Update docs

0.4/.buildinfo

@@ -1,4 +1,4 @@
 # Sphinx build info version 1
 # This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
-config: 5d2632d2fbe792265ca773e6a51b93f0
+config: 7db92125069190747434f1095b430195
 tags: d77d1c0d9ca2f4c8421862c7c5a0d620

0.4/_sources/tutorials/getting-started-gurobipy.ipynb.txt

@@ -45,16 +45,10 @@
     "- Python version, compatible with the Pyomo and Gurobipy modeling languages,\n",
     "- Julia version, compatible with the JuMP modeling language.\n",
     "\n",
-    "In this tutorial, we will demonstrate how to use and install the Python/Gurobipy version of the package. The first step is to install Python 3.8+ in your computer. See the [official Python website for more instructions](https://www.python.org/downloads/). After Python is installed, we proceed to install MIPLearn using `pip`:\n",
+    "In this tutorial, we will demonstrate how to use and install the Python/Gurobipy version of the package. The first step is to install Python 3.9+ in your computer. See the [official Python website for more instructions](https://www.python.org/downloads/). After Python is installed, we proceed to install MIPLearn using `pip`:\n",
     "\n",
     "```\n",
-    "$ pip install MIPLearn==0.4\n",
-    "```\n",
-    "\n",
-    "In addition to MIPLearn itself, we will also install Gurobi 10.0, a state-of-the-art commercial MILP solver. This step also install a demo license for Gurobi, which should able to solve the small optimization problems in this tutorial. A license is required for solving larger-scale problems.\n",
-    "\n",
-    "```\n",
-    "$ pip install 'gurobipy>=10,<10.1'\n",
+    "$ pip install MIPLearn~=0.4\n",
     "```"
    ]
   },

0.4/_sources/tutorials/getting-started-pyomo.ipynb.txt

@@ -45,16 +45,10 @@
     "- Python version, compatible with the Pyomo and Gurobipy modeling languages,\n",
     "- Julia version, compatible with the JuMP modeling language.\n",
     "\n",
-    "In this tutorial, we will demonstrate how to use and install the Python/Pyomo version of the package. The first step is to install Python 3.8+ in your computer. See the [official Python website for more instructions](https://www.python.org/downloads/). After Python is installed, we proceed to install MIPLearn using `pip`:\n",
+    "In this tutorial, we will demonstrate how to use and install the Python/Pyomo version of the package. The first step is to install Python 3.9+ in your computer. See the [official Python website for more instructions](https://www.python.org/downloads/). After Python is installed, we proceed to install MIPLearn using `pip`:\n",
     "\n",
     "```\n",
-    "$ pip install MIPLearn==0.4\n",
-    "```\n",
-    "\n",
-    "In addition to MIPLearn itself, we will also install Gurobi 10.0, a state-of-the-art commercial MILP solver. This step also install a demo license for Gurobi, which should able to solve the small optimization problems in this tutorial. A license is required for solving larger-scale problems.\n",
-    "\n",
-    "```\n",
-    "$ pip install 'gurobipy>=10,<10.1'\n",
+    "$ pip install MIPLearn~=0.4\n",
     "```"
    ]
   },

0.4/_static/basic.css

@@ -4,7 +4,7 @@
  *
  * Sphinx stylesheet -- basic theme.
  *
- * :copyright: Copyright 2007-2023 by the Sphinx team, see AUTHORS.
+ * :copyright: Copyright 2007-2021 by the Sphinx team, see AUTHORS.
  * :license: BSD, see LICENSE for details.
  *
  */
@@ -130,7 +130,7 @@ ul.search li a {
     font-weight: bold;
 }
 
-ul.search li p.context {
+ul.search li div.context {
     color: #888;
     margin: 2px 0 0 30px;
     text-align: left;
@@ -222,7 +222,7 @@ table.modindextable td {
 /* -- general body styles --------------------------------------------------- */
 
 div.body {
-    min-width: 360px;
+    min-width: 450px;
     max-width: 800px;
 }
 
@@ -237,8 +237,14 @@ a.headerlink {
     visibility: hidden;
 }
 
-a:visited {
-    color: #551A8B;
+a.brackets:before,
+span.brackets > a:before{
+    content: "[";
+}
+
+a.brackets:after,
+span.brackets > a:after {
+    content: "]";
 }
 
 h1:hover > a.headerlink,
@@ -329,16 +335,12 @@ p.sidebar-title {
     font-weight: bold;
 }
 
-nav.contents,
-aside.topic,
 div.admonition, div.topic, blockquote {
     clear: left;
 }
 
 /* -- topics ---------------------------------------------------------------- */
 
-nav.contents,
-aside.topic,
 div.topic {
     border: 1px solid #ccc;
     padding: 7px;
@@ -377,8 +379,6 @@ div.body p.centered {
 
 div.sidebar > :last-child,
 aside.sidebar > :last-child,
-nav.contents > :last-child,
-aside.topic > :last-child,
 div.topic > :last-child,
 div.admonition > :last-child {
     margin-bottom: 0;
@@ -386,8 +386,6 @@ div.admonition > :last-child {
 
 div.sidebar::after,
 aside.sidebar::after,
-nav.contents::after,
-aside.topic::after,
 div.topic::after,
 div.admonition::after,
 blockquote::after {
@@ -430,6 +428,10 @@ table.docutils td, table.docutils th {
     border-bottom: 1px solid #aaa;
 }
 
+table.footnote td, table.footnote th {
+    border: 0 !important;
+}
+
 th {
     text-align: left;
     padding-right: 5px;
@@ -506,63 +508,6 @@ table.hlist td {
     vertical-align: top;
 }
 
-/* -- object description styles --------------------------------------------- */
-
-.sig {
-	font-family: 'Consolas', 'Menlo', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', monospace;
-}
-
-.sig-name, code.descname {
-    background-color: transparent;
-    font-weight: bold;
-}
-
-.sig-name {
-	font-size: 1.1em;
-}
-
-code.descname {
-    font-size: 1.2em;
-}
-
-.sig-prename, code.descclassname {
-    background-color: transparent;
-}
-
-.optional {
-    font-size: 1.3em;
-}
-
-.sig-paren {
-    font-size: larger;
-}
-
-.sig-param.n {
-	font-style: italic;
-}
-
-/* C++ specific styling */
-
-.sig-inline.c-texpr,
-.sig-inline.cpp-texpr {
-	font-family: unset;
-}
-
-.sig.c   .k, .sig.c   .kt,
-.sig.cpp .k, .sig.cpp .kt {
-	color: #0033B3;
-}
-
-.sig.c   .m,
-.sig.cpp .m {
-	color: #1750EB;
-}
-
-.sig.c   .s, .sig.c   .sc,
-.sig.cpp .s, .sig.cpp .sc {
-	color: #067D17;
-}
-
 
 /* -- other body styles ----------------------------------------------------- */
 
@@ -613,26 +558,19 @@ ul.simple p {
     margin-bottom: 0;
 }
 
-aside.footnote > span,
-div.citation > span {
+dl.footnote > dt,
+dl.citation > dt {
     float: left;
+    margin-right: 0.5em;
 }
-aside.footnote > span:last-of-type,
-div.citation > span:last-of-type {
-  padding-right: 0.5em;
-}
-aside.footnote > p {
-  margin-left: 2em;
-}
-div.citation > p {
-  margin-left: 4em;
-}
-aside.footnote > p:last-of-type,
-div.citation > p:last-of-type {
+
+dl.footnote > dd,
+dl.citation > dd {
     margin-bottom: 0em;
 }
-aside.footnote > p:last-of-type:after,
-div.citation > p:last-of-type:after {
+
+dl.footnote > dd:after,
+dl.citation > dd:after {
     content: "";
     clear: both;
 }
@@ -649,6 +587,10 @@ dl.field-list > dt {
     padding-right: 5px;
 }
 
+dl.field-list > dt:after {
+    content: ":";
+}
+
 dl.field-list > dd {
     padding-left: 0.5em;
     margin-top: 0em;
@@ -674,16 +616,6 @@ dd {
     margin-left: 30px;
 }
 
-.sig dd {
-    margin-top: 0px;
-    margin-bottom: 0px;
-}
-
-.sig dl {
-    margin-top: 0px;
-    margin-bottom: 0px;
-}
-
 dl > dd:last-child,
 dl > dd:last-child > :last-child {
     margin-bottom: 0;
@@ -702,6 +634,14 @@ dl.glossary dt {
     font-size: 1.1em;
 }
 
+.optional {
+    font-size: 1.3em;
+}
+
+.sig-paren {
+    font-size: larger;
+}
+
 .versionmodified {
     font-style: italic;
 }
@@ -742,9 +682,8 @@ dl.glossary dt {
 
 .classifier:before {
     font-style: normal;
-    margin: 0 0.5em;
+    margin: 0.5em;
     content: ":";
-    display: inline-block;
 }
 
 abbr, acronym {
@@ -752,14 +691,6 @@ abbr, acronym {
     cursor: help;
 }
 
-.translated {
-    background-color: rgba(207, 255, 207, 0.2)
-}
-
-.untranslated {
-    background-color: rgba(255, 207, 207, 0.2)
-}
-
 /* -- code displays --------------------------------------------------------- */
 
 pre {
@@ -776,7 +707,6 @@ span.pre {
     -ms-hyphens: none;
     -webkit-hyphens: none;
     hyphens: none;
-    white-space: nowrap;
 }
 
 div[class*="highlight-"] {
@@ -840,12 +770,8 @@ div.code-block-caption code {
 
 table.highlighttable td.linenos,
 span.linenos,
-div.highlight span.gp {  /* gp: Generic.Prompt */
-  user-select: none;
-  -webkit-user-select: text; /* Safari fallback only */
-  -webkit-user-select: none; /* Chrome/Safari */
-  -moz-user-select: none; /* Firefox */
-  -ms-user-select: none; /* IE10+ */
+div.doctest > div.highlight span.gp {  /* gp: Generic.Prompt */
+    user-select: none;
 }
 
 div.code-block-caption span.caption-number {
@@ -860,6 +786,16 @@ div.literal-block-wrapper {
     margin: 1em 0;
 }
 
+code.descname {
+    background-color: transparent;
+    font-weight: bold;
+    font-size: 1.2em;
+}
+
+code.descclassname {
+    background-color: transparent;
+}
+
 code.xref, a code {
     background-color: transparent;
     font-weight: bold;

0.4/_static/doctools.js

@@ -2,155 +2,320 @@
  * doctools.js
  * ~~~~~~~~~~~
  *
- * Base JavaScript utilities for all Sphinx HTML documentation.
+ * Sphinx JavaScript utilities for all documentation.
  *
- * :copyright: Copyright 2007-2023 by the Sphinx team, see AUTHORS.
+ * :copyright: Copyright 2007-2021 by the Sphinx team, see AUTHORS.
  * :license: BSD, see LICENSE for details.
  *
  */
-"use strict";
-
-const BLACKLISTED_KEY_CONTROL_ELEMENTS = new Set([
-  "TEXTAREA",
-  "INPUT",
-  "SELECT",
-  "BUTTON",
-]);
-
-const _ready = (callback) => {
-  if (document.readyState !== "loading") {
-    callback();
-  } else {
-    document.addEventListener("DOMContentLoaded", callback);
+
+/**
+ * select a different prefix for underscore
+ */
+$u = _.noConflict();
+
+/**
+ * make the code below compatible with browsers without
+ * an installed firebug like debugger
+if (!window.console || !console.firebug) {
+  var names = ["log", "debug", "info", "warn", "error", "assert", "dir",
+    "dirxml", "group", "groupEnd", "time", "timeEnd", "count", "trace",
+    "profile", "profileEnd"];
+  window.console = {};
+  for (var i = 0; i < names.length; ++i)
+    window.console[names[i]] = function() {};
+}
+ */
+
+/**
+ * small helper function to urldecode strings
+ *
+ * See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/decodeURIComponent#Decoding_query_parameters_from_a_URL
+ */
+jQuery.urldecode = function(x) {
+  if (!x) {
+    return x
+  }
+  return decodeURIComponent(x.replace(/\+/g, ' '));
+};
+
+/**
+ * small helper function to urlencode strings
+ */
+jQuery.urlencode = encodeURIComponent;
+
+/**
+ * This function returns the parsed url parameters of the
+ * current request. Multiple values per key are supported,
+ * it will always return arrays of strings for the value parts.
+ */
+jQuery.getQueryParameters = function(s) {
+  if (typeof s === 'undefined')
+    s = document.location.search;
+  var parts = s.substr(s.indexOf('?') + 1).split('&');
+  var result = {};
+  for (var i = 0; i < parts.length; i++) {
+    var tmp = parts[i].split('=', 2);
+    var key = jQuery.urldecode(tmp[0]);
+    var value = jQuery.urldecode(tmp[1]);
+    if (key in result)
+      result[key].push(value);
+    else
+      result[key] = [value];
   }
+  return result;
 };
 
+/**
+ * highlight a given string on a jquery object by wrapping it in
+ * span elements with the given class name.
+ */
+jQuery.fn.highlightText = function(text, className) {
+  function highlight(node, addItems) {
+    if (node.nodeType === 3) {
+      var val = node.nodeValue;
+      var pos = val.toLowerCase().indexOf(text);
+      if (pos >= 0 &&
+          !jQuery(node.parentNode).hasClass(className) &&
+          !jQuery(node.parentNode).hasClass("nohighlight")) {
+        var span;
+        var isInSVG = jQuery(node).closest("body, svg, foreignObject").is("svg");
+        if (isInSVG) {
+          span = document.createElementNS("http://www.w3.org/2000/svg", "tspan");
+        } else {
+          span = document.createElement("span");
+          span.className = className;
+        }
+        span.appendChild(document.createTextNode(val.substr(pos, text.length)));
+        node.parentNode.insertBefore(span, node.parentNode.insertBefore(
+          document.createTextNode(val.substr(pos + text.length)),
+          node.nextSibling));
+        node.nodeValue = val.substr(0, pos);
+        if (isInSVG) {
+          var rect = document.createElementNS("http://www.w3.org/2000/svg", "rect");
+          var bbox = node.parentElement.getBBox();
+          rect.x.baseVal.value = bbox.x;
+          rect.y.baseVal.value = bbox.y;
+          rect.width.baseVal.value = bbox.width;
+          rect.height.baseVal.value = bbox.height;
+          rect.setAttribute('class', className);
+          addItems.push({
+              "parent": node.parentNode,
+              "target": rect});
+        }
+      }
+    }
+    else if (!jQuery(node).is("button, select, textarea")) {
+      jQuery.each(node.childNodes, function() {
+        highlight(this, addItems);
+      });
+    }
+  }
+  var addItems = [];
+  var result = this.each(function() {
+    highlight(this, addItems);
+  });
+  for (var i = 0; i < addItems.length; ++i) {
+    jQuery(addItems[i].parent).before(addItems[i].target);
+  }
+  return result;
+};
+
+/*
+ * backward compatibility for jQuery.browser
+ * This will be supported until firefox bug is fixed.
+ */
+if (!jQuery.browser) {
+  jQuery.uaMatch = function(ua) {
+    ua = ua.toLowerCase();
+
+    var match = /(chrome)[ \/]([\w.]+)/.exec(ua) ||
+      /(webkit)[ \/]([\w.]+)/.exec(ua) ||
+      /(opera)(?:.*version|)[ \/]([\w.]+)/.exec(ua) ||
+      /(msie) ([\w.]+)/.exec(ua) ||
+      ua.indexOf("compatible") < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec(ua) ||
+      [];
+
+    return {
+      browser: match[ 1 ] || "",
+      version: match[ 2 ] || "0"
+    };
+  };
+  jQuery.browser = {};
+  jQuery.browser[jQuery.uaMatch(navigator.userAgent).browser] = true;
+}
+
 /**
  * Small JavaScript module for the documentation.
  */
-const Documentation = {
-  init: () => {
-    Documentation.initDomainIndexTable();
-    Documentation.initOnKeyListeners();
+var Documentation = {
+
+  init : function() {
+    this.fixFirefoxAnchorBug();
+    this.highlightSearchWords();
+    this.initIndexTable();
+    if (DOCUMENTATION_OPTIONS.NAVIGATION_WITH_KEYS) {
+      this.initOnKeyListeners();
+    }
   },
 
   /**
    * i18n support
    */
-  TRANSLATIONS: {},
-  PLURAL_EXPR: (n) => (n === 1 ? 0 : 1),
-  LOCALE: "unknown",
+  TRANSLATIONS : {},
+  PLURAL_EXPR : function(n) { return n === 1 ? 0 : 1; },
+  LOCALE : 'unknown',
 
   // gettext and ngettext don't access this so that the functions
   // can safely bound to a different name (_ = Documentation.gettext)
-  gettext: (string) => {
-    const translated = Documentation.TRANSLATIONS[string];
-    switch (typeof translated) {
-      case "undefined":
-        return string; // no translation
-      case "string":
-        return translated; // translation exists
-      default:
-        return translated[0]; // (singular, plural) translation tuple exists
-    }
+  gettext : function(string) {
+    var translated = Documentation.TRANSLATIONS[string];
+    if (typeof translated === 'undefined')
+      return string;
+    return (typeof translated === 'string') ? translated : translated[0];
   },
 
-  ngettext: (singular, plural, n) => {
-    const translated = Documentation.TRANSLATIONS[singular];
-    if (typeof translated !== "undefined")
-      return translated[Documentation.PLURAL_EXPR(n)];
-    return n === 1 ? singular : plural;
+  ngettext : function(singular, plural, n) {
+    var translated = Documentation.TRANSLATIONS[singular];
+    if (typeof translated === 'undefined')
+      return (n == 1) ? singular : plural;
+    return translated[Documentation.PLURALEXPR(n)];
   },
 
-  addTranslations: (catalog) => {
-    Object.assign(Documentation.TRANSLATIONS, catalog.messages);
-    Documentation.PLURAL_EXPR = new Function(
-      "n",
-      `return (${catalog.plural_expr})`
-    );
-    Documentation.LOCALE = catalog.locale;
+  addTranslations : function(catalog) {
+    for (var key in catalog.messages)
+      this.TRANSLATIONS[key] = catalog.messages[key];
+    this.PLURAL_EXPR = new Function('n', 'return +(' + catalog.plural_expr + ')');
+    this.LOCALE = catalog.locale;
   },
 
   /**
-   * helper function to focus on search bar
+   * add context elements like header anchor links
    */
-  focusSearchBar: () => {
-    document.querySelectorAll("input[name=q]")[0]?.focus();
+  addContextElements : function() {
+    $('div[id] > :header:first').each(function() {
+      $('<a class="headerlink">\u00B6</a>').
+      attr('href', '#' + this.id).
+      attr('title', _('Permalink to this headline')).
+      appendTo(this);
+    });
+    $('dt[id]').each(function() {
+      $('<a class="headerlink">\u00B6</a>').
+      attr('href', '#' + this.id).
+      attr('title', _('Permalink to this definition')).
+      appendTo(this);
+    });
   },
 
   /**
-   * Initialise the domain index toggle buttons
+   * workaround a firefox stupidity
+   * see: https://bugzilla.mozilla.org/show_bug.cgi?id=645075
    */
-  initDomainIndexTable: () => {
-    const toggler = (el) => {
-      const idNumber = el.id.substr(7);
-      const toggledRows = document.querySelectorAll(`tr.cg-${idNumber}`);
-      if (el.src.substr(-9) === "minus.png") {
-        el.src = `${el.src.substr(0, el.src.length - 9)}plus.png`;
-        toggledRows.forEach((el) => (el.style.display = "none"));
-      } else {
-        el.src = `${el.src.substr(0, el.src.length - 8)}minus.png`;
-        toggledRows.forEach((el) => (el.style.display = ""));
+  fixFirefoxAnchorBug : function() {
+    if (document.location.hash && $.browser.mozilla)
+      window.setTimeout(function() {
+        document.location.href += '';
+      }, 10);
+  },
+
+  /**
+   * highlight the search words provided in the url in the text
+   */
+  highlightSearchWords : function() {
+    var params = $.getQueryParameters();
+    var terms = (params.highlight) ? params.highlight[0].split(/\s+/) : [];
+    if (terms.length) {
+      var body = $('div.body');
+      if (!body.length) {
+        body = $('body');
       }
-    };
+      window.setTimeout(function() {
+        $.each(terms, function() {
+          body.highlightText(this.toLowerCase(), 'highlighted');
+        });
+      }, 10);
+      $('<p class="highlight-link"><a href="javascript:Documentation.' +
+        'hideSearchWords()">' + _('Hide Search Matches') + '</a></p>')
+          .appendTo($('#searchbox'));
+    }
+  },
 
-    const togglerElements = document.querySelectorAll("img.toggler");
-    togglerElements.forEach((el) =>
-      el.addEventListener("click", (event) => toggler(event.currentTarget))
-    );
-    togglerElements.forEach((el) => (el.style.display = ""));
-    if (DOCUMENTATION_OPTIONS.COLLAPSE_INDEX) togglerElements.forEach(toggler);
+  /**
+   * init the domain index toggle buttons
+   */
+  initIndexTable : function() {
+    var togglers = $('img.toggler').click(function() {
+      var src = $(this).attr('src');
+      var idnum = $(this).attr('id').substr(7);
+      $('tr.cg-' + idnum).toggle();
+      if (src.substr(-9) === 'minus.png')
+        $(this).attr('src', src.substr(0, src.length-9) + 'plus.png');
+      else
+        $(this).attr('src', src.substr(0, src.length-8) + 'minus.png');
+    }).css('display', '');
+    if (DOCUMENTATION_OPTIONS.COLLAPSE_INDEX) {
+        togglers.click();
+    }
   },
 
-  initOnKeyListeners: () => {
-    // only install a listener if it is really needed
-    if (
-      !DOCUMENTATION_OPTIONS.NAVIGATION_WITH_KEYS &&
-      !DOCUMENTATION_OPTIONS.ENABLE_SEARCH_SHORTCUTS
-    )
-      return;
-
-    document.addEventListener("keydown", (event) => {
-      // bail for input elements
-      if (BLACKLISTED_KEY_CONTROL_ELEMENTS.has(document.activeElement.tagName)) return;
-      // bail with special keys
-      if (event.altKey || event.ctrlKey || event.metaKey) return;
-
-      if (!event.shiftKey) {
-        switch (event.key) {
-          case "ArrowLeft":
-            if (!DOCUMENTATION_OPTIONS.NAVIGATION_WITH_KEYS) break;
-
-            const prevLink = document.querySelector('link[rel="prev"]');
-            if (prevLink && prevLink.href) {
-              window.location.href = prevLink.href;
-              event.preventDefault();
+  /**
+   * helper function to hide the search marks again
+   */
+  hideSearchWords : function() {
+    $('#searchbox .highlight-link').fadeOut(300);
+    $('span.highlighted').removeClass('highlighted');
+  },
+
+  /**
+   * make the url absolute
+   */
+  makeURL : function(relativeURL) {
+    return DOCUMENTATION_OPTIONS.URL_ROOT + '/' + relativeURL;
+  },
+
+  /**
+   * get the current relative url
+   */
+  getCurrentURL : function() {
+    var path = document.location.pathname;
+    var parts = path.split(/\//);
+    $.each(DOCUMENTATION_OPTIONS.URL_ROOT.split(/\//), function() {
+      if (this === '..')
+        parts.pop();
+    });
+    var url = parts.join('/');
+    return path.substring(url.lastIndexOf('/') + 1, path.length - 1);
+  },
+
+  initOnKeyListeners: function() {
+    $(document).keydown(function(event) {
+      var activeElementType = document.activeElement.tagName;
+      // don't navigate when in search box, textarea, dropdown or button
+      if (activeElementType !== 'TEXTAREA' && activeElementType !== 'INPUT' && activeElementType !== 'SELECT'
+          && activeElementType !== 'BUTTON' && !event.altKey && !event.ctrlKey && !event.metaKey
+          && !event.shiftKey) {
+        switch (event.keyCode) {
+          case 37: // left
+            var prevHref = $('link[rel="prev"]').prop('href');
+            if (prevHref) {
+              window.location.href = prevHref;
+              return false;
             }
-            break;
-          case "ArrowRight":
-            if (!DOCUMENTATION_OPTIONS.NAVIGATION_WITH_KEYS) break;
-
-            const nextLink = document.querySelector('link[rel="next"]');
-            if (nextLink && nextLink.href) {
-              window.location.href = nextLink.href;
-              event.preventDefault();
+          case 39: // right
+            var nextHref = $('link[rel="next"]').prop('href');
+            if (nextHref) {
+              window.location.href = nextHref;
+              return false;
             }
-            break;
         }
       }
-
-      // some keyboard layouts may need Shift to get /
-      switch (event.key) {
-        case "/":
-          if (!DOCUMENTATION_OPTIONS.ENABLE_SEARCH_SHORTCUTS) break;
-          Documentation.focusSearchBar();
-          event.preventDefault();
-      }
     });
-  },
+  }
 };
 
 // quick alias for translations
-const _ = Documentation.gettext;
+_ = Documentation.gettext;
 
-_ready(Documentation.init);
+$(document).ready(function() {
+  Documentation.init();
+});

0.4/_static/documentation_options.js

@@ -1,13 +1,12 @@
-const DOCUMENTATION_OPTIONS = {
+var DOCUMENTATION_OPTIONS = {
+    URL_ROOT: document.getElementById("documentation_options").getAttribute('data-url_root'),
     VERSION: '0.4',
-    LANGUAGE: 'en',
+    LANGUAGE: 'None',
     COLLAPSE_INDEX: false,
     BUILDER: 'dirhtml',
     FILE_SUFFIX: '.html',
     LINK_SUFFIX: '.html',
     HAS_SOURCE: true,
     SOURCELINK_SUFFIX: '.txt',
-    NAVIGATION_WITH_KEYS: true,
-    SHOW_SEARCH_SUMMARY: true,
-    ENABLE_SEARCH_SHORTCUTS: true,
+    NAVIGATION_WITH_KEYS: true
 };

0.4/_static/language_data.js

@@ -5,12 +5,12 @@
  * This script contains the language-specific data used by searchtools.js,
  * namely the list of stopwords, stemmer, scorer and splitter.
  *
- * :copyright: Copyright 2007-2023 by the Sphinx team, see AUTHORS.
+ * :copyright: Copyright 2007-2021 by the Sphinx team, see AUTHORS.
  * :license: BSD, see LICENSE for details.
  *
  */
 
-var stopwords = ["a", "and", "are", "as", "at", "be", "but", "by", "for", "if", "in", "into", "is", "it", "near", "no", "not", "of", "on", "or", "such", "that", "the", "their", "then", "there", "these", "they", "this", "to", "was", "will", "with"];
+var stopwords = ["a","and","are","as","at","be","but","by","for","if","in","into","is","it","near","no","not","of","on","or","such","that","the","their","then","there","these","they","this","to","was","will","with"];
 
 
 /* Non-minified version is copied as a separate JS file, is available */
@@ -197,3 +197,101 @@ var Stemmer = function() {
   }
 }
 
+
+
+
+var splitChars = (function() {
+    var result = {};
+    var singles = [96, 180, 187, 191, 215, 247, 749, 885, 903, 907, 909, 930, 1014, 1648,
+         1748, 1809, 2416, 2473, 2481, 2526, 2601, 2609, 2612, 2615, 2653, 2702,
+         2706, 2729, 2737, 2740, 2857, 2865, 2868, 2910, 2928, 2948, 2961, 2971,
+         2973, 3085, 3089, 3113, 3124, 3213, 3217, 3241, 3252, 3295, 3341, 3345,
+         3369, 3506, 3516, 3633, 3715, 3721, 3736, 3744, 3748, 3750, 3756, 3761,
+         3781, 3912, 4239, 4347, 4681, 4695, 4697, 4745, 4785, 4799, 4801, 4823,
+         4881, 5760, 5901, 5997, 6313, 7405, 8024, 8026, 8028, 8030, 8117, 8125,
+         8133, 8181, 8468, 8485, 8487, 8489, 8494, 8527, 11311, 11359, 11687, 11695,
+         11703, 11711, 11719, 11727, 11735, 12448, 12539, 43010, 43014, 43019, 43587,
+         43696, 43713, 64286, 64297, 64311, 64317, 64319, 64322, 64325, 65141];
+    var i, j, start, end;
+    for (i = 0; i < singles.length; i++) {
+        result[singles[i]] = true;
+    }
+    var ranges = [[0, 47], [58, 64], [91, 94], [123, 169], [171, 177], [182, 184], [706, 709],
+         [722, 735], [741, 747], [751, 879], [888, 889], [894, 901], [1154, 1161],
+         [1318, 1328], [1367, 1368], [1370, 1376], [1416, 1487], [1515, 1519], [1523, 1568],
+         [1611, 1631], [1642, 1645], [1750, 1764], [1767, 1773], [1789, 1790], [1792, 1807],
+         [1840, 1868], [1958, 1968], [1970, 1983], [2027, 2035], [2038, 2041], [2043, 2047],
+         [2070, 2073], [2075, 2083], [2085, 2087], [2089, 2307], [2362, 2364], [2366, 2383],
+         [2385, 2391], [2402, 2405], [2419, 2424], [2432, 2436], [2445, 2446], [2449, 2450],
+         [2483, 2485], [2490, 2492], [2494, 2509], [2511, 2523], [2530, 2533], [2546, 2547],
+         [2554, 2564], [2571, 2574], [2577, 2578], [2618, 2648], [2655, 2661], [2672, 2673],
+         [2677, 2692], [2746, 2748], [2750, 2767], [2769, 2783], [2786, 2789], [2800, 2820],
+         [2829, 2830], [2833, 2834], [2874, 2876], [2878, 2907], [2914, 2917], [2930, 2946],
+         [2955, 2957], [2966, 2968], [2976, 2978], [2981, 2983], [2987, 2989], [3002, 3023],
+         [3025, 3045], [3059, 3076], [3130, 3132], [3134, 3159], [3162, 3167], [3170, 3173],
+         [3184, 3191], [3199, 3204], [3258, 3260], [3262, 3293], [3298, 3301], [3312, 3332],
+         [3386, 3388], [3390, 3423], [3426, 3429], [3446, 3449], [3456, 3460], [3479, 3481],
+         [3518, 3519], [3527, 3584], [3636, 3647], [3655, 3663], [3674, 3712], [3717, 3718],
+         [3723, 3724], [3726, 3731], [3752, 3753], [3764, 3772], [3774, 3775], [3783, 3791],
+         [3802, 3803], [3806, 3839], [3841, 3871], [3892, 3903], [3949, 3975], [3980, 4095],
+         [4139, 4158], [4170, 4175], [4182, 4185], [4190, 4192], [4194, 4196], [4199, 4205],
+         [4209, 4212], [4226, 4237], [4250, 4255], [4294, 4303], [4349, 4351], [4686, 4687],
+         [4702, 4703], [4750, 4751], [4790, 4791], [4806, 4807], [4886, 4887], [4955, 4968],
+         [4989, 4991], [5008, 5023], [5109, 5120], [5741, 5742], [5787, 5791], [5867, 5869],
+         [5873, 5887], [5906, 5919], [5938, 5951], [5970, 5983], [6001, 6015], [6068, 6102],
+         [6104, 6107], [6109, 6111], [6122, 6127], [6138, 6159], [6170, 6175], [6264, 6271],
+         [6315, 6319], [6390, 6399], [6429, 6469], [6510, 6511], [6517, 6527], [6572, 6592],
+         [6600, 6607], [6619, 6655], [6679, 6687], [6741, 6783], [6794, 6799], [6810, 6822],
+         [6824, 6916], [6964, 6980], [6988, 6991], [7002, 7042], [7073, 7085], [7098, 7167],
+         [7204, 7231], [7242, 7244], [7294, 7400], [7410, 7423], [7616, 7679], [7958, 7959],
+         [7966, 7967], [8006, 8007], [8014, 8015], [8062, 8063], [8127, 8129], [8141, 8143],
+         [8148, 8149], [8156, 8159], [8173, 8177], [8189, 8303], [8306, 8307], [8314, 8318],
+         [8330, 8335], [8341, 8449], [8451, 8454], [8456, 8457], [8470, 8472], [8478, 8483],
+         [8506, 8507], [8512, 8516], [8522, 8525], [8586, 9311], [9372, 9449], [9472, 10101],
+         [10132, 11263], [11493, 11498], [11503, 11516], [11518, 11519], [11558, 11567],
+         [11622, 11630], [11632, 11647], [11671, 11679], [11743, 11822], [11824, 12292],
+         [12296, 12320], [12330, 12336], [12342, 12343], [12349, 12352], [12439, 12444],
+         [12544, 12548], [12590, 12592], [12687, 12689], [12694, 12703], [12728, 12783],
+         [12800, 12831], [12842, 12880], [12896, 12927], [12938, 12976], [12992, 13311],
+         [19894, 19967], [40908, 40959], [42125, 42191], [42238, 42239], [42509, 42511],
+         [42540, 42559], [42592, 42593], [42607, 42622], [42648, 42655], [42736, 42774],
+         [42784, 42785], [42889, 42890], [42893, 43002], [43043, 43055], [43062, 43071],
+         [43124, 43137], [43188, 43215], [43226, 43249], [43256, 43258], [43260, 43263],
+         [43302, 43311], [43335, 43359], [43389, 43395], [43443, 43470], [43482, 43519],
+         [43561, 43583], [43596, 43599], [43610, 43615], [43639, 43641], [43643, 43647],
+         [43698, 43700], [43703, 43704], [43710, 43711], [43715, 43738], [43742, 43967],
+         [44003, 44015], [44026, 44031], [55204, 55215], [55239, 55242], [55292, 55295],
+         [57344, 63743], [64046, 64047], [64110, 64111], [64218, 64255], [64263, 64274],
+         [64280, 64284], [64434, 64466], [64830, 64847], [64912, 64913], [64968, 65007],
+         [65020, 65135], [65277, 65295], [65306, 65312], [65339, 65344], [65371, 65381],
+         [65471, 65473], [65480, 65481], [65488, 65489], [65496, 65497]];
+    for (i = 0; i < ranges.length; i++) {
+        start = ranges[i][0];
+        end = ranges[i][1];
+        for (j = start; j <= end; j++) {
+            result[j] = true;
+        }
+    }
+    return result;
+})();
+
+function splitQuery(query) {
+    var result = [];
+    var start = -1;
+    for (var i = 0; i < query.length; i++) {
+        if (splitChars[query.charCodeAt(i)]) {
+            if (start !== -1) {
+                result.push(query.slice(start, i));
+                start = -1;
+            }
+        } else if (start === -1) {
+            start = i;
+        }
+    }
+    if (start !== -1) {
+        result.push(query.slice(start));
+    }
+    return result;
+}
+
+

0.4/_static/pygments.css

@@ -22,6 +22,7 @@ span.linenos.special { color: #000000; background-color: #ffffc0; padding-left:
 .highlight .cs { color: #8f5902; font-style: italic } /* Comment.Special */
 .highlight .gd { color: #a40000 } /* Generic.Deleted */
 .highlight .ge { color: #000000; font-style: italic } /* Generic.Emph */
+.highlight .ges { color: #000000; font-weight: bold; font-style: italic } /* Generic.EmphStrong */
 .highlight .gr { color: #ef2929 } /* Generic.Error */
 .highlight .gh { color: #000080; font-weight: bold } /* Generic.Heading */
 .highlight .gi { color: #00A000 } /* Generic.Inserted */

0.4/_static/searchtools.js

@@ -4,24 +4,22 @@
  *
  * Sphinx JavaScript utilities for the full-text search.
  *
- * :copyright: Copyright 2007-2023 by the Sphinx team, see AUTHORS.
+ * :copyright: Copyright 2007-2021 by the Sphinx team, see AUTHORS.
  * :license: BSD, see LICENSE for details.
  *
  */
-"use strict";
 
-/**
- * Simple result scoring code.
- */
-if (typeof Scorer === "undefined") {
+if (!Scorer) {
+  /**
+   * Simple result scoring code.
+   */
   var Scorer = {
     // Implement the following function to further tweak the score for each result
-    // The function takes a result array [docname, title, anchor, descr, score, filename]
+    // The function takes a result array [filename, title, anchor, descr, score]
     // and returns the new score.
     /*
-    score: result => {
-      const [docname, title, anchor, descr, score, filename] = result
-      return score
+    score: function(result) {
+      return result[4];
     },
     */
 
@@ -30,11 +28,9 @@ if (typeof Scorer === "undefined") {
     // or matches in the last dotted part of the object name
     objPartialMatch: 6,
     // Additive scores depending on the priority of the object
-    objPrio: {
-      0: 15, // used to be importantResults
-      1: 5, // used to be objectResults
-      2: -5, // used to be unimportantResults
-    },
+    objPrio: {0:  15,   // used to be importantResults
+              1:  5,   // used to be objectResults
+              2: -5},  // used to be unimportantResults
     //  Used when the priority is not in the mapping.
     objPrioDefault: 0,
 
@@ -43,503 +39,452 @@ if (typeof Scorer === "undefined") {
     partialTitle: 7,
     // query found in terms
     term: 5,
-    partialTerm: 2,
+    partialTerm: 2
   };
 }
 
-const _removeChildren = (element) => {
-  while (element && element.lastChild) element.removeChild(element.lastChild);
-};
-
-/**
- * See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions#escaping
- */
-const _escapeRegExp = (string) =>
-  string.replace(/[.*+\-?^${}()|[\]\\]/g, "\\$&"); // $& means the whole matched string
-
-const _displayItem = (item, searchTerms, highlightTerms) => {
-  const docBuilder = DOCUMENTATION_OPTIONS.BUILDER;
-  const docFileSuffix = DOCUMENTATION_OPTIONS.FILE_SUFFIX;
-  const docLinkSuffix = DOCUMENTATION_OPTIONS.LINK_SUFFIX;
-  const showSearchSummary = DOCUMENTATION_OPTIONS.SHOW_SEARCH_SUMMARY;
-  const contentRoot = document.documentElement.dataset.content_root;
-
-  const [docName, title, anchor, descr, score, _filename] = item;
-
-  let listItem = document.createElement("li");
-  let requestUrl;
-  let linkUrl;
-  if (docBuilder === "dirhtml") {
-    // dirhtml builder
-    let dirname = docName + "/";
-    if (dirname.match(/\/index\/$/))
-      dirname = dirname.substring(0, dirname.length - 6);
-    else if (dirname === "index/") dirname = "";
-    requestUrl = contentRoot + dirname;
-    linkUrl = requestUrl;
-  } else {
-    // normal html builders
-    requestUrl = contentRoot + docName + docFileSuffix;
-    linkUrl = docName + docLinkSuffix;
+if (!splitQuery) {
+  function splitQuery(query) {
+    return query.split(/\s+/);
   }
-  let linkEl = listItem.appendChild(document.createElement("a"));
-  linkEl.href = linkUrl + anchor;
-  linkEl.dataset.score = score;
-  linkEl.innerHTML = title;
-  if (descr) {
-    listItem.appendChild(document.createElement("span")).innerHTML =
-      " (" + descr + ")";
-    // highlight search terms in the description
-    if (SPHINX_HIGHLIGHT_ENABLED)  // set in sphinx_highlight.js
-      highlightTerms.forEach((term) => _highlightText(listItem, term, "highlighted"));
-  }
-  else if (showSearchSummary)
-    fetch(requestUrl)
-      .then((responseData) => responseData.text())
-      .then((data) => {
-        if (data)
-          listItem.appendChild(
-            Search.makeSearchSummary(data, searchTerms)
-          );
-        // highlight search terms in the summary
-        if (SPHINX_HIGHLIGHT_ENABLED)  // set in sphinx_highlight.js
-          highlightTerms.forEach((term) => _highlightText(listItem, term, "highlighted"));
-      });
-  Search.output.appendChild(listItem);
-};
-const _finishSearch = (resultCount) => {
-  Search.stopPulse();
-  Search.title.innerText = _("Search Results");
-  if (!resultCount)
-    Search.status.innerText = Documentation.gettext(
-      "Your search did not match any documents. Please make sure that all words are spelled correctly and that you've selected enough categories."
-    );
-  else
-    Search.status.innerText = _(
-      `Search finished, found ${resultCount} page(s) matching the search query.`
-    );
-};
-const _displayNextItem = (
-  results,
-  resultCount,
-  searchTerms,
-  highlightTerms,
-) => {
-  // results left, load the summary and display it
-  // this is intended to be dynamic (don't sub resultsCount)
-  if (results.length) {
-    _displayItem(results.pop(), searchTerms, highlightTerms);
-    setTimeout(
-      () => _displayNextItem(results, resultCount, searchTerms, highlightTerms),
-      5
-    );
-  }
-  // search finished, update title and status message
-  else _finishSearch(resultCount);
-};
-
-/**
- * Default splitQuery function. Can be overridden in ``sphinx.search`` with a
- * custom function per language.
- *
- * The regular expression works by splitting the string on consecutive characters
- * that are not Unicode letters, numbers, underscores, or emoji characters.
- * This is the same as ``\W+`` in Python, preserving the surrogate pair area.
- */
-if (typeof splitQuery === "undefined") {
-  var splitQuery = (query) => query
-      .split(/[^\p{Letter}\p{Number}_\p{Emoji_Presentation}]+/gu)
-      .filter(term => term)  // remove remaining empty strings
 }
 
 /**
  * Search Module
  */
-const Search = {
-  _index: null,
-  _queued_query: null,
-  _pulse_status: -1,
-
-  htmlToText: (htmlString) => {
-    const htmlElement = new DOMParser().parseFromString(htmlString, 'text/html');
-    htmlElement.querySelectorAll(".headerlink").forEach((el) => { el.remove() });
-    const docContent = htmlElement.querySelector('[role="main"]');
-    if (docContent !== undefined) return docContent.textContent;
-    console.warn(
-      "Content block not found. Sphinx search tries to obtain it via '[role=main]'. Could you check your theme or template."
-    );
-    return "";
+var Search = {
+
+  _index : null,
+  _queued_query : null,
+  _pulse_status : -1,
+
+  htmlToText : function(htmlString) {
+      var virtualDocument = document.implementation.createHTMLDocument('virtual');
+      var htmlElement = $(htmlString, virtualDocument);
+      htmlElement.find('.headerlink').remove();
+      docContent = htmlElement.find('[role=main]')[0];
+      if(docContent === undefined) {
+          console.warn("Content block not found. Sphinx search tries to obtain it " +
+                       "via '[role=main]'. Could you check your theme or template.");
+          return "";
+      }
+      return docContent.textContent || docContent.innerText;
   },
 
-  init: () => {
-    const query = new URLSearchParams(window.location.search).get("q");
-    document
-      .querySelectorAll('input[name="q"]')
-      .forEach((el) => (el.value = query));
-    if (query) Search.performSearch(query);
+  init : function() {
+      var params = $.getQueryParameters();
+      if (params.q) {
+          var query = params.q[0];
+          $('input[name="q"]')[0].value = query;
+          this.performSearch(query);
+      }
   },
 
-  loadIndex: (url) =>
-    (document.body.appendChild(document.createElement("script")).src = url),
+  loadIndex : function(url) {
+    $.ajax({type: "GET", url: url, data: null,
+            dataType: "script", cache: true,
+            complete: function(jqxhr, textstatus) {
+              if (textstatus != "success") {
+                document.getElementById("searchindexloader").src = url;
+              }
+            }});
+  },
 
-  setIndex: (index) => {
-    Search._index = index;
-    if (Search._queued_query !== null) {
-      const query = Search._queued_query;
-      Search._queued_query = null;
-      Search.query(query);
+  setIndex : function(index) {
+    var q;
+    this._index = index;
+    if ((q = this._queued_query) !== null) {
+      this._queued_query = null;
+      Search.query(q);
     }
   },
 
-  hasIndex: () => Search._index !== null,
-
-  deferQuery: (query) => (Search._queued_query = query),
+  hasIndex : function() {
+      return this._index !== null;
+  },
 
-  stopPulse: () => (Search._pulse_status = -1),
+  deferQuery : function(query) {
+      this._queued_query = query;
+  },
 
-  startPulse: () => {
-    if (Search._pulse_status >= 0) return;
+  stopPulse : function() {
+      this._pulse_status = 0;
+  },
 
-    const pulse = () => {
+  startPulse : function() {
+    if (this._pulse_status >= 0)
+        return;
+    function pulse() {
+      var i;
       Search._pulse_status = (Search._pulse_status + 1) % 4;
-      Search.dots.innerText = ".".repeat(Search._pulse_status);
-      if (Search._pulse_status >= 0) window.setTimeout(pulse, 500);
-    };
+      var dotString = '';
+      for (i = 0; i < Search._pulse_status; i++)
+        dotString += '.';
+      Search.dots.text(dotString);
+      if (Search._pulse_status > -1)
+        window.setTimeout(pulse, 500);
+    }
     pulse();
   },
 
   /**
    * perform a search for something (or wait until index is loaded)
    */
-  performSearch: (query) => {
+  performSearch : function(query) {
     // create the required interface elements
-    const searchText = document.createElement("h2");
-    searchText.textContent = _("Searching");
-    const searchSummary = document.createElement("p");
-    searchSummary.classList.add("search-summary");
-    searchSummary.innerText = "";
-    const searchList = document.createElement("ul");
-    searchList.classList.add("search");
-
-    const out = document.getElementById("search-results");
-    Search.title = out.appendChild(searchText);
-    Search.dots = Search.title.appendChild(document.createElement("span"));
-    Search.status = out.appendChild(searchSummary);
-    Search.output = out.appendChild(searchList);
-
-    const searchProgress = document.getElementById("search-progress");
-    // Some themes don't use the search progress node
-    if (searchProgress) {
-      searchProgress.innerText = _("Preparing search...");
-    }
-    Search.startPulse();
+    this.out = $('#search-results');
+    this.title = $('<h2>' + _('Searching') + '</h2>').appendTo(this.out);
+    this.dots = $('<span></span>').appendTo(this.title);
+    this.status = $('<p class="search-summary">&nbsp;</p>').appendTo(this.out);
+    this.output = $('<ul class="search"/>').appendTo(this.out);
+
+    $('#search-progress').text(_('Preparing search...'));
+    this.startPulse();
 
     // index already loaded, the browser was quick!
-    if (Search.hasIndex()) Search.query(query);
-    else Search.deferQuery(query);
+    if (this.hasIndex())
+      this.query(query);
+    else
+      this.deferQuery(query);
   },
 
   /**
    * execute search (requires search index to be loaded)
    */
-  query: (query) => {
-    const filenames = Search._index.filenames;
-    const docNames = Search._index.docnames;
-    const titles = Search._index.titles;
-    const allTitles = Search._index.alltitles;
-    const indexEntries = Search._index.indexentries;
-
-    // stem the search terms and add them to the correct list
-    const stemmer = new Stemmer();
-    const searchTerms = new Set();
-    const excludedTerms = new Set();
-    const highlightTerms = new Set();
-    const objectTerms = new Set(splitQuery(query.toLowerCase().trim()));
-    splitQuery(query.trim()).forEach((queryTerm) => {
-      const queryTermLower = queryTerm.toLowerCase();
-
-      // maybe skip this "word"
-      // stopwords array is from language_data.js
-      if (
-        stopwords.indexOf(queryTermLower) !== -1 ||
-        queryTerm.match(/^\d+$/)
-      )
-        return;
+  query : function(query) {
+    var i;
+
+    // stem the searchterms and add them to the correct list
+    var stemmer = new Stemmer();
+    var searchterms = [];
+    var excluded = [];
+    var hlterms = [];
+    var tmp = splitQuery(query);
+    var objectterms = [];
+    for (i = 0; i < tmp.length; i++) {
+      if (tmp[i] !== "") {
+          objectterms.push(tmp[i].toLowerCase());
+      }
 
+      if ($u.indexOf(stopwords, tmp[i].toLowerCase()) != -1 || tmp[i] === "") {
+        // skip this "word"
+        continue;
+      }
       // stem the word
-      let word = stemmer.stemWord(queryTermLower);
+      var word = stemmer.stemWord(tmp[i].toLowerCase());
+      // prevent stemmer from cutting word smaller than two chars
+      if(word.length < 3 && tmp[i].length >= 3) {
+        word = tmp[i];
+      }
+      var toAppend;
       // select the correct list
-      if (word[0] === "-") excludedTerms.add(word.substr(1));
+      if (word[0] == '-') {
+        toAppend = excluded;
+        word = word.substr(1);
+      }
       else {
-        searchTerms.add(word);
-        highlightTerms.add(queryTermLower);
+        toAppend = searchterms;
+        hlterms.push(tmp[i].toLowerCase());
       }
-    });
-
-    if (SPHINX_HIGHLIGHT_ENABLED) {  // set in sphinx_highlight.js
-      localStorage.setItem("sphinx_highlight_terms", [...highlightTerms].join(" "))
+      // only add if not already in the list
+      if (!$u.contains(toAppend, word))
+        toAppend.push(word);
     }
+    var highlightstring = '?highlight=' + $.urlencode(hlterms.join(" "));
 
-    // console.debug("SEARCH: searching for:");
-    // console.info("required: ", [...searchTerms]);
-    // console.info("excluded: ", [...excludedTerms]);
-
-    // array of [docname, title, anchor, descr, score, filename]
-    let results = [];
-    _removeChildren(document.getElementById("search-progress"));
-
-    const queryLower = query.toLowerCase();
-    for (const [title, foundTitles] of Object.entries(allTitles)) {
-      if (title.toLowerCase().includes(queryLower) && (queryLower.length >= title.length/2)) {
-        for (const [file, id] of foundTitles) {
-          let score = Math.round(100 * queryLower.length / title.length)
-          results.push([
-            docNames[file],
-            titles[file] !== title ? `${titles[file]} > ${title}` : title,
-            id !== null ? "#" + id : "",
-            null,
-            score,
-            filenames[file],
-          ]);
-        }
-      }
-    }
+    // console.debug('SEARCH: searching for:');
+    // console.info('required: ', searchterms);
+    // console.info('excluded: ', excluded);
 
-    // search for explicit entries in index directives
-    for (const [entry, foundEntries] of Object.entries(indexEntries)) {
-      if (entry.includes(queryLower) && (queryLower.length >= entry.length/2)) {
-        for (const [file, id] of foundEntries) {
-          let score = Math.round(100 * queryLower.length / entry.length)
-          results.push([
-            docNames[file],
-            titles[file],
-            id ? "#" + id : "",
-            null,
-            score,
-            filenames[file],
-          ]);
-        }
-      }
-    }
+    // prepare search
+    var terms = this._index.terms;
+    var titleterms = this._index.titleterms;
+
+    // array of [filename, title, anchor, descr, score]
+    var results = [];
+    $('#search-progress').empty();
 
     // lookup as object
-    objectTerms.forEach((term) =>
-      results.push(...Search.performObjectSearch(term, objectTerms))
-    );
+    for (i = 0; i < objectterms.length; i++) {
+      var others = [].concat(objectterms.slice(0, i),
+                             objectterms.slice(i+1, objectterms.length));
+      results = results.concat(this.performObjectSearch(objectterms[i], others));
+    }
 
     // lookup as search terms in fulltext
-    results.push(...Search.performTermsSearch(searchTerms, excludedTerms));
+    results = results.concat(this.performTermsSearch(searchterms, excluded, terms, titleterms));
 
     // let the scorer override scores with a custom scoring function
-    if (Scorer.score) results.forEach((item) => (item[4] = Scorer.score(item)));
+    if (Scorer.score) {
+      for (i = 0; i < results.length; i++)
+        results[i][4] = Scorer.score(results[i]);
+    }
 
     // now sort the results by score (in opposite order of appearance, since the
     // display function below uses pop() to retrieve items) and then
     // alphabetically
-    results.sort((a, b) => {
-      const leftScore = a[4];
-      const rightScore = b[4];
-      if (leftScore === rightScore) {
+    results.sort(function(a, b) {
+      var left = a[4];
+      var right = b[4];
+      if (left > right) {
+        return 1;
+      } else if (left < right) {
+        return -1;
+      } else {
         // same score: sort alphabetically
-        const leftTitle = a[1].toLowerCase();
-        const rightTitle = b[1].toLowerCase();
-        if (leftTitle === rightTitle) return 0;
-        return leftTitle > rightTitle ? -1 : 1; // inverted is intentional
+        left = a[1].toLowerCase();
+        right = b[1].toLowerCase();
+        return (left > right) ? -1 : ((left < right) ? 1 : 0);
       }
-      return leftScore > rightScore ? 1 : -1;
     });
 
-    // remove duplicate search results
-    // note the reversing of results, so that in the case of duplicates, the highest-scoring entry is kept
-    let seen = new Set();
-    results = results.reverse().reduce((acc, result) => {
-      let resultStr = result.slice(0, 4).concat([result[5]]).map(v => String(v)).join(',');
-      if (!seen.has(resultStr)) {
-        acc.push(result);
-        seen.add(resultStr);
-      }
-      return acc;
-    }, []);
-
-    results = results.reverse();
-
     // for debugging
     //Search.lastresults = results.slice();  // a copy
-    // console.info("search results:", Search.lastresults);
+    //console.info('search results:', Search.lastresults);
 
     // print the results
-    _displayNextItem(results, results.length, searchTerms, highlightTerms);
+    var resultCount = results.length;
+    function displayNextItem() {
+      // results left, load the summary and display it
+      if (results.length) {
+        var item = results.pop();
+        var listItem = $('<li></li>');
+        var requestUrl = "";
+        var linkUrl = "";
+        if (DOCUMENTATION_OPTIONS.BUILDER === 'dirhtml') {
+          // dirhtml builder
+          var dirname = item[0] + '/';
+          if (dirname.match(/\/index\/$/)) {
+            dirname = dirname.substring(0, dirname.length-6);
+          } else if (dirname == 'index/') {
+            dirname = '';
+          }
+          requestUrl = DOCUMENTATION_OPTIONS.URL_ROOT + dirname;
+          linkUrl = requestUrl;
+
+        } else {
+          // normal html builders
+          requestUrl = DOCUMENTATION_OPTIONS.URL_ROOT + item[0] + DOCUMENTATION_OPTIONS.FILE_SUFFIX;
+          linkUrl = item[0] + DOCUMENTATION_OPTIONS.LINK_SUFFIX;
+        }
+        listItem.append($('<a/>').attr('href',
+            linkUrl +
+            highlightstring + item[2]).html(item[1]));
+        if (item[3]) {
+          listItem.append($('<span> (' + item[3] + ')</span>'));
+          Search.output.append(listItem);
+          setTimeout(function() {
+            displayNextItem();
+          }, 5);
+        } else if (DOCUMENTATION_OPTIONS.HAS_SOURCE) {
+          $.ajax({url: requestUrl,
+                  dataType: "text",
+                  complete: function(jqxhr, textstatus) {
+                    var data = jqxhr.responseText;
+                    if (data !== '' && data !== undefined) {
+                      listItem.append(Search.makeSearchSummary(data, searchterms, hlterms));
+                    }
+                    Search.output.append(listItem);
+                    setTimeout(function() {
+                      displayNextItem();
+                    }, 5);
+                  }});
+        } else {
+          // no source available, just display title
+          Search.output.append(listItem);
+          setTimeout(function() {
+            displayNextItem();
+          }, 5);
+        }
+      }
+      // search finished, update title and status message
+      else {
+        Search.stopPulse();
+        Search.title.text(_('Search Results'));
+        if (!resultCount)
+          Search.status.text(_('Your search did not match any documents. Please make sure that all words are spelled correctly and that you\'ve selected enough categories.'));
+        else
+            Search.status.text(_('Search finished, found %s page(s) matching the search query.').replace('%s', resultCount));
+        Search.status.fadeIn(500);
+      }
+    }
+    displayNextItem();
   },
 
   /**
    * search for object names
    */
-  performObjectSearch: (object, objectTerms) => {
-    const filenames = Search._index.filenames;
-    const docNames = Search._index.docnames;
-    const objects = Search._index.objects;
-    const objNames = Search._index.objnames;
-    const titles = Search._index.titles;
-
-    const results = [];
-
-    const objectSearchCallback = (prefix, match) => {
-      const name = match[4]
-      const fullname = (prefix ? prefix + "." : "") + name;
-      const fullnameLower = fullname.toLowerCase();
-      if (fullnameLower.indexOf(object) < 0) return;
-
-      let score = 0;
-      const parts = fullnameLower.split(".");
-
-      // check for different match types: exact matches of full name or
-      // "last name" (i.e. last dotted part)
-      if (fullnameLower === object || parts.slice(-1)[0] === object)
-        score += Scorer.objNameMatch;
-      else if (parts.slice(-1)[0].indexOf(object) > -1)
-        score += Scorer.objPartialMatch; // matches in last name
-
-      const objName = objNames[match[1]][2];
-      const title = titles[match[0]];
-
-      // If more than one term searched for, we require other words to be
-      // found in the name/title/description
-      const otherTerms = new Set(objectTerms);
-      otherTerms.delete(object);
-      if (otherTerms.size > 0) {
-        const haystack = `${prefix} ${name} ${objName} ${title}`.toLowerCase();
-        if (
-          [...otherTerms].some((otherTerm) => haystack.indexOf(otherTerm) < 0)
-        )
-          return;
+  performObjectSearch : function(object, otherterms) {
+    var filenames = this._index.filenames;
+    var docnames = this._index.docnames;
+    var objects = this._index.objects;
+    var objnames = this._index.objnames;
+    var titles = this._index.titles;
+
+    var i;
+    var results = [];
+
+    for (var prefix in objects) {
+      for (var name in objects[prefix]) {
+        var fullname = (prefix ? prefix + '.' : '') + name;
+        var fullnameLower = fullname.toLowerCase()
+        if (fullnameLower.indexOf(object) > -1) {
+          var score = 0;
+          var parts = fullnameLower.split('.');
+          // check for different match types: exact matches of full name or
+          // "last name" (i.e. last dotted part)
+          if (fullnameLower == object || parts[parts.length - 1] == object) {
+            score += Scorer.objNameMatch;
+          // matches in last name
+          } else if (parts[parts.length - 1].indexOf(object) > -1) {
+            score += Scorer.objPartialMatch;
+          }
+          var match = objects[prefix][name];
+          var objname = objnames[match[1]][2];
+          var title = titles[match[0]];
+          // If more than one term searched for, we require other words to be
+          // found in the name/title/description
+          if (otherterms.length > 0) {
+            var haystack = (prefix + ' ' + name + ' ' +
+                            objname + ' ' + title).toLowerCase();
+            var allfound = true;
+            for (i = 0; i < otherterms.length; i++) {
+              if (haystack.indexOf(otherterms[i]) == -1) {
+                allfound = false;
+                break;
+              }
+            }
+            if (!allfound) {
+              continue;
+            }
+          }
+          var descr = objname + _(', in ') + title;
+
+          var anchor = match[3];
+          if (anchor === '')
+            anchor = fullname;
+          else if (anchor == '-')
+            anchor = objnames[match[1]][1] + '-' + fullname;
+          // add custom score for some objects according to scorer
+          if (Scorer.objPrio.hasOwnProperty(match[2])) {
+            score += Scorer.objPrio[match[2]];
+          } else {
+            score += Scorer.objPrioDefault;
+          }
+          results.push([docnames[match[0]], fullname, '#'+anchor, descr, score, filenames[match[0]]]);
+        }
       }
+    }
 
-      let anchor = match[3];
-      if (anchor === "") anchor = fullname;
-      else if (anchor === "-") anchor = objNames[match[1]][1] + "-" + fullname;
-
-      const descr = objName + _(", in ") + title;
-
-      // add custom score for some objects according to scorer
-      if (Scorer.objPrio.hasOwnProperty(match[2]))
-        score += Scorer.objPrio[match[2]];
-      else score += Scorer.objPrioDefault;
-
-      results.push([
-        docNames[match[0]],
-        fullname,
-        "#" + anchor,
-        descr,
-        score,
-        filenames[match[0]],
-      ]);
-    };
-    Object.keys(objects).forEach((prefix) =>
-      objects[prefix].forEach((array) =>
-        objectSearchCallback(prefix, array)
-      )
-    );
     return results;
   },
 
+  /**
+   * See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions
+   */
+  escapeRegExp : function(string) {
+    return string.replace(/[.*+\-?^${}()|[\]\\]/g, '\\$&'); // $& means the whole matched string
+  },
+
   /**
    * search for full-text terms in the index
    */
-  performTermsSearch: (searchTerms, excludedTerms) => {
-    // prepare search
-    const terms = Search._index.terms;
-    const titleTerms = Search._index.titleterms;
-    const filenames = Search._index.filenames;
-    const docNames = Search._index.docnames;
-    const titles = Search._index.titles;
+  performTermsSearch : function(searchterms, excluded, terms, titleterms) {
+    var docnames = this._index.docnames;
+    var filenames = this._index.filenames;
+    var titles = this._index.titles;
 
-    const scoreMap = new Map();
-    const fileMap = new Map();
+    var i, j, file;
+    var fileMap = {};
+    var scoreMap = {};
+    var results = [];
 
     // perform the search on the required terms
-    searchTerms.forEach((word) => {
-      const files = [];
-      const arr = [
-        { files: terms[word], score: Scorer.term },
-        { files: titleTerms[word], score: Scorer.title },
+    for (i = 0; i < searchterms.length; i++) {
+      var word = searchterms[i];
+      var files = [];
+      var _o = [
+        {files: terms[word], score: Scorer.term},
+        {files: titleterms[word], score: Scorer.title}
       ];
       // add support for partial matches
       if (word.length > 2) {
-        const escapedWord = _escapeRegExp(word);
-        Object.keys(terms).forEach((term) => {
-          if (term.match(escapedWord) && !terms[word])
-            arr.push({ files: terms[term], score: Scorer.partialTerm });
-        });
-        Object.keys(titleTerms).forEach((term) => {
-          if (term.match(escapedWord) && !titleTerms[word])
-            arr.push({ files: titleTerms[word], score: Scorer.partialTitle });
-        });
+        var word_regex = this.escapeRegExp(word);
+        for (var w in terms) {
+          if (w.match(word_regex) && !terms[word]) {
+            _o.push({files: terms[w], score: Scorer.partialTerm})
+          }
+        }
+        for (var w in titleterms) {
+          if (w.match(word_regex) && !titleterms[word]) {
+              _o.push({files: titleterms[w], score: Scorer.partialTitle})
+          }
+        }
       }
 
       // no match but word was a required one
-      if (arr.every((record) => record.files === undefined)) return;
-
+      if ($u.every(_o, function(o){return o.files === undefined;})) {
+        break;
+      }
       // found search word in contents
-      arr.forEach((record) => {
-        if (record.files === undefined) return;
-
-        let recordFiles = record.files;
-        if (recordFiles.length === undefined) recordFiles = [recordFiles];
-        files.push(...recordFiles);
-
-        // set score for the word in each file
-        recordFiles.forEach((file) => {
-          if (!scoreMap.has(file)) scoreMap.set(file, {});
-          scoreMap.get(file)[word] = record.score;
-        });
+      $u.each(_o, function(o) {
+        var _files = o.files;
+        if (_files === undefined)
+          return
+
+        if (_files.length === undefined)
+          _files = [_files];
+        files = files.concat(_files);
+
+        // set score for the word in each file to Scorer.term
+        for (j = 0; j < _files.length; j++) {
+          file = _files[j];
+          if (!(file in scoreMap))
+            scoreMap[file] = {};
+          scoreMap[file][word] = o.score;
+        }
       });
 
       // create the mapping
-      files.forEach((file) => {
-        if (fileMap.has(file) && fileMap.get(file).indexOf(word) === -1)
-          fileMap.get(file).push(word);
-        else fileMap.set(file, [word]);
-      });
-    });
+      for (j = 0; j < files.length; j++) {
+        file = files[j];
+        if (file in fileMap && fileMap[file].indexOf(word) === -1)
+          fileMap[file].push(word);
+        else
+          fileMap[file] = [word];
+      }
+    }
 
     // now check if the files don't contain excluded terms
-    const results = [];
-    for (const [file, wordList] of fileMap) {
-      // check if all requirements are matched
+    for (file in fileMap) {
+      var valid = true;
 
-      // as search terms with length < 3 are discarded
-      const filteredTermCount = [...searchTerms].filter(
-        (term) => term.length > 2
-      ).length;
+      // check if all requirements are matched
+      var filteredTermCount = // as search terms with length < 3 are discarded: ignore
+        searchterms.filter(function(term){return term.length > 2}).length
       if (
-        wordList.length !== searchTerms.size &&
-        wordList.length !== filteredTermCount
-      )
-        continue;
+        fileMap[file].length != searchterms.length &&
+        fileMap[file].length != filteredTermCount
+      ) continue;
 
       // ensure that none of the excluded terms is in the search result
-      if (
-        [...excludedTerms].some(
-          (term) =>
-            terms[term] === file ||
-            titleTerms[term] === file ||
-            (terms[term] || []).includes(file) ||
-            (titleTerms[term] || []).includes(file)
-        )
-      )
-        break;
+      for (i = 0; i < excluded.length; i++) {
+        if (terms[excluded[i]] == file ||
+            titleterms[excluded[i]] == file ||
+            $u.contains(terms[excluded[i]] || [], file) ||
+            $u.contains(titleterms[excluded[i]] || [], file)) {
+          valid = false;
+          break;
+        }
+      }
 
-      // select one (max) score for the file.
-      const score = Math.max(...wordList.map((w) => scoreMap.get(file)[w]));
-      // add result to the result list
-      results.push([
-        docNames[file],
-        titles[file],
-        "",
-        null,
-        score,
-        filenames[file],
-      ]);
+      // if we have still a valid result we can add it to the result list
+      if (valid) {
+        // select one (max) score for the file.
+        // for better ranking, we should calculate ranking by using words statistics like basic tf-idf...
+        var score = $u.max($u.map(fileMap[file], function(w){return scoreMap[file][w]}));
+        results.push([docnames[file], titles[file], '', null, score, filenames[file]]);
+      }
     }
     return results;
   },
@@ -547,28 +492,31 @@ const Search = {
   /**
    * helper function to return a node containing the
    * search summary for a given text. keywords is a list
-   * of stemmed words.
+   * of stemmed words, hlwords is the list of normal, unstemmed
+   * words. the first one is used to find the occurrence, the
+   * latter for highlighting it.
    */
-  makeSearchSummary: (htmlText, keywords) => {
-    const text = Search.htmlToText(htmlText);
-    if (text === "") return null;
-
-    const textLower = text.toLowerCase();
-    const actualStartPosition = [...keywords]
-      .map((k) => textLower.indexOf(k.toLowerCase()))
-      .filter((i) => i > -1)
-      .slice(-1)[0];
-    const startWithContext = Math.max(actualStartPosition - 120, 0);
-
-    const top = startWithContext === 0 ? "" : "...";
-    const tail = startWithContext + 240 < text.length ? "..." : "";
-
-    let summary = document.createElement("p");
-    summary.classList.add("context");
-    summary.textContent = top + text.substr(startWithContext, 240).trim() + tail;
-
-    return summary;
-  },
+  makeSearchSummary : function(htmlText, keywords, hlwords) {
+    var text = Search.htmlToText(htmlText);
+    var textLower = text.toLowerCase();
+    var start = 0;
+    $.each(keywords, function() {
+      var i = textLower.indexOf(this.toLowerCase());
+      if (i > -1)
+        start = i;
+    });
+    start = Math.max(start - 120, 0);
+    var excerpt = ((start > 0) ? '...' : '') +
+      $.trim(text.substr(start, 240)) +
+      ((start + 240 - text.length) ? '...' : '');
+    var rv = $('<div class="context"></div>').text(excerpt);
+    $.each(hlwords, function() {
+      rv = rv.highlightText(this, 'highlighted');
+    });
+    return rv;
+  }
 };
 
-_ready(Search.init);
+$(document).ready(function() {
+  Search.init();
+});

0.4/_static/sphinx_highlight.js

@@ -1,154 +0,0 @@
-/* Highlighting utilities for Sphinx HTML documentation. */
-"use strict";
-
-const SPHINX_HIGHLIGHT_ENABLED = true
-
-/**
- * highlight a given string on a node by wrapping it in
- * span elements with the given class name.
- */
-const _highlight = (node, addItems, text, className) => {
-  if (node.nodeType === Node.TEXT_NODE) {
-    const val = node.nodeValue;
-    const parent = node.parentNode;
-    const pos = val.toLowerCase().indexOf(text);
-    if (
-      pos >= 0 &&
-      !parent.classList.contains(className) &&
-      !parent.classList.contains("nohighlight")
-    ) {
-      let span;
-
-      const closestNode = parent.closest("body, svg, foreignObject");
-      const isInSVG = closestNode && closestNode.matches("svg");
-      if (isInSVG) {
-        span = document.createElementNS("http://www.w3.org/2000/svg", "tspan");
-      } else {
-        span = document.createElement("span");
-        span.classList.add(className);
-      }
-
-      span.appendChild(document.createTextNode(val.substr(pos, text.length)));
-      const rest = document.createTextNode(val.substr(pos + text.length));
-      parent.insertBefore(
-        span,
-        parent.insertBefore(
-          rest,
-          node.nextSibling
-        )
-      );
-      node.nodeValue = val.substr(0, pos);
-      /* There may be more occurrences of search term in this node. So call this
-       * function recursively on the remaining fragment.
-       */
-      _highlight(rest, addItems, text, className);
-
-      if (isInSVG) {
-        const rect = document.createElementNS(
-          "http://www.w3.org/2000/svg",
-          "rect"
-        );
-        const bbox = parent.getBBox();
-        rect.x.baseVal.value = bbox.x;
-        rect.y.baseVal.value = bbox.y;
-        rect.width.baseVal.value = bbox.width;
-        rect.height.baseVal.value = bbox.height;
-        rect.setAttribute("class", className);
-        addItems.push({ parent: parent, target: rect });
-      }
-    }
-  } else if (node.matches && !node.matches("button, select, textarea")) {
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-  _highlight(thisNode, addItems, text, className);
-  addItems.forEach((obj) =>
-    obj.parent.insertAdjacentElement("beforebegin", obj.target)
-  );
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-
-/**
- * Small JavaScript module for the documentation.
- */
-const SphinxHighlight = {
-
-  /**
-   * highlight the search words provided in localstorage in the text
-   */
-  highlightSearchWords: () => {
-    if (!SPHINX_HIGHLIGHT_ENABLED) return;  // bail if no highlight
-
-    // get and clear terms from localstorage
-    const url = new URL(window.location);
-    const highlight =
-        localStorage.getItem("sphinx_highlight_terms")
-        || url.searchParams.get("highlight")
-        || "";
-    localStorage.removeItem("sphinx_highlight_terms")
-    url.searchParams.delete("highlight");
-    window.history.replaceState({}, "", url);
-
-    // get individual terms from highlight string
-    const terms = highlight.toLowerCase().split(/\s+/).filter(x => x);
-    if (terms.length === 0) return; // nothing to do
-
-    // There should never be more than one element matching "div.body"
-    const divBody = document.querySelectorAll("div.body");
-    const body = divBody.length ? divBody[0] : document.querySelector("body");
-    window.setTimeout(() => {
-      terms.forEach((term) => _highlightText(body, term, "highlighted"));
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-    if (searchBox === null) return;
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-      document
-        .createRange()
-        .createContextualFragment(
-          '<p class="highlight-link">' +
-            '<a href="javascript:SphinxHighlight.hideSearchWords()">' +
-            _("Hide Search Matches") +
-            "</a></p>"
-        )
-    );
-  },
-
-  /**
-   * helper function to hide the search marks again
-   */
-  hideSearchWords: () => {
-    document
-      .querySelectorAll("#searchbox .highlight-link")
-      .forEach((el) => el.remove());
-    document
-      .querySelectorAll("span.highlighted")
-      .forEach((el) => el.classList.remove("highlighted"));
-    localStorage.removeItem("sphinx_highlight_terms")
-  },
-
-  initEscapeListener: () => {
-    // only install a listener if it is really needed
-    if (!DOCUMENTATION_OPTIONS.ENABLE_SEARCH_SHORTCUTS) return;
-
-    document.addEventListener("keydown", (event) => {
-      // bail for input elements
-      if (BLACKLISTED_KEY_CONTROL_ELEMENTS.has(document.activeElement.tagName)) return;
-      // bail with special keys
-      if (event.shiftKey || event.altKey || event.ctrlKey || event.metaKey) return;
-      if (DOCUMENTATION_OPTIONS.ENABLE_SEARCH_SHORTCUTS && (event.key === "Escape")) {
-        SphinxHighlight.hideSearchWords();
-        event.preventDefault();
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-  if (typeof Search === "undefined") SphinxHighlight.highlightSearchWords();
-  SphinxHighlight.initEscapeListener();
-});

0.4/api/collectors/index.html

@@ -1,10 +1,10 @@
+
 <!DOCTYPE html>
 
-<html lang="en" data-content_root="../../">
+<html>
   <head>
     <meta charset="utf-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
-
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>11. Collectors &amp; Extractors &#8212; MIPLearn 0.4</title>
     
   <link href="../../_static/css/theme.css" rel="stylesheet" />
@@ -22,17 +22,18 @@
       
 
     
-    <link rel="stylesheet" type="text/css" href="../../_static/pygments.css?v=362ab14a" />
-    <link rel="stylesheet" type="text/css" href="../../_static/sphinx-book-theme.acff12b8f9c144ce68a297486a2fa670.css?v=b0dfe17c" />
-    <link rel="stylesheet" type="text/css" href="../../_static/custom.css?v=f8244a84" />
+    <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
+    <link rel="stylesheet" href="../../_static/sphinx-book-theme.acff12b8f9c144ce68a297486a2fa670.css" type="text/css" />
+    <link rel="stylesheet" type="text/css" href="../../_static/custom.css" />
     
   <link rel="preload" as="script" href="../../_static/js/index.1c5a1a01449ed65a7b51.js">
 
-    <script src="../../_static/documentation_options.js?v=751a5dd3"></script>
-    <script src="../../_static/doctools.js?v=888ff710"></script>
-    <script src="../../_static/sphinx_highlight.js?v=dc90522c"></script>
+    <script id="documentation_options" data-url_root="../../" src="../../_static/documentation_options.js"></script>
+    <script src="../../_static/jquery.js"></script>
+    <script src="../../_static/underscore.js"></script>
+    <script src="../../_static/doctools.js"></script>
     <script crossorigin="anonymous" integrity="sha256-Ae2Vz/4ePdIu6ZyI/5ZGsYnb+m0JlOmKPjt6XZ9JJkA=" src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.3.4/require.min.js"></script>
-    <script src="../../_static/sphinx-book-theme.12a9622fbb08dcb3a2a40b2c02b83a57.js?v=7c4c3336"></script>
+    <script src="../../_static/sphinx-book-theme.12a9622fbb08dcb3a2a40b2c02b83a57.js"></script>
     <link rel="index" title="Index" href="../../genindex/" />
     <link rel="search" title="Search" href="../../search/" />
     <link rel="next" title="12. Components" href="../components/" />
@@ -64,7 +65,7 @@
   <input type="search" class="form-control" name="q" id="search-input" placeholder="Search the docs ..." aria-label="Search the docs ..." autocomplete="off" >
 </form><nav class="bd-links" id="bd-docs-nav" aria-label="Main navigation">
     <div class="bd-toc-item active">
-        <p class="caption" role="heading">
+        <p class="caption">
  <span class="caption-text">
   Tutorials
  </span>
@@ -91,7 +92,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   User Guide
  </span>
@@ -123,7 +124,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   Python API Reference
  </span>
@@ -225,226 +226,26 @@
   <a class="reference internal nav-link" href="#module-miplearn.classifiers.minprob">
    11.1. miplearn.classifiers.minprob
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.classifiers.minprob.MinProbabilityClassifier">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       MinProbabilityClassifier
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.classifiers.minprob.MinProbabilityClassifier.fit">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         MinProbabilityClassifier.fit()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.classifiers.minprob.MinProbabilityClassifier.predict">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         MinProbabilityClassifier.predict()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.classifiers.minprob.MinProbabilityClassifier.set_fit_request">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         MinProbabilityClassifier.set_fit_request()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.classifiers.minprob.MinProbabilityClassifier.set_predict_request">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         MinProbabilityClassifier.set_predict_request()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-  </ul>
  </li>
  <li class="toc-h2 nav-item toc-entry">
   <a class="reference internal nav-link" href="#module-miplearn.classifiers.singleclass">
    11.2. miplearn.classifiers.singleclass
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.classifiers.singleclass.SingleClassFix">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       SingleClassFix
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.classifiers.singleclass.SingleClassFix.fit">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         SingleClassFix.fit()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.classifiers.singleclass.SingleClassFix.predict">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         SingleClassFix.predict()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.classifiers.singleclass.SingleClassFix.set_fit_request">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         SingleClassFix.set_fit_request()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.classifiers.singleclass.SingleClassFix.set_predict_request">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         SingleClassFix.set_predict_request()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-  </ul>
  </li>
  <li class="toc-h2 nav-item toc-entry">
   <a class="reference internal nav-link" href="#module-miplearn.collectors.basic">
    11.3. miplearn.collectors.basic
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.collectors.basic.BasicCollector">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       BasicCollector
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.collectors.basic.BasicCollector.collect">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         BasicCollector.collect()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-  </ul>
  </li>
  <li class="toc-h2 nav-item toc-entry">
   <a class="reference internal nav-link" href="#module-miplearn.extractors.fields">
    11.4. miplearn.extractors.fields
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.extractors.fields.H5FieldsExtractor">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       H5FieldsExtractor
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.extractors.fields.H5FieldsExtractor.get_constr_features">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         H5FieldsExtractor.get_constr_features()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.extractors.fields.H5FieldsExtractor.get_instance_features">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         H5FieldsExtractor.get_instance_features()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.extractors.fields.H5FieldsExtractor.get_var_features">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         H5FieldsExtractor.get_var_features()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-  </ul>
  </li>
  <li class="toc-h2 nav-item toc-entry">
   <a class="reference internal nav-link" href="#module-miplearn.extractors.AlvLouWeh2017">
    11.5. miplearn.extractors.AlvLouWeh2017
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.extractors.AlvLouWeh2017.AlvLouWeh2017Extractor">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       AlvLouWeh2017Extractor
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.extractors.AlvLouWeh2017.AlvLouWeh2017Extractor.get_constr_features">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         AlvLouWeh2017Extractor.get_constr_features()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.extractors.AlvLouWeh2017.AlvLouWeh2017Extractor.get_instance_features">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         AlvLouWeh2017Extractor.get_instance_features()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.extractors.AlvLouWeh2017.AlvLouWeh2017Extractor.get_var_features">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         AlvLouWeh2017Extractor.get_var_features()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-  </ul>
  </li>
 </ul>
 
@@ -457,32 +258,32 @@
         
               <div>
                 
-  <section id="collectors-extractors">
-<h1><span class="section-number">11. </span>Collectors &amp; Extractors<a class="headerlink" href="#collectors-extractors" title="Link to this heading">¶</a></h1>
-<section id="module-miplearn.classifiers.minprob">
-<span id="miplearn-classifiers-minprob"></span><h2><span class="section-number">11.1. </span>miplearn.classifiers.minprob<a class="headerlink" href="#module-miplearn.classifiers.minprob" title="Link to this heading">¶</a></h2>
+  <div class="section" id="collectors-extractors">
+<h1><span class="section-number">11. </span>Collectors &amp; Extractors<a class="headerlink" href="#collectors-extractors" title="Permalink to this headline">¶</a></h1>
+<div class="section" id="module-miplearn.classifiers.minprob">
+<span id="miplearn-classifiers-minprob"></span><h2><span class="section-number">11.1. </span>miplearn.classifiers.minprob<a class="headerlink" href="#module-miplearn.classifiers.minprob" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.classifiers.minprob.MinProbabilityClassifier">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.classifiers.minprob.</span></span><span class="sig-name descname"><span class="pre">MinProbabilityClassifier</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="pre">base_clf:</span> <span class="pre">~typing.Any,</span> <span class="pre">thresholds:</span> <span class="pre">~typing.List[float],</span> <span class="pre">clone_fn:</span> <span class="pre">~typing.Callable[[~typing.Any],</span> <span class="pre">~typing.Any]</span> <span class="pre">=</span> <span class="pre">&lt;function</span> <span class="pre">clone&gt;</span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.classifiers.minprob.MinProbabilityClassifier" title="Link to this definition">¶</a></dt>
-<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">BaseEstimator</span></code></p>
+<dt id="miplearn.classifiers.minprob.MinProbabilityClassifier">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.classifiers.minprob.</span></code><code class="sig-name descname"><span class="pre">MinProbabilityClassifier</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="pre">base_clf:</span> <span class="pre">Any,</span> <span class="pre">thresholds:</span> <span class="pre">List[float],</span> <span class="pre">clone_fn:</span> <span class="pre">Callable[[Any],</span> <span class="pre">Any]</span> <span class="pre">=</span> <span class="pre">&lt;function</span> <span class="pre">clone&gt;</span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.classifiers.minprob.MinProbabilityClassifier" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">sklearn.base.BaseEstimator</span></code></p>
 <p>Meta-classifier that returns NaN for predictions made by a base classifier that
 have probability below a given threshold. More specifically, this meta-classifier
 calls base_clf.predict_proba and compares the result against the provided
 thresholds. If the probability for one of the classes is above its threshold,
 the meta-classifier returns that prediction. Otherwise, it returns NaN.</p>
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.classifiers.minprob.MinProbabilityClassifier.fit">
-<span class="sig-name descname"><span class="pre">fit</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">x</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">y</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.classifiers.minprob.MinProbabilityClassifier.fit" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.classifiers.minprob.MinProbabilityClassifier.fit">
+<code class="sig-name descname"><span class="pre">fit</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">x</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">y</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.classifiers.minprob.MinProbabilityClassifier.fit" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.classifiers.minprob.MinProbabilityClassifier.predict">
-<span class="sig-name descname"><span class="pre">predict</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">x</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">ndarray</span></span></span><a class="headerlink" href="#miplearn.classifiers.minprob.MinProbabilityClassifier.predict" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.classifiers.minprob.MinProbabilityClassifier.predict">
+<code class="sig-name descname"><span class="pre">predict</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">x</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">numpy.ndarray</span><a class="headerlink" href="#miplearn.classifiers.minprob.MinProbabilityClassifier.predict" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.classifiers.minprob.MinProbabilityClassifier.set_fit_request">
-<span class="sig-name descname"><span class="pre">set_fit_request</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="o"><span class="pre">*</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">x</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">bool</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">str</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">'$UNCHANGED$'</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><a class="reference internal" href="#miplearn.classifiers.minprob.MinProbabilityClassifier" title="miplearn.classifiers.minprob.MinProbabilityClassifier"><span class="pre">MinProbabilityClassifier</span></a></span></span><a class="headerlink" href="#miplearn.classifiers.minprob.MinProbabilityClassifier.set_fit_request" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.classifiers.minprob.MinProbabilityClassifier.set_fit_request">
+<code class="sig-name descname"><span class="pre">set_fit_request</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="o"><span class="pre">*</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">x</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Union</span><span class="p"><span class="pre">[</span></span><span class="pre">bool</span><span class="p"><span class="pre">,</span> </span><span class="pre">None</span><span class="p"><span class="pre">,</span> </span><span class="pre">str</span><span class="p"><span class="pre">]</span></span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">'$UNCHANGED$'</span></span></em><span class="sig-paren">)</span> &#x2192; <a class="reference internal" href="#miplearn.classifiers.minprob.MinProbabilityClassifier" title="miplearn.classifiers.minprob.MinProbabilityClassifier"><span class="pre">miplearn.classifiers.minprob.MinProbabilityClassifier</span></a><a class="headerlink" href="#miplearn.classifiers.minprob.MinProbabilityClassifier.set_fit_request" title="Permalink to this definition">¶</a></dt>
 <dd><p>Request metadata passed to the <code class="docutils literal notranslate"><span class="pre">fit</span></code> method.</p>
 <p>Note that this method is only relevant if
 <code class="docutils literal notranslate"><span class="pre">enable_metadata_routing=True</span></code> (see <code class="xref py py-func docutils literal notranslate"><span class="pre">sklearn.set_config()</span></code>).
@@ -508,21 +309,21 @@ sub-estimator of a meta-estimator, e.g. used inside a
 <code class="xref py py-class docutils literal notranslate"><span class="pre">Pipeline</span></code>. Otherwise it has no effect.</p>
 </div>
 <dl class="field-list simple">
-<dt class="field-odd">Parameters<span class="colon">:</span></dt>
+<dt class="field-odd">Parameters</dt>
 <dd class="field-odd"><p><strong>x</strong> (<em>str</em><em>, </em><em>True</em><em>, </em><em>False</em><em>, or </em><em>None</em><em>,                     </em><em>default=sklearn.utils.metadata_routing.UNCHANGED</em>) – Metadata routing for <code class="docutils literal notranslate"><span class="pre">x</span></code> parameter in <code class="docutils literal notranslate"><span class="pre">fit</span></code>.</p>
 </dd>
-<dt class="field-even">Returns<span class="colon">:</span></dt>
+<dt class="field-even">Returns</dt>
 <dd class="field-even"><p><strong>self</strong> – The updated object.</p>
 </dd>
-<dt class="field-odd">Return type<span class="colon">:</span></dt>
+<dt class="field-odd">Return type</dt>
 <dd class="field-odd"><p>object</p>
 </dd>
 </dl>
 </dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.classifiers.minprob.MinProbabilityClassifier.set_predict_request">
-<span class="sig-name descname"><span class="pre">set_predict_request</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="o"><span class="pre">*</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">x</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">bool</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">str</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">'$UNCHANGED$'</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><a class="reference internal" href="#miplearn.classifiers.minprob.MinProbabilityClassifier" title="miplearn.classifiers.minprob.MinProbabilityClassifier"><span class="pre">MinProbabilityClassifier</span></a></span></span><a class="headerlink" href="#miplearn.classifiers.minprob.MinProbabilityClassifier.set_predict_request" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.classifiers.minprob.MinProbabilityClassifier.set_predict_request">
+<code class="sig-name descname"><span class="pre">set_predict_request</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="o"><span class="pre">*</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">x</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Union</span><span class="p"><span class="pre">[</span></span><span class="pre">bool</span><span class="p"><span class="pre">,</span> </span><span class="pre">None</span><span class="p"><span class="pre">,</span> </span><span class="pre">str</span><span class="p"><span class="pre">]</span></span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">'$UNCHANGED$'</span></span></em><span class="sig-paren">)</span> &#x2192; <a class="reference internal" href="#miplearn.classifiers.minprob.MinProbabilityClassifier" title="miplearn.classifiers.minprob.MinProbabilityClassifier"><span class="pre">miplearn.classifiers.minprob.MinProbabilityClassifier</span></a><a class="headerlink" href="#miplearn.classifiers.minprob.MinProbabilityClassifier.set_predict_request" title="Permalink to this definition">¶</a></dt>
 <dd><p>Request metadata passed to the <code class="docutils literal notranslate"><span class="pre">predict</span></code> method.</p>
 <p>Note that this method is only relevant if
 <code class="docutils literal notranslate"><span class="pre">enable_metadata_routing=True</span></code> (see <code class="xref py py-func docutils literal notranslate"><span class="pre">sklearn.set_config()</span></code>).
@@ -548,13 +349,13 @@ sub-estimator of a meta-estimator, e.g. used inside a
 <code class="xref py py-class docutils literal notranslate"><span class="pre">Pipeline</span></code>. Otherwise it has no effect.</p>
 </div>
 <dl class="field-list simple">
-<dt class="field-odd">Parameters<span class="colon">:</span></dt>
+<dt class="field-odd">Parameters</dt>
 <dd class="field-odd"><p><strong>x</strong> (<em>str</em><em>, </em><em>True</em><em>, </em><em>False</em><em>, or </em><em>None</em><em>,                     </em><em>default=sklearn.utils.metadata_routing.UNCHANGED</em>) – Metadata routing for <code class="docutils literal notranslate"><span class="pre">x</span></code> parameter in <code class="docutils literal notranslate"><span class="pre">predict</span></code>.</p>
 </dd>
-<dt class="field-even">Returns<span class="colon">:</span></dt>
+<dt class="field-even">Returns</dt>
 <dd class="field-even"><p><strong>self</strong> – The updated object.</p>
 </dd>
-<dt class="field-odd">Return type<span class="colon">:</span></dt>
+<dt class="field-odd">Return type</dt>
 <dd class="field-odd"><p>object</p>
 </dd>
 </dl>
@@ -562,31 +363,31 @@ sub-estimator of a meta-estimator, e.g. used inside a
 
 </dd></dl>
 
-</section>
-<section id="module-miplearn.classifiers.singleclass">
-<span id="miplearn-classifiers-singleclass"></span><h2><span class="section-number">11.2. </span>miplearn.classifiers.singleclass<a class="headerlink" href="#module-miplearn.classifiers.singleclass" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="module-miplearn.classifiers.singleclass">
+<span id="miplearn-classifiers-singleclass"></span><h2><span class="section-number">11.2. </span>miplearn.classifiers.singleclass<a class="headerlink" href="#module-miplearn.classifiers.singleclass" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.classifiers.singleclass.SingleClassFix">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.classifiers.singleclass.</span></span><span class="sig-name descname"><span class="pre">SingleClassFix</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">base_clf:</span> <span class="pre">~sklearn.base.BaseEstimator</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">clone_fn:</span> <span class="pre">~typing.Callable</span> <span class="pre">=</span> <span class="pre">&lt;function</span> <span class="pre">clone&gt;</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.classifiers.singleclass.SingleClassFix" title="Link to this definition">¶</a></dt>
-<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">BaseEstimator</span></code></p>
+<dt id="miplearn.classifiers.singleclass.SingleClassFix">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.classifiers.singleclass.</span></code><code class="sig-name descname"><span class="pre">SingleClassFix</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="pre">base_clf:</span> <span class="pre">sklearn.base.BaseEstimator</span></em>, <em class="sig-param"><span class="pre">clone_fn:</span> <span class="pre">Callable</span> <span class="pre">=</span> <span class="pre">&lt;function</span> <span class="pre">clone&gt;</span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.classifiers.singleclass.SingleClassFix" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">sklearn.base.BaseEstimator</span></code></p>
 <p>Some sklearn classifiers, such as logistic regression, have issues with datasets
 that contain a single class. This meta-classifier fixes the issue. If the
 training data contains a single class, this meta-classifier always returns that
 class as a prediction. Otherwise, it fits the provided base classifier,
 and returns its predictions instead.</p>
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.classifiers.singleclass.SingleClassFix.fit">
-<span class="sig-name descname"><span class="pre">fit</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">x</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">y</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.classifiers.singleclass.SingleClassFix.fit" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.classifiers.singleclass.SingleClassFix.fit">
+<code class="sig-name descname"><span class="pre">fit</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">x</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">y</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.classifiers.singleclass.SingleClassFix.fit" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.classifiers.singleclass.SingleClassFix.predict">
-<span class="sig-name descname"><span class="pre">predict</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">x</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">ndarray</span></span></span><a class="headerlink" href="#miplearn.classifiers.singleclass.SingleClassFix.predict" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.classifiers.singleclass.SingleClassFix.predict">
+<code class="sig-name descname"><span class="pre">predict</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">x</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">numpy.ndarray</span><a class="headerlink" href="#miplearn.classifiers.singleclass.SingleClassFix.predict" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.classifiers.singleclass.SingleClassFix.set_fit_request">
-<span class="sig-name descname"><span class="pre">set_fit_request</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="o"><span class="pre">*</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">x</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">bool</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">str</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">'$UNCHANGED$'</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><a class="reference internal" href="#miplearn.classifiers.singleclass.SingleClassFix" title="miplearn.classifiers.singleclass.SingleClassFix"><span class="pre">SingleClassFix</span></a></span></span><a class="headerlink" href="#miplearn.classifiers.singleclass.SingleClassFix.set_fit_request" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.classifiers.singleclass.SingleClassFix.set_fit_request">
+<code class="sig-name descname"><span class="pre">set_fit_request</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="o"><span class="pre">*</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">x</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Union</span><span class="p"><span class="pre">[</span></span><span class="pre">bool</span><span class="p"><span class="pre">,</span> </span><span class="pre">None</span><span class="p"><span class="pre">,</span> </span><span class="pre">str</span><span class="p"><span class="pre">]</span></span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">'$UNCHANGED$'</span></span></em><span class="sig-paren">)</span> &#x2192; <a class="reference internal" href="#miplearn.classifiers.singleclass.SingleClassFix" title="miplearn.classifiers.singleclass.SingleClassFix"><span class="pre">miplearn.classifiers.singleclass.SingleClassFix</span></a><a class="headerlink" href="#miplearn.classifiers.singleclass.SingleClassFix.set_fit_request" title="Permalink to this definition">¶</a></dt>
 <dd><p>Request metadata passed to the <code class="docutils literal notranslate"><span class="pre">fit</span></code> method.</p>
 <p>Note that this method is only relevant if
 <code class="docutils literal notranslate"><span class="pre">enable_metadata_routing=True</span></code> (see <code class="xref py py-func docutils literal notranslate"><span class="pre">sklearn.set_config()</span></code>).
@@ -612,21 +413,21 @@ sub-estimator of a meta-estimator, e.g. used inside a
 <code class="xref py py-class docutils literal notranslate"><span class="pre">Pipeline</span></code>. Otherwise it has no effect.</p>
 </div>
 <dl class="field-list simple">
-<dt class="field-odd">Parameters<span class="colon">:</span></dt>
+<dt class="field-odd">Parameters</dt>
 <dd class="field-odd"><p><strong>x</strong> (<em>str</em><em>, </em><em>True</em><em>, </em><em>False</em><em>, or </em><em>None</em><em>,                     </em><em>default=sklearn.utils.metadata_routing.UNCHANGED</em>) – Metadata routing for <code class="docutils literal notranslate"><span class="pre">x</span></code> parameter in <code class="docutils literal notranslate"><span class="pre">fit</span></code>.</p>
 </dd>
-<dt class="field-even">Returns<span class="colon">:</span></dt>
+<dt class="field-even">Returns</dt>
 <dd class="field-even"><p><strong>self</strong> – The updated object.</p>
 </dd>
-<dt class="field-odd">Return type<span class="colon">:</span></dt>
+<dt class="field-odd">Return type</dt>
 <dd class="field-odd"><p>object</p>
 </dd>
 </dl>
 </dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.classifiers.singleclass.SingleClassFix.set_predict_request">
-<span class="sig-name descname"><span class="pre">set_predict_request</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="o"><span class="pre">*</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">x</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">bool</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">str</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">'$UNCHANGED$'</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><a class="reference internal" href="#miplearn.classifiers.singleclass.SingleClassFix" title="miplearn.classifiers.singleclass.SingleClassFix"><span class="pre">SingleClassFix</span></a></span></span><a class="headerlink" href="#miplearn.classifiers.singleclass.SingleClassFix.set_predict_request" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.classifiers.singleclass.SingleClassFix.set_predict_request">
+<code class="sig-name descname"><span class="pre">set_predict_request</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="o"><span class="pre">*</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">x</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Union</span><span class="p"><span class="pre">[</span></span><span class="pre">bool</span><span class="p"><span class="pre">,</span> </span><span class="pre">None</span><span class="p"><span class="pre">,</span> </span><span class="pre">str</span><span class="p"><span class="pre">]</span></span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">'$UNCHANGED$'</span></span></em><span class="sig-paren">)</span> &#x2192; <a class="reference internal" href="#miplearn.classifiers.singleclass.SingleClassFix" title="miplearn.classifiers.singleclass.SingleClassFix"><span class="pre">miplearn.classifiers.singleclass.SingleClassFix</span></a><a class="headerlink" href="#miplearn.classifiers.singleclass.SingleClassFix.set_predict_request" title="Permalink to this definition">¶</a></dt>
 <dd><p>Request metadata passed to the <code class="docutils literal notranslate"><span class="pre">predict</span></code> method.</p>
 <p>Note that this method is only relevant if
 <code class="docutils literal notranslate"><span class="pre">enable_metadata_routing=True</span></code> (see <code class="xref py py-func docutils literal notranslate"><span class="pre">sklearn.set_config()</span></code>).
@@ -652,13 +453,13 @@ sub-estimator of a meta-estimator, e.g. used inside a
 <code class="xref py py-class docutils literal notranslate"><span class="pre">Pipeline</span></code>. Otherwise it has no effect.</p>
 </div>
 <dl class="field-list simple">
-<dt class="field-odd">Parameters<span class="colon">:</span></dt>
+<dt class="field-odd">Parameters</dt>
 <dd class="field-odd"><p><strong>x</strong> (<em>str</em><em>, </em><em>True</em><em>, </em><em>False</em><em>, or </em><em>None</em><em>,                     </em><em>default=sklearn.utils.metadata_routing.UNCHANGED</em>) – Metadata routing for <code class="docutils literal notranslate"><span class="pre">x</span></code> parameter in <code class="docutils literal notranslate"><span class="pre">predict</span></code>.</p>
 </dd>
-<dt class="field-even">Returns<span class="colon">:</span></dt>
+<dt class="field-even">Returns</dt>
 <dd class="field-even"><p><strong>self</strong> – The updated object.</p>
 </dd>
-<dt class="field-odd">Return type<span class="colon">:</span></dt>
+<dt class="field-odd">Return type</dt>
 <dd class="field-odd"><p>object</p>
 </dd>
 </dl>
@@ -666,64 +467,64 @@ sub-estimator of a meta-estimator, e.g. used inside a
 
 </dd></dl>
 
-</section>
-<section id="module-miplearn.collectors.basic">
-<span id="miplearn-collectors-basic"></span><h2><span class="section-number">11.3. </span>miplearn.collectors.basic<a class="headerlink" href="#module-miplearn.collectors.basic" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="module-miplearn.collectors.basic">
+<span id="miplearn-collectors-basic"></span><h2><span class="section-number">11.3. </span>miplearn.collectors.basic<a class="headerlink" href="#module-miplearn.collectors.basic" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.collectors.basic.BasicCollector">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.collectors.basic.</span></span><span class="sig-name descname"><span class="pre">BasicCollector</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">skip_lp</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">bool</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">write_mps</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">bool</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">True</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.collectors.basic.BasicCollector" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.collectors.basic.BasicCollector">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.collectors.basic.</span></code><code class="sig-name descname"><span class="pre">BasicCollector</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">skip_lp</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">bool</span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">write_mps</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">bool</span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">True</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.collectors.basic.BasicCollector" title="Permalink to this definition">¶</a></dt>
 <dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></p>
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.collectors.basic.BasicCollector.collect">
-<span class="sig-name descname"><span class="pre">collect</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">filenames</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">]</span></span></span></em>, <em class="sig-param"><span class="n"><span class="pre">build_model</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Callable</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">n_jobs</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">int</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">1</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">progress</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">bool</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">verbose</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">bool</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">False</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.collectors.basic.BasicCollector.collect" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.collectors.basic.BasicCollector.collect">
+<code class="sig-name descname"><span class="pre">collect</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">filenames</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">]</span></span></span></em>, <em class="sig-param"><span class="n"><span class="pre">build_model</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Callable</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">n_jobs</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">int</span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">1</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">progress</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">bool</span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">verbose</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">bool</span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">False</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.collectors.basic.BasicCollector.collect" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 </dd></dl>
 
-</section>
-<section id="module-miplearn.extractors.fields">
-<span id="miplearn-extractors-fields"></span><h2><span class="section-number">11.4. </span>miplearn.extractors.fields<a class="headerlink" href="#module-miplearn.extractors.fields" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="module-miplearn.extractors.fields">
+<span id="miplearn-extractors-fields"></span><h2><span class="section-number">11.4. </span>miplearn.extractors.fields<a class="headerlink" href="#module-miplearn.extractors.fields" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.extractors.fields.H5FieldsExtractor">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.extractors.fields.</span></span><span class="sig-name descname"><span class="pre">H5FieldsExtractor</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">instance_fields</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">]</span></span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_fields</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">]</span></span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">constr_fields</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">]</span></span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.extractors.fields.H5FieldsExtractor" title="Link to this definition">¶</a></dt>
-<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">FeaturesExtractor</span></code></p>
+<dt id="miplearn.extractors.fields.H5FieldsExtractor">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.extractors.fields.</span></code><code class="sig-name descname"><span class="pre">H5FieldsExtractor</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">instance_fields</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">]</span></span><span class="p"><span class="pre">]</span></span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_fields</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">]</span></span><span class="p"><span class="pre">]</span></span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">constr_fields</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">]</span></span><span class="p"><span class="pre">]</span></span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.extractors.fields.H5FieldsExtractor" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">miplearn.extractors.abstract.FeaturesExtractor</span></code></p>
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.extractors.fields.H5FieldsExtractor.get_constr_features">
-<span class="sig-name descname"><span class="pre">get_constr_features</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">H5File</span></a></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">ndarray</span></span></span><a class="headerlink" href="#miplearn.extractors.fields.H5FieldsExtractor.get_constr_features" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.extractors.fields.H5FieldsExtractor.get_constr_features">
+<code class="sig-name descname"><span class="pre">get_constr_features</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">miplearn.h5.H5File</span></a></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">numpy.ndarray</span><a class="headerlink" href="#miplearn.extractors.fields.H5FieldsExtractor.get_constr_features" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.extractors.fields.H5FieldsExtractor.get_instance_features">
-<span class="sig-name descname"><span class="pre">get_instance_features</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">H5File</span></a></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">ndarray</span></span></span><a class="headerlink" href="#miplearn.extractors.fields.H5FieldsExtractor.get_instance_features" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.extractors.fields.H5FieldsExtractor.get_instance_features">
+<code class="sig-name descname"><span class="pre">get_instance_features</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">miplearn.h5.H5File</span></a></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">numpy.ndarray</span><a class="headerlink" href="#miplearn.extractors.fields.H5FieldsExtractor.get_instance_features" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.extractors.fields.H5FieldsExtractor.get_var_features">
-<span class="sig-name descname"><span class="pre">get_var_features</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">H5File</span></a></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">ndarray</span></span></span><a class="headerlink" href="#miplearn.extractors.fields.H5FieldsExtractor.get_var_features" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.extractors.fields.H5FieldsExtractor.get_var_features">
+<code class="sig-name descname"><span class="pre">get_var_features</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">miplearn.h5.H5File</span></a></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">numpy.ndarray</span><a class="headerlink" href="#miplearn.extractors.fields.H5FieldsExtractor.get_var_features" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 </dd></dl>
 
-</section>
-<section id="module-miplearn.extractors.AlvLouWeh2017">
-<span id="miplearn-extractors-alvlouweh2017"></span><h2><span class="section-number">11.5. </span>miplearn.extractors.AlvLouWeh2017<a class="headerlink" href="#module-miplearn.extractors.AlvLouWeh2017" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="module-miplearn.extractors.AlvLouWeh2017">
+<span id="miplearn-extractors-alvlouweh2017"></span><h2><span class="section-number">11.5. </span>miplearn.extractors.AlvLouWeh2017<a class="headerlink" href="#module-miplearn.extractors.AlvLouWeh2017" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.extractors.AlvLouWeh2017.AlvLouWeh2017Extractor">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.extractors.AlvLouWeh2017.</span></span><span class="sig-name descname"><span class="pre">AlvLouWeh2017Extractor</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">with_m1</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">bool</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">True</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">with_m2</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">bool</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">True</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">with_m3</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">bool</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">True</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.extractors.AlvLouWeh2017.AlvLouWeh2017Extractor" title="Link to this definition">¶</a></dt>
-<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">FeaturesExtractor</span></code></p>
+<dt id="miplearn.extractors.AlvLouWeh2017.AlvLouWeh2017Extractor">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.extractors.AlvLouWeh2017.</span></code><code class="sig-name descname"><span class="pre">AlvLouWeh2017Extractor</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">with_m1</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">bool</span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">True</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">with_m2</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">bool</span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">True</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">with_m3</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">bool</span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">True</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.extractors.AlvLouWeh2017.AlvLouWeh2017Extractor" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">miplearn.extractors.abstract.FeaturesExtractor</span></code></p>
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.extractors.AlvLouWeh2017.AlvLouWeh2017Extractor.get_constr_features">
-<span class="sig-name descname"><span class="pre">get_constr_features</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">H5File</span></a></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">ndarray</span></span></span><a class="headerlink" href="#miplearn.extractors.AlvLouWeh2017.AlvLouWeh2017Extractor.get_constr_features" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.extractors.AlvLouWeh2017.AlvLouWeh2017Extractor.get_constr_features">
+<code class="sig-name descname"><span class="pre">get_constr_features</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">miplearn.h5.H5File</span></a></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">numpy.ndarray</span><a class="headerlink" href="#miplearn.extractors.AlvLouWeh2017.AlvLouWeh2017Extractor.get_constr_features" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.extractors.AlvLouWeh2017.AlvLouWeh2017Extractor.get_instance_features">
-<span class="sig-name descname"><span class="pre">get_instance_features</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">H5File</span></a></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">ndarray</span></span></span><a class="headerlink" href="#miplearn.extractors.AlvLouWeh2017.AlvLouWeh2017Extractor.get_instance_features" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.extractors.AlvLouWeh2017.AlvLouWeh2017Extractor.get_instance_features">
+<code class="sig-name descname"><span class="pre">get_instance_features</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">miplearn.h5.H5File</span></a></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">numpy.ndarray</span><a class="headerlink" href="#miplearn.extractors.AlvLouWeh2017.AlvLouWeh2017Extractor.get_instance_features" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.extractors.AlvLouWeh2017.AlvLouWeh2017Extractor.get_var_features">
-<span class="sig-name descname"><span class="pre">get_var_features</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">H5File</span></a></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">ndarray</span></span></span><a class="headerlink" href="#miplearn.extractors.AlvLouWeh2017.AlvLouWeh2017Extractor.get_var_features" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.extractors.AlvLouWeh2017.AlvLouWeh2017Extractor.get_var_features">
+<code class="sig-name descname"><span class="pre">get_var_features</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">miplearn.h5.H5File</span></a></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">numpy.ndarray</span><a class="headerlink" href="#miplearn.extractors.AlvLouWeh2017.AlvLouWeh2017Extractor.get_var_features" title="Permalink to this definition">¶</a></dt>
 <dd><dl class="simple">
 <dt>Computes static variable features described in:</dt><dd><p>Alvarez, A. M., Louveaux, Q., &amp; Wehenkel, L. (2017). A machine learning-based
 approximation of strong branching. INFORMS Journal on Computing, 29(1),
@@ -734,8 +535,8 @@ approximation of strong branching. INFORMS Journal on Computing, 29(1),
 
 </dd></dl>
 
-</section>
-</section>
+</div>
+</div>
 
 
               </div>

0.4/api/components/index.html

@@ -1,10 +1,10 @@
+
 <!DOCTYPE html>
 
-<html lang="en" data-content_root="../../">
+<html>
   <head>
     <meta charset="utf-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
-
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>12. Components &#8212; MIPLearn 0.4</title>
     
   <link href="../../_static/css/theme.css" rel="stylesheet" />
@@ -22,17 +22,18 @@
       
 
     
-    <link rel="stylesheet" type="text/css" href="../../_static/pygments.css?v=362ab14a" />
-    <link rel="stylesheet" type="text/css" href="../../_static/sphinx-book-theme.acff12b8f9c144ce68a297486a2fa670.css?v=b0dfe17c" />
-    <link rel="stylesheet" type="text/css" href="../../_static/custom.css?v=f8244a84" />
+    <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
+    <link rel="stylesheet" href="../../_static/sphinx-book-theme.acff12b8f9c144ce68a297486a2fa670.css" type="text/css" />
+    <link rel="stylesheet" type="text/css" href="../../_static/custom.css" />
     
   <link rel="preload" as="script" href="../../_static/js/index.1c5a1a01449ed65a7b51.js">
 
-    <script src="../../_static/documentation_options.js?v=751a5dd3"></script>
-    <script src="../../_static/doctools.js?v=888ff710"></script>
-    <script src="../../_static/sphinx_highlight.js?v=dc90522c"></script>
+    <script id="documentation_options" data-url_root="../../" src="../../_static/documentation_options.js"></script>
+    <script src="../../_static/jquery.js"></script>
+    <script src="../../_static/underscore.js"></script>
+    <script src="../../_static/doctools.js"></script>
     <script crossorigin="anonymous" integrity="sha256-Ae2Vz/4ePdIu6ZyI/5ZGsYnb+m0JlOmKPjt6XZ9JJkA=" src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.3.4/require.min.js"></script>
-    <script src="../../_static/sphinx-book-theme.12a9622fbb08dcb3a2a40b2c02b83a57.js?v=7c4c3336"></script>
+    <script src="../../_static/sphinx-book-theme.12a9622fbb08dcb3a2a40b2c02b83a57.js"></script>
     <link rel="index" title="Index" href="../../genindex/" />
     <link rel="search" title="Search" href="../../search/" />
     <link rel="next" title="13. Solvers" href="../solvers/" />
@@ -64,7 +65,7 @@
   <input type="search" class="form-control" name="q" id="search-input" placeholder="Search the docs ..." aria-label="Search the docs ..." autocomplete="off" >
 </form><nav class="bd-links" id="bd-docs-nav" aria-label="Main navigation">
     <div class="bd-toc-item active">
-        <p class="caption" role="heading">
+        <p class="caption">
  <span class="caption-text">
   Tutorials
  </span>
@@ -91,7 +92,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   User Guide
  </span>
@@ -123,7 +124,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   Python API Reference
  </span>
@@ -225,292 +226,26 @@
   <a class="reference internal nav-link" href="#module-miplearn.components.primal.actions">
    12.1. miplearn.components.primal.actions
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.components.primal.actions.EnforceProximity">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       EnforceProximity
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.components.primal.actions.EnforceProximity.perform">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         EnforceProximity.perform()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.components.primal.actions.FixVariables">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       FixVariables
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.components.primal.actions.FixVariables.perform">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         FixVariables.perform()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.components.primal.actions.PrimalComponentAction">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       PrimalComponentAction
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.components.primal.actions.PrimalComponentAction.perform">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         PrimalComponentAction.perform()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.components.primal.actions.SetWarmStart">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       SetWarmStart
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.components.primal.actions.SetWarmStart.perform">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         SetWarmStart.perform()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-  </ul>
  </li>
  <li class="toc-h2 nav-item toc-entry">
   <a class="reference internal nav-link" href="#module-miplearn.components.primal.expert">
    12.2. miplearn.components.primal.expert
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.components.primal.expert.ExpertPrimalComponent">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       ExpertPrimalComponent
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.components.primal.expert.ExpertPrimalComponent.before_mip">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         ExpertPrimalComponent.before_mip()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.components.primal.expert.ExpertPrimalComponent.fit">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         ExpertPrimalComponent.fit()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-  </ul>
  </li>
  <li class="toc-h2 nav-item toc-entry">
   <a class="reference internal nav-link" href="#module-miplearn.components.primal.indep">
    12.3. miplearn.components.primal.indep
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.components.primal.indep.IndependentVarsPrimalComponent">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       IndependentVarsPrimalComponent
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.components.primal.indep.IndependentVarsPrimalComponent.before_mip">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         IndependentVarsPrimalComponent.before_mip()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.components.primal.indep.IndependentVarsPrimalComponent.fit">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         IndependentVarsPrimalComponent.fit()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-  </ul>
  </li>
  <li class="toc-h2 nav-item toc-entry">
   <a class="reference internal nav-link" href="#module-miplearn.components.primal.joint">
    12.4. miplearn.components.primal.joint
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.components.primal.joint.JointVarsPrimalComponent">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       JointVarsPrimalComponent
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.components.primal.joint.JointVarsPrimalComponent.before_mip">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         JointVarsPrimalComponent.before_mip()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.components.primal.joint.JointVarsPrimalComponent.fit">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         JointVarsPrimalComponent.fit()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-  </ul>
  </li>
  <li class="toc-h2 nav-item toc-entry">
   <a class="reference internal nav-link" href="#module-miplearn.components.primal.mem">
    12.5. miplearn.components.primal.mem
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.components.primal.mem.MemorizingPrimalComponent">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       MemorizingPrimalComponent
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.components.primal.mem.MemorizingPrimalComponent.before_mip">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         MemorizingPrimalComponent.before_mip()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.components.primal.mem.MemorizingPrimalComponent.fit">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         MemorizingPrimalComponent.fit()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.components.primal.mem.MergeTopSolutions">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       MergeTopSolutions
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.components.primal.mem.MergeTopSolutions.construct">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         MergeTopSolutions.construct()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.components.primal.mem.SelectTopSolutions">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       SelectTopSolutions
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.components.primal.mem.SelectTopSolutions.construct">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         SelectTopSolutions.construct()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.components.primal.mem.SolutionConstructor">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       SolutionConstructor
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.components.primal.mem.SolutionConstructor.construct">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         SolutionConstructor.construct()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-  </ul>
  </li>
 </ul>
 
@@ -523,138 +258,138 @@
         
               <div>
                 
-  <section id="components">
-<h1><span class="section-number">12. </span>Components<a class="headerlink" href="#components" title="Link to this heading">¶</a></h1>
-<section id="module-miplearn.components.primal.actions">
-<span id="miplearn-components-primal-actions"></span><h2><span class="section-number">12.1. </span>miplearn.components.primal.actions<a class="headerlink" href="#module-miplearn.components.primal.actions" title="Link to this heading">¶</a></h2>
+  <div class="section" id="components">
+<h1><span class="section-number">12. </span>Components<a class="headerlink" href="#components" title="Permalink to this headline">¶</a></h1>
+<div class="section" id="module-miplearn.components.primal.actions">
+<span id="miplearn-components-primal-actions"></span><h2><span class="section-number">12.1. </span>miplearn.components.primal.actions<a class="headerlink" href="#module-miplearn.components.primal.actions" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.components.primal.actions.EnforceProximity">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.components.primal.actions.</span></span><span class="sig-name descname"><span class="pre">EnforceProximity</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">tol</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">float</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.components.primal.actions.EnforceProximity" title="Link to this definition">¶</a></dt>
-<dd><p>Bases: <a class="reference internal" href="#miplearn.components.primal.actions.PrimalComponentAction" title="miplearn.components.primal.actions.PrimalComponentAction"><code class="xref py py-class docutils literal notranslate"><span class="pre">PrimalComponentAction</span></code></a></p>
+<dt id="miplearn.components.primal.actions.EnforceProximity">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.components.primal.actions.</span></code><code class="sig-name descname"><span class="pre">EnforceProximity</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">tol</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">float</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.components.primal.actions.EnforceProximity" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a class="reference internal" href="#miplearn.components.primal.actions.PrimalComponentAction" title="miplearn.components.primal.actions.PrimalComponentAction"><code class="xref py py-class docutils literal notranslate"><span class="pre">miplearn.components.primal.actions.PrimalComponentAction</span></code></a></p>
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.components.primal.actions.EnforceProximity.perform">
-<span class="sig-name descname"><span class="pre">perform</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">model</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../solvers/#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">AbstractModel</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_names</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_values</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Dict</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.components.primal.actions.EnforceProximity.perform" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.components.primal.actions.EnforceProximity.perform">
+<code class="sig-name descname"><span class="pre">perform</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">model</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="../solvers/#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">miplearn.solvers.abstract.AbstractModel</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_names</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_values</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Dict</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.components.primal.actions.EnforceProximity.perform" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 </dd></dl>
 
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.components.primal.actions.FixVariables">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.components.primal.actions.</span></span><span class="sig-name descname"><span class="pre">FixVariables</span></span><a class="headerlink" href="#miplearn.components.primal.actions.FixVariables" title="Link to this definition">¶</a></dt>
-<dd><p>Bases: <a class="reference internal" href="#miplearn.components.primal.actions.PrimalComponentAction" title="miplearn.components.primal.actions.PrimalComponentAction"><code class="xref py py-class docutils literal notranslate"><span class="pre">PrimalComponentAction</span></code></a></p>
+<dt id="miplearn.components.primal.actions.FixVariables">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.components.primal.actions.</span></code><code class="sig-name descname"><span class="pre">FixVariables</span></code><a class="headerlink" href="#miplearn.components.primal.actions.FixVariables" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a class="reference internal" href="#miplearn.components.primal.actions.PrimalComponentAction" title="miplearn.components.primal.actions.PrimalComponentAction"><code class="xref py py-class docutils literal notranslate"><span class="pre">miplearn.components.primal.actions.PrimalComponentAction</span></code></a></p>
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.components.primal.actions.FixVariables.perform">
-<span class="sig-name descname"><span class="pre">perform</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">model</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../solvers/#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">AbstractModel</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_names</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_values</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Dict</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.components.primal.actions.FixVariables.perform" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.components.primal.actions.FixVariables.perform">
+<code class="sig-name descname"><span class="pre">perform</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">model</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="../solvers/#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">miplearn.solvers.abstract.AbstractModel</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_names</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_values</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Dict</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.components.primal.actions.FixVariables.perform" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 </dd></dl>
 
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.components.primal.actions.PrimalComponentAction">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.components.primal.actions.</span></span><span class="sig-name descname"><span class="pre">PrimalComponentAction</span></span><a class="headerlink" href="#miplearn.components.primal.actions.PrimalComponentAction" title="Link to this definition">¶</a></dt>
-<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">ABC</span></code></p>
+<dt id="miplearn.components.primal.actions.PrimalComponentAction">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.components.primal.actions.</span></code><code class="sig-name descname"><span class="pre">PrimalComponentAction</span></code><a class="headerlink" href="#miplearn.components.primal.actions.PrimalComponentAction" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">abc.ABC</span></code></p>
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.components.primal.actions.PrimalComponentAction.perform">
-<em class="property"><span class="pre">abstract</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">perform</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">model</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../solvers/#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">AbstractModel</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_names</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_values</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Dict</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.components.primal.actions.PrimalComponentAction.perform" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.components.primal.actions.PrimalComponentAction.perform">
+<em class="property"><span class="pre">abstract</span> </em><code class="sig-name descname"><span class="pre">perform</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">model</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="../solvers/#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">miplearn.solvers.abstract.AbstractModel</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_names</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_values</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Dict</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.components.primal.actions.PrimalComponentAction.perform" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 </dd></dl>
 
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.components.primal.actions.SetWarmStart">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.components.primal.actions.</span></span><span class="sig-name descname"><span class="pre">SetWarmStart</span></span><a class="headerlink" href="#miplearn.components.primal.actions.SetWarmStart" title="Link to this definition">¶</a></dt>
-<dd><p>Bases: <a class="reference internal" href="#miplearn.components.primal.actions.PrimalComponentAction" title="miplearn.components.primal.actions.PrimalComponentAction"><code class="xref py py-class docutils literal notranslate"><span class="pre">PrimalComponentAction</span></code></a></p>
+<dt id="miplearn.components.primal.actions.SetWarmStart">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.components.primal.actions.</span></code><code class="sig-name descname"><span class="pre">SetWarmStart</span></code><a class="headerlink" href="#miplearn.components.primal.actions.SetWarmStart" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a class="reference internal" href="#miplearn.components.primal.actions.PrimalComponentAction" title="miplearn.components.primal.actions.PrimalComponentAction"><code class="xref py py-class docutils literal notranslate"><span class="pre">miplearn.components.primal.actions.PrimalComponentAction</span></code></a></p>
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.components.primal.actions.SetWarmStart.perform">
-<span class="sig-name descname"><span class="pre">perform</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">model</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../solvers/#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">AbstractModel</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_names</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_values</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Dict</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.components.primal.actions.SetWarmStart.perform" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.components.primal.actions.SetWarmStart.perform">
+<code class="sig-name descname"><span class="pre">perform</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">model</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="../solvers/#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">miplearn.solvers.abstract.AbstractModel</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_names</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_values</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Dict</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.components.primal.actions.SetWarmStart.perform" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 </dd></dl>
 
-</section>
-<section id="module-miplearn.components.primal.expert">
-<span id="miplearn-components-primal-expert"></span><h2><span class="section-number">12.2. </span>miplearn.components.primal.expert<a class="headerlink" href="#module-miplearn.components.primal.expert" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="module-miplearn.components.primal.expert">
+<span id="miplearn-components-primal-expert"></span><h2><span class="section-number">12.2. </span>miplearn.components.primal.expert<a class="headerlink" href="#module-miplearn.components.primal.expert" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.components.primal.expert.ExpertPrimalComponent">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.components.primal.expert.</span></span><span class="sig-name descname"><span class="pre">ExpertPrimalComponent</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">action</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="#miplearn.components.primal.actions.PrimalComponentAction" title="miplearn.components.primal.actions.PrimalComponentAction"><span class="pre">PrimalComponentAction</span></a></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.components.primal.expert.ExpertPrimalComponent" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.components.primal.expert.ExpertPrimalComponent">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.components.primal.expert.</span></code><code class="sig-name descname"><span class="pre">ExpertPrimalComponent</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">action</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="#miplearn.components.primal.actions.PrimalComponentAction" title="miplearn.components.primal.actions.PrimalComponentAction"><span class="pre">miplearn.components.primal.actions.PrimalComponentAction</span></a></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.components.primal.expert.ExpertPrimalComponent" title="Permalink to this definition">¶</a></dt>
 <dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></p>
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.components.primal.expert.ExpertPrimalComponent.before_mip">
-<span class="sig-name descname"><span class="pre">before_mip</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">test_h5</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">model</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../solvers/#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">AbstractModel</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Dict</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">,</span></span><span class="w"> </span><span class="pre">Any</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.components.primal.expert.ExpertPrimalComponent.before_mip" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.components.primal.expert.ExpertPrimalComponent.before_mip">
+<code class="sig-name descname"><span class="pre">before_mip</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">test_h5</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">str</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">model</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="../solvers/#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">miplearn.solvers.abstract.AbstractModel</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Dict</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">,</span> </span><span class="pre">Any</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.components.primal.expert.ExpertPrimalComponent.before_mip" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.components.primal.expert.ExpertPrimalComponent.fit">
-<span class="sig-name descname"><span class="pre">fit</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">train_h5</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.components.primal.expert.ExpertPrimalComponent.fit" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.components.primal.expert.ExpertPrimalComponent.fit">
+<code class="sig-name descname"><span class="pre">fit</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">train_h5</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.components.primal.expert.ExpertPrimalComponent.fit" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 </dd></dl>
 
-</section>
-<section id="module-miplearn.components.primal.indep">
-<span id="miplearn-components-primal-indep"></span><h2><span class="section-number">12.3. </span>miplearn.components.primal.indep<a class="headerlink" href="#module-miplearn.components.primal.indep" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="module-miplearn.components.primal.indep">
+<span id="miplearn-components-primal-indep"></span><h2><span class="section-number">12.3. </span>miplearn.components.primal.indep<a class="headerlink" href="#module-miplearn.components.primal.indep" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.components.primal.indep.IndependentVarsPrimalComponent">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.components.primal.indep.</span></span><span class="sig-name descname"><span class="pre">IndependentVarsPrimalComponent</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="pre">base_clf:</span> <span class="pre">~typing.Any,</span> <span class="pre">extractor:</span> <span class="pre">~miplearn.extractors.abstract.FeaturesExtractor,</span> <span class="pre">action:</span> <span class="pre">~miplearn.components.primal.actions.PrimalComponentAction,</span> <span class="pre">clone_fn:</span> <span class="pre">~typing.Callable[[~typing.Any],</span> <span class="pre">~typing.Any]</span> <span class="pre">=</span> <span class="pre">&lt;function</span> <span class="pre">clone&gt;</span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.components.primal.indep.IndependentVarsPrimalComponent" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.components.primal.indep.IndependentVarsPrimalComponent">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.components.primal.indep.</span></code><code class="sig-name descname"><span class="pre">IndependentVarsPrimalComponent</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="pre">base_clf:</span> <span class="pre">Any,</span> <span class="pre">extractor:</span> <span class="pre">miplearn.extractors.abstract.FeaturesExtractor,</span> <span class="pre">action:</span> <span class="pre">miplearn.components.primal.actions.PrimalComponentAction,</span> <span class="pre">clone_fn:</span> <span class="pre">Callable[[Any],</span> <span class="pre">Any]</span> <span class="pre">=</span> <span class="pre">&lt;function</span> <span class="pre">clone&gt;</span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.components.primal.indep.IndependentVarsPrimalComponent" title="Permalink to this definition">¶</a></dt>
 <dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></p>
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.components.primal.indep.IndependentVarsPrimalComponent.before_mip">
-<span class="sig-name descname"><span class="pre">before_mip</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">test_h5</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">model</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../solvers/#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">AbstractModel</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Dict</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">,</span></span><span class="w"> </span><span class="pre">Any</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.components.primal.indep.IndependentVarsPrimalComponent.before_mip" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.components.primal.indep.IndependentVarsPrimalComponent.before_mip">
+<code class="sig-name descname"><span class="pre">before_mip</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">test_h5</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">str</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">model</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="../solvers/#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">miplearn.solvers.abstract.AbstractModel</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Dict</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">,</span> </span><span class="pre">Any</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.components.primal.indep.IndependentVarsPrimalComponent.before_mip" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.components.primal.indep.IndependentVarsPrimalComponent.fit">
-<span class="sig-name descname"><span class="pre">fit</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">train_h5</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.components.primal.indep.IndependentVarsPrimalComponent.fit" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.components.primal.indep.IndependentVarsPrimalComponent.fit">
+<code class="sig-name descname"><span class="pre">fit</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">train_h5</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.components.primal.indep.IndependentVarsPrimalComponent.fit" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 </dd></dl>
 
-</section>
-<section id="module-miplearn.components.primal.joint">
-<span id="miplearn-components-primal-joint"></span><h2><span class="section-number">12.4. </span>miplearn.components.primal.joint<a class="headerlink" href="#module-miplearn.components.primal.joint" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="module-miplearn.components.primal.joint">
+<span id="miplearn-components-primal-joint"></span><h2><span class="section-number">12.4. </span>miplearn.components.primal.joint<a class="headerlink" href="#module-miplearn.components.primal.joint" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.components.primal.joint.JointVarsPrimalComponent">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.components.primal.joint.</span></span><span class="sig-name descname"><span class="pre">JointVarsPrimalComponent</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">clf</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Any</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">extractor</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">FeaturesExtractor</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">action</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="#miplearn.components.primal.actions.PrimalComponentAction" title="miplearn.components.primal.actions.PrimalComponentAction"><span class="pre">PrimalComponentAction</span></a></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.components.primal.joint.JointVarsPrimalComponent" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.components.primal.joint.JointVarsPrimalComponent">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.components.primal.joint.</span></code><code class="sig-name descname"><span class="pre">JointVarsPrimalComponent</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">clf</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Any</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">extractor</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">miplearn.extractors.abstract.FeaturesExtractor</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">action</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="#miplearn.components.primal.actions.PrimalComponentAction" title="miplearn.components.primal.actions.PrimalComponentAction"><span class="pre">miplearn.components.primal.actions.PrimalComponentAction</span></a></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.components.primal.joint.JointVarsPrimalComponent" title="Permalink to this definition">¶</a></dt>
 <dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></p>
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.components.primal.joint.JointVarsPrimalComponent.before_mip">
-<span class="sig-name descname"><span class="pre">before_mip</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">test_h5</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">model</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../solvers/#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">AbstractModel</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Dict</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">,</span></span><span class="w"> </span><span class="pre">Any</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.components.primal.joint.JointVarsPrimalComponent.before_mip" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.components.primal.joint.JointVarsPrimalComponent.before_mip">
+<code class="sig-name descname"><span class="pre">before_mip</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">test_h5</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">str</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">model</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="../solvers/#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">miplearn.solvers.abstract.AbstractModel</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Dict</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">,</span> </span><span class="pre">Any</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.components.primal.joint.JointVarsPrimalComponent.before_mip" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.components.primal.joint.JointVarsPrimalComponent.fit">
-<span class="sig-name descname"><span class="pre">fit</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">train_h5</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.components.primal.joint.JointVarsPrimalComponent.fit" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.components.primal.joint.JointVarsPrimalComponent.fit">
+<code class="sig-name descname"><span class="pre">fit</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">train_h5</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.components.primal.joint.JointVarsPrimalComponent.fit" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 </dd></dl>
 
-</section>
-<section id="module-miplearn.components.primal.mem">
-<span id="miplearn-components-primal-mem"></span><h2><span class="section-number">12.5. </span>miplearn.components.primal.mem<a class="headerlink" href="#module-miplearn.components.primal.mem" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="module-miplearn.components.primal.mem">
+<span id="miplearn-components-primal-mem"></span><h2><span class="section-number">12.5. </span>miplearn.components.primal.mem<a class="headerlink" href="#module-miplearn.components.primal.mem" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.components.primal.mem.MemorizingPrimalComponent">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.components.primal.mem.</span></span><span class="sig-name descname"><span class="pre">MemorizingPrimalComponent</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">clf</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Any</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">extractor</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">FeaturesExtractor</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">constructor</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="#miplearn.components.primal.mem.SolutionConstructor" title="miplearn.components.primal.mem.SolutionConstructor"><span class="pre">SolutionConstructor</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">action</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="#miplearn.components.primal.actions.PrimalComponentAction" title="miplearn.components.primal.actions.PrimalComponentAction"><span class="pre">PrimalComponentAction</span></a></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.components.primal.mem.MemorizingPrimalComponent" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.components.primal.mem.MemorizingPrimalComponent">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.components.primal.mem.</span></code><code class="sig-name descname"><span class="pre">MemorizingPrimalComponent</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">clf</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Any</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">extractor</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">miplearn.extractors.abstract.FeaturesExtractor</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">constructor</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="#miplearn.components.primal.mem.SolutionConstructor" title="miplearn.components.primal.mem.SolutionConstructor"><span class="pre">miplearn.components.primal.mem.SolutionConstructor</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">action</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="#miplearn.components.primal.actions.PrimalComponentAction" title="miplearn.components.primal.actions.PrimalComponentAction"><span class="pre">miplearn.components.primal.actions.PrimalComponentAction</span></a></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.components.primal.mem.MemorizingPrimalComponent" title="Permalink to this definition">¶</a></dt>
 <dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></p>
 <p>Component that memorizes all solutions seen during training, then fits a
 single classifier to predict which of the memorized solutions should be
 provided to the solver. Optionally combines multiple memorized solutions
 into a single, partial one.</p>
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.components.primal.mem.MemorizingPrimalComponent.before_mip">
-<span class="sig-name descname"><span class="pre">before_mip</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">test_h5</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">model</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../solvers/#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">AbstractModel</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Dict</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">,</span></span><span class="w"> </span><span class="pre">Any</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.components.primal.mem.MemorizingPrimalComponent.before_mip" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.components.primal.mem.MemorizingPrimalComponent.before_mip">
+<code class="sig-name descname"><span class="pre">before_mip</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">test_h5</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">str</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">model</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="../solvers/#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">miplearn.solvers.abstract.AbstractModel</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Dict</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">,</span> </span><span class="pre">Any</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.components.primal.mem.MemorizingPrimalComponent.before_mip" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.components.primal.mem.MemorizingPrimalComponent.fit">
-<span class="sig-name descname"><span class="pre">fit</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">train_h5</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.components.primal.mem.MemorizingPrimalComponent.fit" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.components.primal.mem.MemorizingPrimalComponent.fit">
+<code class="sig-name descname"><span class="pre">fit</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">train_h5</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.components.primal.mem.MemorizingPrimalComponent.fit" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 </dd></dl>
 
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.components.primal.mem.MergeTopSolutions">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.components.primal.mem.</span></span><span class="sig-name descname"><span class="pre">MergeTopSolutions</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">k</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">int</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">thresholds</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">float</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.components.primal.mem.MergeTopSolutions" title="Link to this definition">¶</a></dt>
-<dd><p>Bases: <a class="reference internal" href="#miplearn.components.primal.mem.SolutionConstructor" title="miplearn.components.primal.mem.SolutionConstructor"><code class="xref py py-class docutils literal notranslate"><span class="pre">SolutionConstructor</span></code></a></p>
+<dt id="miplearn.components.primal.mem.MergeTopSolutions">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.components.primal.mem.</span></code><code class="sig-name descname"><span class="pre">MergeTopSolutions</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">k</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">int</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">thresholds</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">float</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.components.primal.mem.MergeTopSolutions" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a class="reference internal" href="#miplearn.components.primal.mem.SolutionConstructor" title="miplearn.components.primal.mem.SolutionConstructor"><code class="xref py py-class docutils literal notranslate"><span class="pre">miplearn.components.primal.mem.SolutionConstructor</span></code></a></p>
 <p>Warm start construction strategy that first selects the top k solutions,
 then merges them into a single solution.</p>
 <p>To merge the solutions, the strategy first computes the mean optimal value of each
@@ -662,37 +397,37 @@ decision variable, then: (i) sets the variable to zero if the mean is below
 thresholds[0]; (ii) sets the variable to one if the mean is above thresholds[1];
 (iii) leaves the variable free otherwise.</p>
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.components.primal.mem.MergeTopSolutions.construct">
-<span class="sig-name descname"><span class="pre">construct</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">y_proba</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">solutions</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">ndarray</span></span></span><a class="headerlink" href="#miplearn.components.primal.mem.MergeTopSolutions.construct" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.components.primal.mem.MergeTopSolutions.construct">
+<code class="sig-name descname"><span class="pre">construct</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">y_proba</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">solutions</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">numpy.ndarray</span><a class="headerlink" href="#miplearn.components.primal.mem.MergeTopSolutions.construct" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 </dd></dl>
 
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.components.primal.mem.SelectTopSolutions">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.components.primal.mem.</span></span><span class="sig-name descname"><span class="pre">SelectTopSolutions</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">k</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">int</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.components.primal.mem.SelectTopSolutions" title="Link to this definition">¶</a></dt>
-<dd><p>Bases: <a class="reference internal" href="#miplearn.components.primal.mem.SolutionConstructor" title="miplearn.components.primal.mem.SolutionConstructor"><code class="xref py py-class docutils literal notranslate"><span class="pre">SolutionConstructor</span></code></a></p>
+<dt id="miplearn.components.primal.mem.SelectTopSolutions">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.components.primal.mem.</span></code><code class="sig-name descname"><span class="pre">SelectTopSolutions</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">k</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">int</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.components.primal.mem.SelectTopSolutions" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a class="reference internal" href="#miplearn.components.primal.mem.SolutionConstructor" title="miplearn.components.primal.mem.SolutionConstructor"><code class="xref py py-class docutils literal notranslate"><span class="pre">miplearn.components.primal.mem.SolutionConstructor</span></code></a></p>
 <p>Warm start construction strategy that selects and returns the top k solutions.</p>
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.components.primal.mem.SelectTopSolutions.construct">
-<span class="sig-name descname"><span class="pre">construct</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">y_proba</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">solutions</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">ndarray</span></span></span><a class="headerlink" href="#miplearn.components.primal.mem.SelectTopSolutions.construct" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.components.primal.mem.SelectTopSolutions.construct">
+<code class="sig-name descname"><span class="pre">construct</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">y_proba</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">solutions</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">numpy.ndarray</span><a class="headerlink" href="#miplearn.components.primal.mem.SelectTopSolutions.construct" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 </dd></dl>
 
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.components.primal.mem.SolutionConstructor">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.components.primal.mem.</span></span><span class="sig-name descname"><span class="pre">SolutionConstructor</span></span><a class="headerlink" href="#miplearn.components.primal.mem.SolutionConstructor" title="Link to this definition">¶</a></dt>
-<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">ABC</span></code></p>
+<dt id="miplearn.components.primal.mem.SolutionConstructor">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.components.primal.mem.</span></code><code class="sig-name descname"><span class="pre">SolutionConstructor</span></code><a class="headerlink" href="#miplearn.components.primal.mem.SolutionConstructor" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">abc.ABC</span></code></p>
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.components.primal.mem.SolutionConstructor.construct">
-<em class="property"><span class="pre">abstract</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">construct</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">y_proba</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">solutions</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">ndarray</span></span></span><a class="headerlink" href="#miplearn.components.primal.mem.SolutionConstructor.construct" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.components.primal.mem.SolutionConstructor.construct">
+<em class="property"><span class="pre">abstract</span> </em><code class="sig-name descname"><span class="pre">construct</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">y_proba</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">solutions</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">numpy.ndarray</span><a class="headerlink" href="#miplearn.components.primal.mem.SolutionConstructor.construct" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 </dd></dl>
 
-</section>
-</section>
+</div>
+</div>
 
 
               </div>

0.4/api/helpers/index.html

@@ -1,10 +1,10 @@
+
 <!DOCTYPE html>
 
-<html lang="en" data-content_root="../../">
+<html>
   <head>
     <meta charset="utf-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
-
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>14. Helpers &#8212; MIPLearn 0.4</title>
     
   <link href="../../_static/css/theme.css" rel="stylesheet" />
@@ -22,17 +22,18 @@
       
 
     
-    <link rel="stylesheet" type="text/css" href="../../_static/pygments.css?v=362ab14a" />
-    <link rel="stylesheet" type="text/css" href="../../_static/sphinx-book-theme.acff12b8f9c144ce68a297486a2fa670.css?v=b0dfe17c" />
-    <link rel="stylesheet" type="text/css" href="../../_static/custom.css?v=f8244a84" />
+    <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
+    <link rel="stylesheet" href="../../_static/sphinx-book-theme.acff12b8f9c144ce68a297486a2fa670.css" type="text/css" />
+    <link rel="stylesheet" type="text/css" href="../../_static/custom.css" />
     
   <link rel="preload" as="script" href="../../_static/js/index.1c5a1a01449ed65a7b51.js">
 
-    <script src="../../_static/documentation_options.js?v=751a5dd3"></script>
-    <script src="../../_static/doctools.js?v=888ff710"></script>
-    <script src="../../_static/sphinx_highlight.js?v=dc90522c"></script>
+    <script id="documentation_options" data-url_root="../../" src="../../_static/documentation_options.js"></script>
+    <script src="../../_static/jquery.js"></script>
+    <script src="../../_static/underscore.js"></script>
+    <script src="../../_static/doctools.js"></script>
     <script crossorigin="anonymous" integrity="sha256-Ae2Vz/4ePdIu6ZyI/5ZGsYnb+m0JlOmKPjt6XZ9JJkA=" src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.3.4/require.min.js"></script>
-    <script src="../../_static/sphinx-book-theme.12a9622fbb08dcb3a2a40b2c02b83a57.js?v=7c4c3336"></script>
+    <script src="../../_static/sphinx-book-theme.12a9622fbb08dcb3a2a40b2c02b83a57.js"></script>
     <link rel="index" title="Index" href="../../genindex/" />
     <link rel="search" title="Search" href="../../search/" />
     <link rel="prev" title="13. Solvers" href="../solvers/" />
@@ -63,7 +64,7 @@
   <input type="search" class="form-control" name="q" id="search-input" placeholder="Search the docs ..." aria-label="Search the docs ..." autocomplete="off" >
 </form><nav class="bd-links" id="bd-docs-nav" aria-label="Main navigation">
     <div class="bd-toc-item active">
-        <p class="caption" role="heading">
+        <p class="caption">
  <span class="caption-text">
   Tutorials
  </span>
@@ -90,7 +91,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   User Guide
  </span>
@@ -122,7 +123,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   Python API Reference
  </span>
@@ -224,134 +225,11 @@
   <a class="reference internal nav-link" href="#module-miplearn.io">
    14.1. miplearn.io
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.io.gzip">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       gzip()
-      </span>
-     </code>
-    </a>
-   </li>
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.io.read_pkl_gz">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       read_pkl_gz()
-      </span>
-     </code>
-    </a>
-   </li>
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.io.write_pkl_gz">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       write_pkl_gz()
-      </span>
-     </code>
-    </a>
-   </li>
-  </ul>
  </li>
  <li class="toc-h2 nav-item toc-entry">
   <a class="reference internal nav-link" href="#module-miplearn.h5">
    14.2. miplearn.h5
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.h5.H5File">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       H5File
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.h5.H5File.close">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         H5File.close()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.h5.H5File.get_array">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         H5File.get_array()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.h5.H5File.get_bytes">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         H5File.get_bytes()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.h5.H5File.get_scalar">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         H5File.get_scalar()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.h5.H5File.get_sparse">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         H5File.get_sparse()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.h5.H5File.put_array">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         H5File.put_array()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.h5.H5File.put_bytes">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         H5File.put_bytes()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.h5.H5File.put_scalar">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         H5File.put_scalar()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.h5.H5File.put_sparse">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         H5File.put_sparse()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-  </ul>
  </li>
 </ul>
 
@@ -364,81 +242,81 @@
         
               <div>
                 
-  <section id="helpers">
-<h1><span class="section-number">14. </span>Helpers<a class="headerlink" href="#helpers" title="Link to this heading">¶</a></h1>
-<section id="module-miplearn.io">
-<span id="miplearn-io"></span><h2><span class="section-number">14.1. </span>miplearn.io<a class="headerlink" href="#module-miplearn.io" title="Link to this heading">¶</a></h2>
+  <div class="section" id="helpers">
+<h1><span class="section-number">14. </span>Helpers<a class="headerlink" href="#helpers" title="Permalink to this headline">¶</a></h1>
+<div class="section" id="module-miplearn.io">
+<span id="miplearn-io"></span><h2><span class="section-number">14.1. </span>miplearn.io<a class="headerlink" href="#module-miplearn.io" title="Permalink to this headline">¶</a></h2>
 <dl class="py function">
-<dt class="sig sig-object py" id="miplearn.io.gzip">
-<span class="sig-prename descclassname"><span class="pre">miplearn.io.</span></span><span class="sig-name descname"><span class="pre">gzip</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">filename</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.io.gzip" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.io.gzip">
+<code class="sig-prename descclassname"><span class="pre">miplearn.io.</span></code><code class="sig-name descname"><span class="pre">gzip</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">filename</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">str</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.io.gzip" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py function">
-<dt class="sig sig-object py" id="miplearn.io.read_pkl_gz">
-<span class="sig-prename descclassname"><span class="pre">miplearn.io.</span></span><span class="sig-name descname"><span class="pre">read_pkl_gz</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">filename</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">Any</span></span></span><a class="headerlink" href="#miplearn.io.read_pkl_gz" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.io.read_pkl_gz">
+<code class="sig-prename descclassname"><span class="pre">miplearn.io.</span></code><code class="sig-name descname"><span class="pre">read_pkl_gz</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">filename</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">str</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">Any</span><a class="headerlink" href="#miplearn.io.read_pkl_gz" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py function">
-<dt class="sig sig-object py" id="miplearn.io.write_pkl_gz">
-<span class="sig-prename descclassname"><span class="pre">miplearn.io.</span></span><span class="sig-name descname"><span class="pre">write_pkl_gz</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">objs</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">Any</span><span class="p"><span class="pre">]</span></span></span></em>, <em class="sig-param"><span class="n"><span class="pre">dirname</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">prefix</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">''</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">n_jobs</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">int</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">1</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">progress</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">bool</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">False</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">]</span></span></span></span><a class="headerlink" href="#miplearn.io.write_pkl_gz" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.io.write_pkl_gz">
+<code class="sig-prename descclassname"><span class="pre">miplearn.io.</span></code><code class="sig-name descname"><span class="pre">write_pkl_gz</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">objs</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">Any</span><span class="p"><span class="pre">]</span></span></span></em>, <em class="sig-param"><span class="n"><span class="pre">dirname</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">str</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">prefix</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">str</span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">''</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">n_jobs</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">int</span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">1</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">progress</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">bool</span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">False</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">]</span></span><a class="headerlink" href="#miplearn.io.write_pkl_gz" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
-</section>
-<section id="module-miplearn.h5">
-<span id="miplearn-h5"></span><h2><span class="section-number">14.2. </span>miplearn.h5<a class="headerlink" href="#module-miplearn.h5" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="module-miplearn.h5">
+<span id="miplearn-h5"></span><h2><span class="section-number">14.2. </span>miplearn.h5<a class="headerlink" href="#module-miplearn.h5" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.h5.H5File">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.h5.</span></span><span class="sig-name descname"><span class="pre">H5File</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">filename</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">mode</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">'r+'</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.h5.H5File" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.h5.H5File">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.h5.</span></code><code class="sig-name descname"><span class="pre">H5File</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">filename</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">str</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">mode</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">str</span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">'r+'</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.h5.H5File" title="Permalink to this definition">¶</a></dt>
 <dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></p>
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.h5.H5File.close">
-<span class="sig-name descname"><span class="pre">close</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.h5.H5File.close" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.h5.H5File.close">
+<code class="sig-name descname"><span class="pre">close</span></code><span class="sig-paren">(</span><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.h5.H5File.close" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.h5.H5File.get_array">
-<span class="sig-name descname"><span class="pre">get_array</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">key</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">ndarray</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.h5.H5File.get_array" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.h5.H5File.get_array">
+<code class="sig-name descname"><span class="pre">get_array</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">key</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">str</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">numpy.ndarray</span><span class="p"><span class="pre">]</span></span><a class="headerlink" href="#miplearn.h5.H5File.get_array" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.h5.H5File.get_bytes">
-<span class="sig-name descname"><span class="pre">get_bytes</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">key</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">bytes</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">bytearray</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.h5.H5File.get_bytes" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.h5.H5File.get_bytes">
+<code class="sig-name descname"><span class="pre">get_bytes</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">key</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">str</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Union</span><span class="p"><span class="pre">[</span></span><span class="pre">bytes</span><span class="p"><span class="pre">,</span> </span><span class="pre">bytearray</span><span class="p"><span class="pre">]</span></span><span class="p"><span class="pre">]</span></span><a class="headerlink" href="#miplearn.h5.H5File.get_bytes" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.h5.H5File.get_scalar">
-<span class="sig-name descname"><span class="pre">get_scalar</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">key</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">Any</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.h5.H5File.get_scalar" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.h5.H5File.get_scalar">
+<code class="sig-name descname"><span class="pre">get_scalar</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">key</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">str</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Any</span><span class="p"><span class="pre">]</span></span><a class="headerlink" href="#miplearn.h5.H5File.get_scalar" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.h5.H5File.get_sparse">
-<span class="sig-name descname"><span class="pre">get_sparse</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">key</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">coo_matrix</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.h5.H5File.get_sparse" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.h5.H5File.get_sparse">
+<code class="sig-name descname"><span class="pre">get_sparse</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">key</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">str</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">scipy.sparse._coo.coo_matrix</span><span class="p"><span class="pre">]</span></span><a class="headerlink" href="#miplearn.h5.H5File.get_sparse" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.h5.H5File.put_array">
-<span class="sig-name descname"><span class="pre">put_array</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">key</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">value</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.h5.H5File.put_array" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.h5.H5File.put_array">
+<code class="sig-name descname"><span class="pre">put_array</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">key</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">str</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">value</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">numpy.ndarray</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.h5.H5File.put_array" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.h5.H5File.put_bytes">
-<span class="sig-name descname"><span class="pre">put_bytes</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">key</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">value</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">bytes</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">bytearray</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.h5.H5File.put_bytes" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.h5.H5File.put_bytes">
+<code class="sig-name descname"><span class="pre">put_bytes</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">key</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">str</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">value</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Union</span><span class="p"><span class="pre">[</span></span><span class="pre">bytes</span><span class="p"><span class="pre">,</span> </span><span class="pre">bytearray</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.h5.H5File.put_bytes" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.h5.H5File.put_scalar">
-<span class="sig-name descname"><span class="pre">put_scalar</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">key</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">value</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Any</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.h5.H5File.put_scalar" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.h5.H5File.put_scalar">
+<code class="sig-name descname"><span class="pre">put_scalar</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">key</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">str</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">value</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Any</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.h5.H5File.put_scalar" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.h5.H5File.put_sparse">
-<span class="sig-name descname"><span class="pre">put_sparse</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">key</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">value</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">coo_matrix</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.h5.H5File.put_sparse" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.h5.H5File.put_sparse">
+<code class="sig-name descname"><span class="pre">put_sparse</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">key</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">str</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">value</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">scipy.sparse._coo.coo_matrix</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.h5.H5File.put_sparse" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 </dd></dl>
 
-</section>
-</section>
+</div>
+</div>
 
 
               </div>

0.4/api/problems/index.html

@@ -1,10 +1,10 @@
+
 <!DOCTYPE html>
 
-<html lang="en" data-content_root="../../">
+<html>
   <head>
     <meta charset="utf-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
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+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>10. Benchmark Problems &#8212; MIPLearn 0.4</title>
     
   <link href="../../_static/css/theme.css" rel="stylesheet" />
@@ -22,17 +22,18 @@
       
 
     
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+    <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
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   <link rel="preload" as="script" href="../../_static/js/index.1c5a1a01449ed65a7b51.js">
 
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+    <script id="documentation_options" data-url_root="../../" src="../../_static/documentation_options.js"></script>
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-    <script src="../../_static/sphinx-book-theme.12a9622fbb08dcb3a2a40b2c02b83a57.js?v=7c4c3336"></script>
+    <script src="../../_static/sphinx-book-theme.12a9622fbb08dcb3a2a40b2c02b83a57.js"></script>
     <link rel="index" title="Index" href="../../genindex/" />
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     <link rel="next" title="11. Collectors &amp; Extractors" href="../collectors/" />
@@ -64,7 +65,7 @@
   <input type="search" class="form-control" name="q" id="search-input" placeholder="Search the docs ..." aria-label="Search the docs ..." autocomplete="off" >
 </form><nav class="bd-links" id="bd-docs-nav" aria-label="Main navigation">
     <div class="bd-toc-item active">
-        <p class="caption" role="heading">
+        <p class="caption">
  <span class="caption-text">
   Tutorials
  </span>
@@ -91,7 +92,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   User Guide
  </span>
@@ -123,7 +124,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   Python API Reference
  </span>
@@ -225,237 +226,46 @@
   <a class="reference internal nav-link" href="#module-miplearn.problems.binpack">
    10.1. miplearn.problems.binpack
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.problems.binpack.BinPackData">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       BinPackData
-      </span>
-     </code>
-    </a>
-   </li>
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.problems.binpack.BinPackGenerator">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       BinPackGenerator
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.problems.binpack.BinPackGenerator.generate">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         BinPackGenerator.generate()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.problems.binpack.build_binpack_model_gurobipy">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       build_binpack_model_gurobipy()
-      </span>
-     </code>
-    </a>
-   </li>
-  </ul>
  </li>
  <li class="toc-h2 nav-item toc-entry">
   <a class="reference internal nav-link" href="#module-miplearn.problems.multiknapsack">
    10.2. miplearn.problems.multiknapsack
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.problems.multiknapsack.MultiKnapsackData">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       MultiKnapsackData
-      </span>
-     </code>
-    </a>
-   </li>
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.problems.multiknapsack.MultiKnapsackGenerator">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       MultiKnapsackGenerator
-      </span>
-     </code>
-    </a>
-   </li>
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.problems.multiknapsack.build_multiknapsack_model_gurobipy">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       build_multiknapsack_model_gurobipy()
-      </span>
-     </code>
-    </a>
-   </li>
-  </ul>
  </li>
  <li class="toc-h2 nav-item toc-entry">
   <a class="reference internal nav-link" href="#module-miplearn.problems.pmedian">
    10.3. miplearn.problems.pmedian
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.problems.pmedian.PMedianData">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       PMedianData
-      </span>
-     </code>
-    </a>
-   </li>
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.problems.pmedian.PMedianGenerator">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       PMedianGenerator
-      </span>
-     </code>
-    </a>
-   </li>
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.problems.pmedian.build_pmedian_model_gurobipy">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       build_pmedian_model_gurobipy()
-      </span>
-     </code>
-    </a>
-   </li>
-  </ul>
  </li>
  <li class="toc-h2 nav-item toc-entry">
   <a class="reference internal nav-link" href="#module-miplearn.problems.setcover">
    10.4. miplearn.problems.setcover
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.problems.setcover.SetCoverData">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       SetCoverData
-      </span>
-     </code>
-    </a>
-   </li>
-  </ul>
  </li>
  <li class="toc-h2 nav-item toc-entry">
   <a class="reference internal nav-link" href="#module-miplearn.problems.setpack">
    10.5. miplearn.problems.setpack
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.problems.setpack.SetPackData">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       SetPackData
-      </span>
-     </code>
-    </a>
-   </li>
-  </ul>
  </li>
  <li class="toc-h2 nav-item toc-entry">
   <a class="reference internal nav-link" href="#module-miplearn.problems.stab">
    10.6. miplearn.problems.stab
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.problems.stab.MaxWeightStableSetData">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       MaxWeightStableSetData
-      </span>
-     </code>
-    </a>
-   </li>
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.problems.stab.MaxWeightStableSetGenerator">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       MaxWeightStableSetGenerator
-      </span>
-     </code>
-    </a>
-   </li>
-  </ul>
  </li>
  <li class="toc-h2 nav-item toc-entry">
   <a class="reference internal nav-link" href="#module-miplearn.problems.tsp">
    10.7. miplearn.problems.tsp
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.problems.tsp.TravelingSalesmanData">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       TravelingSalesmanData
-      </span>
-     </code>
-    </a>
-   </li>
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.problems.tsp.TravelingSalesmanGenerator">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       TravelingSalesmanGenerator
-      </span>
-     </code>
-    </a>
-   </li>
-  </ul>
  </li>
  <li class="toc-h2 nav-item toc-entry">
   <a class="reference internal nav-link" href="#module-miplearn.problems.uc">
    10.8. miplearn.problems.uc
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.problems.uc.UnitCommitmentData">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       UnitCommitmentData
-      </span>
-     </code>
-    </a>
-   </li>
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.problems.uc.build_uc_model_gurobipy">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       build_uc_model_gurobipy()
-      </span>
-     </code>
-    </a>
-   </li>
-  </ul>
  </li>
  <li class="toc-h2 nav-item toc-entry">
   <a class="reference internal nav-link" href="#module-miplearn.problems.vertexcover">
    10.9. miplearn.problems.vertexcover
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.problems.vertexcover.MinWeightVertexCoverData">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       MinWeightVertexCoverData
-      </span>
-     </code>
-    </a>
-   </li>
-  </ul>
  </li>
 </ul>
 
@@ -468,16 +278,16 @@
         
               <div>
                 
-  <section id="benchmark-problems">
-<h1><span class="section-number">10. </span>Benchmark Problems<a class="headerlink" href="#benchmark-problems" title="Link to this heading">¶</a></h1>
-<section id="module-miplearn.problems.binpack">
-<span id="miplearn-problems-binpack"></span><h2><span class="section-number">10.1. </span>miplearn.problems.binpack<a class="headerlink" href="#module-miplearn.problems.binpack" title="Link to this heading">¶</a></h2>
+  <div class="section" id="benchmark-problems">
+<h1><span class="section-number">10. </span>Benchmark Problems<a class="headerlink" href="#benchmark-problems" title="Permalink to this headline">¶</a></h1>
+<div class="section" id="module-miplearn.problems.binpack">
+<span id="miplearn-problems-binpack"></span><h2><span class="section-number">10.1. </span>miplearn.problems.binpack<a class="headerlink" href="#module-miplearn.problems.binpack" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.problems.binpack.BinPackData">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.problems.binpack.</span></span><span class="sig-name descname"><span class="pre">BinPackData</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">sizes</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">capacity</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">int</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.binpack.BinPackData" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.problems.binpack.BinPackData">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.problems.binpack.</span></code><code class="sig-name descname"><span class="pre">BinPackData</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">sizes</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">capacity</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">int</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.binpack.BinPackData" title="Permalink to this definition">¶</a></dt>
 <dd><p>Data for the bin packing problem.</p>
 <dl class="field-list simple">
-<dt class="field-odd">Parameters<span class="colon">:</span></dt>
+<dt class="field-odd">Parameters</dt>
 <dd class="field-odd"><ul class="simple">
 <li><p><strong>sizes</strong> (<em>numpy.ndarray</em>) – Sizes of the items</p></li>
 <li><p><strong>capacity</strong> (<em>int</em>) – Capacity of the bin</p></li>
@@ -487,8 +297,8 @@
 </dd></dl>
 
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.problems.binpack.BinPackGenerator">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.problems.binpack.</span></span><span class="sig-name descname"><span class="pre">BinPackGenerator</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">n</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">rv_frozen</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">sizes</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">rv_frozen</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">capacity</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">rv_frozen</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">sizes_jitter</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">rv_frozen</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">capacity_jitter</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">rv_frozen</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">fix_items</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">bool</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.binpack.BinPackGenerator" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.problems.binpack.BinPackGenerator">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.problems.binpack.</span></code><code class="sig-name descname"><span class="pre">BinPackGenerator</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">n</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">sizes</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">capacity</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">sizes_jitter</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">capacity_jitter</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">fix_items</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">bool</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.binpack.BinPackGenerator" title="Permalink to this definition">¶</a></dt>
 <dd><p>Random instance generator for the bin packing problem.</p>
 <p>If <cite>fix_items=False</cite>, the class samples the user-provided probability distributions
 n, sizes and capacity to decide, respectively, the number of items, the sizes of
@@ -502,7 +312,7 @@ beta</cite>, where <cite>B</cite> is the reference bin capacity and <cite>beta</
 <cite>capacity_jitter</cite>. The number of items remains the same across all generated
 instances.</p>
 <dl class="field-list simple">
-<dt class="field-odd">Parameters<span class="colon">:</span></dt>
+<dt class="field-odd">Parameters</dt>
 <dd class="field-odd"><ul class="simple">
 <li><p><strong>n</strong> – Probability distribution for the number of items.</p></li>
 <li><p><strong>sizes</strong> – Probability distribution for the item sizes.</p></li>
@@ -515,11 +325,11 @@ If <cite>False</cite>, generates completely different instances.</p></li>
 </dd>
 </dl>
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.problems.binpack.BinPackGenerator.generate">
-<span class="sig-name descname"><span class="pre">generate</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">n_samples</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">int</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><a class="reference internal" href="#miplearn.problems.binpack.BinPackData" title="miplearn.problems.binpack.BinPackData"><span class="pre">BinPackData</span></a><span class="p"><span class="pre">]</span></span></span></span><a class="headerlink" href="#miplearn.problems.binpack.BinPackGenerator.generate" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.problems.binpack.BinPackGenerator.generate">
+<code class="sig-name descname"><span class="pre">generate</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">n_samples</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">int</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">List</span><span class="p"><span class="pre">[</span></span><a class="reference internal" href="#miplearn.problems.binpack.BinPackData" title="miplearn.problems.binpack.BinPackData"><span class="pre">miplearn.problems.binpack.BinPackData</span></a><span class="p"><span class="pre">]</span></span><a class="headerlink" href="#miplearn.problems.binpack.BinPackGenerator.generate" title="Permalink to this definition">¶</a></dt>
 <dd><p>Generates random instances.</p>
 <dl class="field-list simple">
-<dt class="field-odd">Parameters<span class="colon">:</span></dt>
+<dt class="field-odd">Parameters</dt>
 <dd class="field-odd"><p><strong>n_samples</strong> – Number of samples to generate.</p>
 </dd>
 </dl>
@@ -528,20 +338,20 @@ If <cite>False</cite>, generates completely different instances.</p></li>
 </dd></dl>
 
 <dl class="py function">
-<dt class="sig sig-object py" id="miplearn.problems.binpack.build_binpack_model_gurobipy">
-<span class="sig-prename descclassname"><span class="pre">miplearn.problems.binpack.</span></span><span class="sig-name descname"><span class="pre">build_binpack_model_gurobipy</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">data</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><a class="reference internal" href="#miplearn.problems.binpack.BinPackData" title="miplearn.problems.binpack.BinPackData"><span class="pre">BinPackData</span></a></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><a class="reference internal" href="../solvers/#miplearn.solvers.gurobi.GurobiModel" title="miplearn.solvers.gurobi.GurobiModel"><span class="pre">GurobiModel</span></a></span></span><a class="headerlink" href="#miplearn.problems.binpack.build_binpack_model_gurobipy" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.problems.binpack.build_binpack_model_gurobipy">
+<code class="sig-prename descclassname"><span class="pre">miplearn.problems.binpack.</span></code><code class="sig-name descname"><span class="pre">build_binpack_model_gurobipy</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">data</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Union</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">,</span> </span><a class="reference internal" href="#miplearn.problems.binpack.BinPackData" title="miplearn.problems.binpack.BinPackData"><span class="pre">miplearn.problems.binpack.BinPackData</span></a><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> &#x2192; <a class="reference internal" href="../solvers/#miplearn.solvers.gurobi.GurobiModel" title="miplearn.solvers.gurobi.GurobiModel"><span class="pre">miplearn.solvers.gurobi.GurobiModel</span></a><a class="headerlink" href="#miplearn.problems.binpack.build_binpack_model_gurobipy" title="Permalink to this definition">¶</a></dt>
 <dd><p>Converts bin packing problem data into a concrete Gurobipy model.</p>
 </dd></dl>
 
-</section>
-<section id="module-miplearn.problems.multiknapsack">
-<span id="miplearn-problems-multiknapsack"></span><h2><span class="section-number">10.2. </span>miplearn.problems.multiknapsack<a class="headerlink" href="#module-miplearn.problems.multiknapsack" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="module-miplearn.problems.multiknapsack">
+<span id="miplearn-problems-multiknapsack"></span><h2><span class="section-number">10.2. </span>miplearn.problems.multiknapsack<a class="headerlink" href="#module-miplearn.problems.multiknapsack" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.problems.multiknapsack.MultiKnapsackData">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.problems.multiknapsack.</span></span><span class="sig-name descname"><span class="pre">MultiKnapsackData</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">prices</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">capacities</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">weights</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.multiknapsack.MultiKnapsackData" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.problems.multiknapsack.MultiKnapsackData">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.problems.multiknapsack.</span></code><code class="sig-name descname"><span class="pre">MultiKnapsackData</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">prices</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">capacities</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">weights</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.multiknapsack.MultiKnapsackData" title="Permalink to this definition">¶</a></dt>
 <dd><p>Data for the multi-dimensional knapsack problem</p>
 <dl class="field-list simple">
-<dt class="field-odd">Parameters<span class="colon">:</span></dt>
+<dt class="field-odd">Parameters</dt>
 <dd class="field-odd"><ul class="simple">
 <li><p><strong>prices</strong> (<em>numpy.ndarray</em>) – Item prices.</p></li>
 <li><p><strong>capacities</strong> (<em>numpy.ndarray</em>) – Knapsack capacities.</p></li>
@@ -552,8 +362,8 @@ If <cite>False</cite>, generates completely different instances.</p></li>
 </dd></dl>
 
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.problems.multiknapsack.MultiKnapsackGenerator">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.problems.multiknapsack.</span></span><span class="sig-name descname"><span class="pre">MultiKnapsackGenerator</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">n:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_discrete_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">m:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_discrete_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">w:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_discrete_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">K:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_discrete_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">u:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">alpha:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">fix_w:</span> <span class="pre">bool</span> <span class="pre">=</span> <span class="pre">False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">w_jitter:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">p_jitter:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">round:</span> <span class="pre">bool</span> <span class="pre">=</span> <span class="pre">True</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.multiknapsack.MultiKnapsackGenerator" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.problems.multiknapsack.MultiKnapsackGenerator">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.problems.multiknapsack.</span></code><code class="sig-name descname"><span class="pre">MultiKnapsackGenerator</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="pre">n:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_discrete_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">m:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_discrete_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">w:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_discrete_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">K:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_discrete_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">u:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">alpha:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">fix_w:</span> <span class="pre">bool</span> <span class="pre">=</span> <span class="pre">False</span></em>, <em class="sig-param"><span class="pre">w_jitter:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">p_jitter:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">round:</span> <span class="pre">bool</span> <span class="pre">=</span> <span class="pre">True</span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.multiknapsack.MultiKnapsackGenerator" title="Permalink to this definition">¶</a></dt>
 <dd><p>Random instance generator for the multi-dimensional knapsack problem.</p>
 <p>Instances have a random number of items (or variables) and a random number of
 knapsacks (or constraints), as specified by the provided probability
@@ -582,7 +392,7 @@ will be calculated as above, but using these perturbed weights instead.</p>
 nearest integer number. If <cite>round=False</cite> is provided, this rounding will be
 disabled.</p>
 <dl class="field-list simple">
-<dt class="field-odd">Parameters<span class="colon">:</span></dt>
+<dt class="field-odd">Parameters</dt>
 <dd class="field-odd"><ul class="simple">
 <li><p><strong>n</strong> (<em>rv_discrete</em>) – Probability distribution for the number of items (or variables).</p></li>
 <li><p><strong>m</strong> (<em>rv_discrete</em>) – Probability distribution for the number of knapsacks (or constraints).</p></li>
@@ -601,20 +411,20 @@ integer.</p></li>
 </dd></dl>
 
 <dl class="py function">
-<dt class="sig sig-object py" id="miplearn.problems.multiknapsack.build_multiknapsack_model_gurobipy">
-<span class="sig-prename descclassname"><span class="pre">miplearn.problems.multiknapsack.</span></span><span class="sig-name descname"><span class="pre">build_multiknapsack_model_gurobipy</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">data</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><a class="reference internal" href="#miplearn.problems.multiknapsack.MultiKnapsackData" title="miplearn.problems.multiknapsack.MultiKnapsackData"><span class="pre">MultiKnapsackData</span></a></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><a class="reference internal" href="../solvers/#miplearn.solvers.gurobi.GurobiModel" title="miplearn.solvers.gurobi.GurobiModel"><span class="pre">GurobiModel</span></a></span></span><a class="headerlink" href="#miplearn.problems.multiknapsack.build_multiknapsack_model_gurobipy" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.problems.multiknapsack.build_multiknapsack_model_gurobipy">
+<code class="sig-prename descclassname"><span class="pre">miplearn.problems.multiknapsack.</span></code><code class="sig-name descname"><span class="pre">build_multiknapsack_model_gurobipy</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">data</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Union</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">,</span> </span><a class="reference internal" href="#miplearn.problems.multiknapsack.MultiKnapsackData" title="miplearn.problems.multiknapsack.MultiKnapsackData"><span class="pre">miplearn.problems.multiknapsack.MultiKnapsackData</span></a><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> &#x2192; <a class="reference internal" href="../solvers/#miplearn.solvers.gurobi.GurobiModel" title="miplearn.solvers.gurobi.GurobiModel"><span class="pre">miplearn.solvers.gurobi.GurobiModel</span></a><a class="headerlink" href="#miplearn.problems.multiknapsack.build_multiknapsack_model_gurobipy" title="Permalink to this definition">¶</a></dt>
 <dd><p>Converts multi-knapsack problem data into a concrete Gurobipy model.</p>
 </dd></dl>
 
-</section>
-<section id="module-miplearn.problems.pmedian">
-<span id="miplearn-problems-pmedian"></span><h2><span class="section-number">10.3. </span>miplearn.problems.pmedian<a class="headerlink" href="#module-miplearn.problems.pmedian" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="module-miplearn.problems.pmedian">
+<span id="miplearn-problems-pmedian"></span><h2><span class="section-number">10.3. </span>miplearn.problems.pmedian<a class="headerlink" href="#module-miplearn.problems.pmedian" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.problems.pmedian.PMedianData">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.problems.pmedian.</span></span><span class="sig-name descname"><span class="pre">PMedianData</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">distances</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">demands</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">p</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">int</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">capacities</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.pmedian.PMedianData" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.problems.pmedian.PMedianData">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.problems.pmedian.</span></code><code class="sig-name descname"><span class="pre">PMedianData</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">distances</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">demands</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">p</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">int</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">capacities</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.pmedian.PMedianData" title="Permalink to this definition">¶</a></dt>
 <dd><p>Data for the capacitated p-median problem</p>
 <dl class="field-list simple">
-<dt class="field-odd">Parameters<span class="colon">:</span></dt>
+<dt class="field-odd">Parameters</dt>
 <dd class="field-odd"><ul class="simple">
 <li><p><strong>distances</strong> (<em>numpy.ndarray</em>) – Matrix of distances between customer i and facility j.</p></li>
 <li><p><strong>demands</strong> (<em>numpy.ndarray</em>) – Customer demands.</p></li>
@@ -626,8 +436,8 @@ integer.</p></li>
 </dd></dl>
 
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.problems.pmedian.PMedianGenerator">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.problems.pmedian.</span></span><span class="sig-name descname"><span class="pre">PMedianGenerator</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">x:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">y:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">n:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_discrete_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">p:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_discrete_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">demands:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">capacities:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">distances_jitter:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">demands_jitter:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">capacities_jitter:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">fixed:</span> <span class="pre">bool</span> <span class="pre">=</span> <span class="pre">True</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.pmedian.PMedianGenerator" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.problems.pmedian.PMedianGenerator">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.problems.pmedian.</span></code><code class="sig-name descname"><span class="pre">PMedianGenerator</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="pre">x:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">y:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">n:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_discrete_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">p:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_discrete_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">demands:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">capacities:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">distances_jitter:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">demands_jitter:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">capacities_jitter:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">fixed:</span> <span class="pre">bool</span> <span class="pre">=</span> <span class="pre">True</span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.pmedian.PMedianGenerator" title="Permalink to this definition">¶</a></dt>
 <dd><p>Random generator for the capacitated p-median problem.</p>
 <p>This class first decides the number of customers and the parameter <cite>p</cite> by
 sampling the provided <cite>n</cite> and <cite>p</cite> distributions, respectively. Then, for each
@@ -645,7 +455,7 @@ capacities are multiplied by factors sampled from the distributions
 result is a list of instances that have the same set of customers, but slightly
 different demands, capacities and distances.</p>
 <dl class="field-list simple">
-<dt class="field-odd">Parameters<span class="colon">:</span></dt>
+<dt class="field-odd">Parameters</dt>
 <dd class="field-odd"><ul class="simple">
 <li><p><strong>x</strong> – Probability distribution for the x-coordinate of the points.</p></li>
 <li><p><strong>y</strong> – Probability distribution for the y-coordinate of the points.</p></li>
@@ -663,38 +473,38 @@ different demands, capacities and distances.</p>
 </dd></dl>
 
 <dl class="py function">
-<dt class="sig sig-object py" id="miplearn.problems.pmedian.build_pmedian_model_gurobipy">
-<span class="sig-prename descclassname"><span class="pre">miplearn.problems.pmedian.</span></span><span class="sig-name descname"><span class="pre">build_pmedian_model_gurobipy</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">data</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><a class="reference internal" href="#miplearn.problems.pmedian.PMedianData" title="miplearn.problems.pmedian.PMedianData"><span class="pre">PMedianData</span></a></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><a class="reference internal" href="../solvers/#miplearn.solvers.gurobi.GurobiModel" title="miplearn.solvers.gurobi.GurobiModel"><span class="pre">GurobiModel</span></a></span></span><a class="headerlink" href="#miplearn.problems.pmedian.build_pmedian_model_gurobipy" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.problems.pmedian.build_pmedian_model_gurobipy">
+<code class="sig-prename descclassname"><span class="pre">miplearn.problems.pmedian.</span></code><code class="sig-name descname"><span class="pre">build_pmedian_model_gurobipy</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">data</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Union</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">,</span> </span><a class="reference internal" href="#miplearn.problems.pmedian.PMedianData" title="miplearn.problems.pmedian.PMedianData"><span class="pre">miplearn.problems.pmedian.PMedianData</span></a><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> &#x2192; <a class="reference internal" href="../solvers/#miplearn.solvers.gurobi.GurobiModel" title="miplearn.solvers.gurobi.GurobiModel"><span class="pre">miplearn.solvers.gurobi.GurobiModel</span></a><a class="headerlink" href="#miplearn.problems.pmedian.build_pmedian_model_gurobipy" title="Permalink to this definition">¶</a></dt>
 <dd><p>Converts capacitated p-median data into a concrete Gurobipy model.</p>
 </dd></dl>
 
-</section>
-<section id="module-miplearn.problems.setcover">
-<span id="miplearn-problems-setcover"></span><h2><span class="section-number">10.4. </span>miplearn.problems.setcover<a class="headerlink" href="#module-miplearn.problems.setcover" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="module-miplearn.problems.setcover">
+<span id="miplearn-problems-setcover"></span><h2><span class="section-number">10.4. </span>miplearn.problems.setcover<a class="headerlink" href="#module-miplearn.problems.setcover" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.problems.setcover.SetCoverData">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.problems.setcover.</span></span><span class="sig-name descname"><span class="pre">SetCoverData</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">costs</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">incidence_matrix</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.setcover.SetCoverData" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.problems.setcover.SetCoverData">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.problems.setcover.</span></code><code class="sig-name descname"><span class="pre">SetCoverData</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">costs</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">incidence_matrix</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.setcover.SetCoverData" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
-</section>
-<section id="module-miplearn.problems.setpack">
-<span id="miplearn-problems-setpack"></span><h2><span class="section-number">10.5. </span>miplearn.problems.setpack<a class="headerlink" href="#module-miplearn.problems.setpack" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="module-miplearn.problems.setpack">
+<span id="miplearn-problems-setpack"></span><h2><span class="section-number">10.5. </span>miplearn.problems.setpack<a class="headerlink" href="#module-miplearn.problems.setpack" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.problems.setpack.SetPackData">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.problems.setpack.</span></span><span class="sig-name descname"><span class="pre">SetPackData</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">costs</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">incidence_matrix</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.setpack.SetPackData" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.problems.setpack.SetPackData">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.problems.setpack.</span></code><code class="sig-name descname"><span class="pre">SetPackData</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">costs</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">incidence_matrix</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.setpack.SetPackData" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
-</section>
-<section id="module-miplearn.problems.stab">
-<span id="miplearn-problems-stab"></span><h2><span class="section-number">10.6. </span>miplearn.problems.stab<a class="headerlink" href="#module-miplearn.problems.stab" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="module-miplearn.problems.stab">
+<span id="miplearn-problems-stab"></span><h2><span class="section-number">10.6. </span>miplearn.problems.stab<a class="headerlink" href="#module-miplearn.problems.stab" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.problems.stab.MaxWeightStableSetData">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.problems.stab.</span></span><span class="sig-name descname"><span class="pre">MaxWeightStableSetData</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">graph</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">networkx.classes.graph.Graph</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">weights</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.stab.MaxWeightStableSetData" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.problems.stab.MaxWeightStableSetData">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.problems.stab.</span></code><code class="sig-name descname"><span class="pre">MaxWeightStableSetData</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">graph</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">networkx.classes.graph.Graph</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">weights</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.stab.MaxWeightStableSetData" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.problems.stab.MaxWeightStableSetGenerator">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.problems.stab.</span></span><span class="sig-name descname"><span class="pre">MaxWeightStableSetGenerator</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">w:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">n:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_discrete_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">p:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">fix_graph:</span> <span class="pre">bool</span> <span class="pre">=</span> <span class="pre">True</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.stab.MaxWeightStableSetGenerator" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.problems.stab.MaxWeightStableSetGenerator">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.problems.stab.</span></code><code class="sig-name descname"><span class="pre">MaxWeightStableSetGenerator</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="pre">w:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">n:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_discrete_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">p:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">fix_graph:</span> <span class="pre">bool</span> <span class="pre">=</span> <span class="pre">True</span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.stab.MaxWeightStableSetGenerator" title="Permalink to this definition">¶</a></dt>
 <dd><p>Random instance generator for the Maximum-Weight Stable Set Problem.</p>
 <p>The generator has two modes of operation. When <cite>fix_graph=True</cite> is provided,
 one random Erdős-Rényi graph $G_{n,p}$ is generated in the constructor, where $n$
@@ -705,31 +515,31 @@ user-provided probability distribution <cite>w</cite>.</p>
 remaining parameters are sampled in the same way.</p>
 </dd></dl>
 
-</section>
-<section id="module-miplearn.problems.tsp">
-<span id="miplearn-problems-tsp"></span><h2><span class="section-number">10.7. </span>miplearn.problems.tsp<a class="headerlink" href="#module-miplearn.problems.tsp" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="module-miplearn.problems.tsp">
+<span id="miplearn-problems-tsp"></span><h2><span class="section-number">10.7. </span>miplearn.problems.tsp<a class="headerlink" href="#module-miplearn.problems.tsp" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.problems.tsp.TravelingSalesmanData">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.problems.tsp.</span></span><span class="sig-name descname"><span class="pre">TravelingSalesmanData</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">n_cities</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">int</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">distances</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.tsp.TravelingSalesmanData" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.problems.tsp.TravelingSalesmanData">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.problems.tsp.</span></code><code class="sig-name descname"><span class="pre">TravelingSalesmanData</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">n_cities</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">int</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">distances</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.tsp.TravelingSalesmanData" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.problems.tsp.TravelingSalesmanGenerator">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.problems.tsp.</span></span><span class="sig-name descname"><span class="pre">TravelingSalesmanGenerator</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">x:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">y:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">n:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_discrete_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">gamma:</span> <span class="pre">~scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">fix_cities:</span> <span class="pre">bool</span> <span class="pre">=</span> <span class="pre">True</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">round:</span> <span class="pre">bool</span> <span class="pre">=</span> <span class="pre">True</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.tsp.TravelingSalesmanGenerator" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.problems.tsp.TravelingSalesmanGenerator">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.problems.tsp.</span></code><code class="sig-name descname"><span class="pre">TravelingSalesmanGenerator</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="pre">x:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">y:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">n:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_discrete_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">gamma:</span> <span class="pre">scipy.stats._distn_infrastructure.rv_frozen</span> <span class="pre">=</span> <span class="pre">&lt;scipy.stats._distn_infrastructure.rv_continuous_frozen</span> <span class="pre">object&gt;</span></em>, <em class="sig-param"><span class="pre">fix_cities:</span> <span class="pre">bool</span> <span class="pre">=</span> <span class="pre">True</span></em>, <em class="sig-param"><span class="pre">round:</span> <span class="pre">bool</span> <span class="pre">=</span> <span class="pre">True</span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.tsp.TravelingSalesmanGenerator" title="Permalink to this definition">¶</a></dt>
 <dd><p>Random generator for the Traveling Salesman Problem.</p>
 </dd></dl>
 
-</section>
-<section id="module-miplearn.problems.uc">
-<span id="miplearn-problems-uc"></span><h2><span class="section-number">10.8. </span>miplearn.problems.uc<a class="headerlink" href="#module-miplearn.problems.uc" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="module-miplearn.problems.uc">
+<span id="miplearn-problems-uc"></span><h2><span class="section-number">10.8. </span>miplearn.problems.uc<a class="headerlink" href="#module-miplearn.problems.uc" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.problems.uc.UnitCommitmentData">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.problems.uc.</span></span><span class="sig-name descname"><span class="pre">UnitCommitmentData</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">demand</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">min_power</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">max_power</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">min_uptime</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">min_downtime</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">cost_startup</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">cost_prod</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">cost_fixed</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.uc.UnitCommitmentData" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.problems.uc.UnitCommitmentData">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.problems.uc.</span></code><code class="sig-name descname"><span class="pre">UnitCommitmentData</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">demand</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">min_power</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">max_power</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">min_uptime</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">min_downtime</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">cost_startup</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">cost_prod</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">cost_fixed</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.uc.UnitCommitmentData" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py function">
-<dt class="sig sig-object py" id="miplearn.problems.uc.build_uc_model_gurobipy">
-<span class="sig-prename descclassname"><span class="pre">miplearn.problems.uc.</span></span><span class="sig-name descname"><span class="pre">build_uc_model_gurobipy</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">data</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><a class="reference internal" href="#miplearn.problems.uc.UnitCommitmentData" title="miplearn.problems.uc.UnitCommitmentData"><span class="pre">UnitCommitmentData</span></a></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><a class="reference internal" href="../solvers/#miplearn.solvers.gurobi.GurobiModel" title="miplearn.solvers.gurobi.GurobiModel"><span class="pre">GurobiModel</span></a></span></span><a class="headerlink" href="#miplearn.problems.uc.build_uc_model_gurobipy" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.problems.uc.build_uc_model_gurobipy">
+<code class="sig-prename descclassname"><span class="pre">miplearn.problems.uc.</span></code><code class="sig-name descname"><span class="pre">build_uc_model_gurobipy</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">data</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Union</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">,</span> </span><a class="reference internal" href="#miplearn.problems.uc.UnitCommitmentData" title="miplearn.problems.uc.UnitCommitmentData"><span class="pre">miplearn.problems.uc.UnitCommitmentData</span></a><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> &#x2192; <a class="reference internal" href="../solvers/#miplearn.solvers.gurobi.GurobiModel" title="miplearn.solvers.gurobi.GurobiModel"><span class="pre">miplearn.solvers.gurobi.GurobiModel</span></a><a class="headerlink" href="#miplearn.problems.uc.build_uc_model_gurobipy" title="Permalink to this definition">¶</a></dt>
 <dd><p>Models the unit commitment problem according to equations (1)-(5) of:</p>
 <blockquote>
 <div><p>Bendotti, P., Fouilhoux, P. &amp; Rottner, C. The min-up/min-down unit
@@ -738,16 +548,16 @@ commitment polytope. J Comb Optim 36, 1024-1058 (2018).
 </div></blockquote>
 </dd></dl>
 
-</section>
-<section id="module-miplearn.problems.vertexcover">
-<span id="miplearn-problems-vertexcover"></span><h2><span class="section-number">10.9. </span>miplearn.problems.vertexcover<a class="headerlink" href="#module-miplearn.problems.vertexcover" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="module-miplearn.problems.vertexcover">
+<span id="miplearn-problems-vertexcover"></span><h2><span class="section-number">10.9. </span>miplearn.problems.vertexcover<a class="headerlink" href="#module-miplearn.problems.vertexcover" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.problems.vertexcover.MinWeightVertexCoverData">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.problems.vertexcover.</span></span><span class="sig-name descname"><span class="pre">MinWeightVertexCoverData</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">graph</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">networkx.classes.graph.Graph</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">weights</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.vertexcover.MinWeightVertexCoverData" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.problems.vertexcover.MinWeightVertexCoverData">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.problems.vertexcover.</span></code><code class="sig-name descname"><span class="pre">MinWeightVertexCoverData</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">graph</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">networkx.classes.graph.Graph</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">weights</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.problems.vertexcover.MinWeightVertexCoverData" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
-</section>
-</section>
+</div>
+</div>
 
 
               </div>

0.4/api/solvers/index.html

@@ -1,10 +1,10 @@
+
 <!DOCTYPE html>
 
-<html lang="en" data-content_root="../../">
+<html>
   <head>
     <meta charset="utf-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
-
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>13. Solvers &#8212; MIPLearn 0.4</title>
     
   <link href="../../_static/css/theme.css" rel="stylesheet" />
@@ -22,17 +22,18 @@
       
 
     
-    <link rel="stylesheet" type="text/css" href="../../_static/pygments.css?v=362ab14a" />
-    <link rel="stylesheet" type="text/css" href="../../_static/sphinx-book-theme.acff12b8f9c144ce68a297486a2fa670.css?v=b0dfe17c" />
-    <link rel="stylesheet" type="text/css" href="../../_static/custom.css?v=f8244a84" />
+    <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
+    <link rel="stylesheet" href="../../_static/sphinx-book-theme.acff12b8f9c144ce68a297486a2fa670.css" type="text/css" />
+    <link rel="stylesheet" type="text/css" href="../../_static/custom.css" />
     
   <link rel="preload" as="script" href="../../_static/js/index.1c5a1a01449ed65a7b51.js">
 
-    <script src="../../_static/documentation_options.js?v=751a5dd3"></script>
-    <script src="../../_static/doctools.js?v=888ff710"></script>
-    <script src="../../_static/sphinx_highlight.js?v=dc90522c"></script>
+    <script id="documentation_options" data-url_root="../../" src="../../_static/documentation_options.js"></script>
+    <script src="../../_static/jquery.js"></script>
+    <script src="../../_static/underscore.js"></script>
+    <script src="../../_static/doctools.js"></script>
     <script crossorigin="anonymous" integrity="sha256-Ae2Vz/4ePdIu6ZyI/5ZGsYnb+m0JlOmKPjt6XZ9JJkA=" src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.3.4/require.min.js"></script>
-    <script src="../../_static/sphinx-book-theme.12a9622fbb08dcb3a2a40b2c02b83a57.js?v=7c4c3336"></script>
+    <script src="../../_static/sphinx-book-theme.12a9622fbb08dcb3a2a40b2c02b83a57.js"></script>
     <link rel="index" title="Index" href="../../genindex/" />
     <link rel="search" title="Search" href="../../search/" />
     <link rel="next" title="14. Helpers" href="../helpers/" />
@@ -64,7 +65,7 @@
   <input type="search" class="form-control" name="q" id="search-input" placeholder="Search the docs ..." aria-label="Search the docs ..." autocomplete="off" >
 </form><nav class="bd-links" id="bd-docs-nav" aria-label="Main navigation">
     <div class="bd-toc-item active">
-        <p class="caption" role="heading">
+        <p class="caption">
  <span class="caption-text">
   Tutorials
  </span>
@@ -91,7 +92,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   User Guide
  </span>
@@ -123,7 +124,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   Python API Reference
  </span>
@@ -225,298 +226,16 @@
   <a class="reference internal nav-link" href="#module-miplearn.solvers.abstract">
    13.1. miplearn.solvers.abstract
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.solvers.abstract.AbstractModel">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       AbstractModel
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.abstract.AbstractModel.WHERE_CUTS">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         AbstractModel.WHERE_CUTS
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.abstract.AbstractModel.WHERE_DEFAULT">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         AbstractModel.WHERE_DEFAULT
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.abstract.AbstractModel.WHERE_LAZY">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         AbstractModel.WHERE_LAZY
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.abstract.AbstractModel.add_constrs">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         AbstractModel.add_constrs()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.abstract.AbstractModel.extract_after_load">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         AbstractModel.extract_after_load()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.abstract.AbstractModel.extract_after_lp">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         AbstractModel.extract_after_lp()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.abstract.AbstractModel.extract_after_mip">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         AbstractModel.extract_after_mip()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.abstract.AbstractModel.fix_variables">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         AbstractModel.fix_variables()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.abstract.AbstractModel.lazy_enforce">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         AbstractModel.lazy_enforce()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.abstract.AbstractModel.optimize">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         AbstractModel.optimize()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.abstract.AbstractModel.relax">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         AbstractModel.relax()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.abstract.AbstractModel.set_cuts">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         AbstractModel.set_cuts()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.abstract.AbstractModel.set_warm_starts">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         AbstractModel.set_warm_starts()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.abstract.AbstractModel.write">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         AbstractModel.write()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-  </ul>
  </li>
  <li class="toc-h2 nav-item toc-entry">
   <a class="reference internal nav-link" href="#module-miplearn.solvers.gurobi">
    13.2. miplearn.solvers.gurobi
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.solvers.gurobi.GurobiModel">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       GurobiModel
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.gurobi.GurobiModel.add_constr">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         GurobiModel.add_constr()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.gurobi.GurobiModel.add_constrs">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         GurobiModel.add_constrs()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.gurobi.GurobiModel.extract_after_load">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         GurobiModel.extract_after_load()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.gurobi.GurobiModel.extract_after_lp">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         GurobiModel.extract_after_lp()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.gurobi.GurobiModel.extract_after_mip">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         GurobiModel.extract_after_mip()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.gurobi.GurobiModel.fix_variables">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         GurobiModel.fix_variables()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.gurobi.GurobiModel.optimize">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         GurobiModel.optimize()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.gurobi.GurobiModel.relax">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         GurobiModel.relax()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.gurobi.GurobiModel.set_time_limit">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         GurobiModel.set_time_limit()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.gurobi.GurobiModel.set_warm_starts">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         GurobiModel.set_warm_starts()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.gurobi.GurobiModel.write">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         GurobiModel.write()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-  </ul>
  </li>
  <li class="toc-h2 nav-item toc-entry">
   <a class="reference internal nav-link" href="#module-miplearn.solvers.learning">
    13.3. miplearn.solvers.learning
   </a>
-  <ul class="nav section-nav flex-column">
-   <li class="toc-h3 nav-item toc-entry">
-    <a class="reference internal nav-link" href="#miplearn.solvers.learning.LearningSolver">
-     <code class="docutils literal notranslate">
-      <span class="pre">
-       LearningSolver
-      </span>
-     </code>
-    </a>
-    <ul class="nav section-nav flex-column">
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.learning.LearningSolver.fit">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         LearningSolver.fit()
-        </span>
-       </code>
-      </a>
-     </li>
-     <li class="toc-h4 nav-item toc-entry">
-      <a class="reference internal nav-link" href="#miplearn.solvers.learning.LearningSolver.optimize">
-       <code class="docutils literal notranslate">
-        <span class="pre">
-         LearningSolver.optimize()
-        </span>
-       </code>
-      </a>
-     </li>
-    </ul>
-   </li>
-  </ul>
  </li>
 </ul>
 
@@ -529,178 +248,178 @@
         
               <div>
                 
-  <section id="solvers">
-<h1><span class="section-number">13. </span>Solvers<a class="headerlink" href="#solvers" title="Link to this heading">¶</a></h1>
-<section id="module-miplearn.solvers.abstract">
-<span id="miplearn-solvers-abstract"></span><h2><span class="section-number">13.1. </span>miplearn.solvers.abstract<a class="headerlink" href="#module-miplearn.solvers.abstract" title="Link to this heading">¶</a></h2>
+  <div class="section" id="solvers">
+<h1><span class="section-number">13. </span>Solvers<a class="headerlink" href="#solvers" title="Permalink to this headline">¶</a></h1>
+<div class="section" id="module-miplearn.solvers.abstract">
+<span id="miplearn-solvers-abstract"></span><h2><span class="section-number">13.1. </span>miplearn.solvers.abstract<a class="headerlink" href="#module-miplearn.solvers.abstract" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.solvers.abstract.AbstractModel">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.solvers.abstract.</span></span><span class="sig-name descname"><span class="pre">AbstractModel</span></span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel" title="Link to this definition">¶</a></dt>
-<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">ABC</span></code></p>
+<dt id="miplearn.solvers.abstract.AbstractModel">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.solvers.abstract.</span></code><code class="sig-name descname"><span class="pre">AbstractModel</span></code><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">abc.ABC</span></code></p>
 <dl class="py attribute">
-<dt class="sig sig-object py" id="miplearn.solvers.abstract.AbstractModel.WHERE_CUTS">
-<span class="sig-name descname"><span class="pre">WHERE_CUTS</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">'cuts'</span></em><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.WHERE_CUTS" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.abstract.AbstractModel.WHERE_CUTS">
+<code class="sig-name descname"><span class="pre">WHERE_CUTS</span></code><em class="property"> <span class="pre">=</span> <span class="pre">'cuts'</span></em><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.WHERE_CUTS" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py attribute">
-<dt class="sig sig-object py" id="miplearn.solvers.abstract.AbstractModel.WHERE_DEFAULT">
-<span class="sig-name descname"><span class="pre">WHERE_DEFAULT</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">'default'</span></em><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.WHERE_DEFAULT" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.abstract.AbstractModel.WHERE_DEFAULT">
+<code class="sig-name descname"><span class="pre">WHERE_DEFAULT</span></code><em class="property"> <span class="pre">=</span> <span class="pre">'default'</span></em><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.WHERE_DEFAULT" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py attribute">
-<dt class="sig sig-object py" id="miplearn.solvers.abstract.AbstractModel.WHERE_LAZY">
-<span class="sig-name descname"><span class="pre">WHERE_LAZY</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">'lazy'</span></em><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.WHERE_LAZY" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.abstract.AbstractModel.WHERE_LAZY">
+<code class="sig-name descname"><span class="pre">WHERE_LAZY</span></code><em class="property"> <span class="pre">=</span> <span class="pre">'lazy'</span></em><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.WHERE_LAZY" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.abstract.AbstractModel.add_constrs">
-<em class="property"><span class="pre">abstract</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">add_constrs</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">var_names</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">constrs_lhs</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">constrs_sense</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">constrs_rhs</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Dict</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.add_constrs" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.abstract.AbstractModel.add_constrs">
+<em class="property"><span class="pre">abstract</span> </em><code class="sig-name descname"><span class="pre">add_constrs</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">var_names</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">constrs_lhs</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">constrs_sense</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">constrs_rhs</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Dict</span><span class="p"><span class="pre">]</span></span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.add_constrs" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.abstract.AbstractModel.extract_after_load">
-<em class="property"><span class="pre">abstract</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">extract_after_load</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">H5File</span></a></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.extract_after_load" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.abstract.AbstractModel.extract_after_load">
+<em class="property"><span class="pre">abstract</span> </em><code class="sig-name descname"><span class="pre">extract_after_load</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">miplearn.h5.H5File</span></a></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.extract_after_load" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.abstract.AbstractModel.extract_after_lp">
-<em class="property"><span class="pre">abstract</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">extract_after_lp</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">H5File</span></a></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.extract_after_lp" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.abstract.AbstractModel.extract_after_lp">
+<em class="property"><span class="pre">abstract</span> </em><code class="sig-name descname"><span class="pre">extract_after_lp</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">miplearn.h5.H5File</span></a></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.extract_after_lp" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.abstract.AbstractModel.extract_after_mip">
-<em class="property"><span class="pre">abstract</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">extract_after_mip</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">H5File</span></a></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.extract_after_mip" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.abstract.AbstractModel.extract_after_mip">
+<em class="property"><span class="pre">abstract</span> </em><code class="sig-name descname"><span class="pre">extract_after_mip</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">miplearn.h5.H5File</span></a></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.extract_after_mip" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.abstract.AbstractModel.fix_variables">
-<em class="property"><span class="pre">abstract</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">fix_variables</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">var_names</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_values</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Dict</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.fix_variables" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.abstract.AbstractModel.fix_variables">
+<em class="property"><span class="pre">abstract</span> </em><code class="sig-name descname"><span class="pre">fix_variables</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">var_names</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_values</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Dict</span><span class="p"><span class="pre">]</span></span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.fix_variables" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.abstract.AbstractModel.lazy_enforce">
-<span class="sig-name descname"><span class="pre">lazy_enforce</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">violations</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">Any</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.lazy_enforce" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.abstract.AbstractModel.lazy_enforce">
+<code class="sig-name descname"><span class="pre">lazy_enforce</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">violations</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">Any</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.lazy_enforce" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.abstract.AbstractModel.optimize">
-<em class="property"><span class="pre">abstract</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">optimize</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.optimize" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.abstract.AbstractModel.optimize">
+<em class="property"><span class="pre">abstract</span> </em><code class="sig-name descname"><span class="pre">optimize</span></code><span class="sig-paren">(</span><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.optimize" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.abstract.AbstractModel.relax">
-<em class="property"><span class="pre">abstract</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">relax</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><a class="reference internal" href="#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">AbstractModel</span></a></span></span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.relax" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.abstract.AbstractModel.relax">
+<em class="property"><span class="pre">abstract</span> </em><code class="sig-name descname"><span class="pre">relax</span></code><span class="sig-paren">(</span><span class="sig-paren">)</span> &#x2192; <a class="reference internal" href="#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">miplearn.solvers.abstract.AbstractModel</span></a><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.relax" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.abstract.AbstractModel.set_cuts">
-<span class="sig-name descname"><span class="pre">set_cuts</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">cuts</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">List</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.set_cuts" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.abstract.AbstractModel.set_cuts">
+<code class="sig-name descname"><span class="pre">set_cuts</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">cuts</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">List</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.set_cuts" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.abstract.AbstractModel.set_warm_starts">
-<em class="property"><span class="pre">abstract</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">set_warm_starts</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">var_names</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_values</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Dict</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.set_warm_starts" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.abstract.AbstractModel.set_warm_starts">
+<em class="property"><span class="pre">abstract</span> </em><code class="sig-name descname"><span class="pre">set_warm_starts</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">var_names</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_values</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Dict</span><span class="p"><span class="pre">]</span></span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.set_warm_starts" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.abstract.AbstractModel.write">
-<em class="property"><span class="pre">abstract</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">write</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">filename</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.write" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.abstract.AbstractModel.write">
+<em class="property"><span class="pre">abstract</span> </em><code class="sig-name descname"><span class="pre">write</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">filename</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">str</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.abstract.AbstractModel.write" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 </dd></dl>
 
-</section>
-<section id="module-miplearn.solvers.gurobi">
-<span id="miplearn-solvers-gurobi"></span><h2><span class="section-number">13.2. </span>miplearn.solvers.gurobi<a class="headerlink" href="#module-miplearn.solvers.gurobi" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="module-miplearn.solvers.gurobi">
+<span id="miplearn-solvers-gurobi"></span><h2><span class="section-number">13.2. </span>miplearn.solvers.gurobi<a class="headerlink" href="#module-miplearn.solvers.gurobi" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.solvers.gurobi.GurobiModel">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.solvers.gurobi.</span></span><span class="sig-name descname"><span class="pre">GurobiModel</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">inner</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Model</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">lazy_separate</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Callable</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">lazy_enforce</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Callable</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">cuts_separate</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Callable</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">cuts_enforce</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Callable</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel" title="Link to this definition">¶</a></dt>
-<dd><p>Bases: <a class="reference internal" href="#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><code class="xref py py-class docutils literal notranslate"><span class="pre">AbstractModel</span></code></a></p>
+<dt id="miplearn.solvers.gurobi.GurobiModel">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.solvers.gurobi.</span></code><code class="sig-name descname"><span class="pre">GurobiModel</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">inner</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">gurobipy.Model</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">lazy_separate</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Callable</span><span class="p"><span class="pre">]</span></span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">lazy_enforce</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Callable</span><span class="p"><span class="pre">]</span></span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">cuts_separate</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Callable</span><span class="p"><span class="pre">]</span></span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">cuts_enforce</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Callable</span><span class="p"><span class="pre">]</span></span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a class="reference internal" href="#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><code class="xref py py-class docutils literal notranslate"><span class="pre">miplearn.solvers.abstract.AbstractModel</span></code></a></p>
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.gurobi.GurobiModel.add_constr">
-<span class="sig-name descname"><span class="pre">add_constr</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">constr</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Any</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.add_constr" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.gurobi.GurobiModel.add_constr">
+<code class="sig-name descname"><span class="pre">add_constr</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">constr</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Any</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.add_constr" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.gurobi.GurobiModel.add_constrs">
-<span class="sig-name descname"><span class="pre">add_constrs</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">var_names</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">constrs_lhs</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">constrs_sense</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">constrs_rhs</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Dict</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.add_constrs" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.gurobi.GurobiModel.add_constrs">
+<code class="sig-name descname"><span class="pre">add_constrs</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">var_names</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">constrs_lhs</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">constrs_sense</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">constrs_rhs</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Dict</span><span class="p"><span class="pre">]</span></span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.add_constrs" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.gurobi.GurobiModel.extract_after_load">
-<span class="sig-name descname"><span class="pre">extract_after_load</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">H5File</span></a></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.extract_after_load" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.gurobi.GurobiModel.extract_after_load">
+<code class="sig-name descname"><span class="pre">extract_after_load</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">miplearn.h5.H5File</span></a></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.extract_after_load" title="Permalink to this definition">¶</a></dt>
 <dd><p>Given a model that has just been loaded, extracts static problem
 features, such as variable names and types, objective coefficients, etc.</p>
 </dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.gurobi.GurobiModel.extract_after_lp">
-<span class="sig-name descname"><span class="pre">extract_after_lp</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">H5File</span></a></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.extract_after_lp" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.gurobi.GurobiModel.extract_after_lp">
+<code class="sig-name descname"><span class="pre">extract_after_lp</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">miplearn.h5.H5File</span></a></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.extract_after_lp" title="Permalink to this definition">¶</a></dt>
 <dd><p>Given a linear programming model that has just been solved, extracts
 dynamic problem features, such as optimal LP solution, basis status,
 etc.</p>
 </dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.gurobi.GurobiModel.extract_after_mip">
-<span class="sig-name descname"><span class="pre">extract_after_mip</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">H5File</span></a></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.extract_after_mip" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.gurobi.GurobiModel.extract_after_mip">
+<code class="sig-name descname"><span class="pre">extract_after_mip</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">h5</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><a class="reference internal" href="../helpers/#miplearn.h5.H5File" title="miplearn.h5.H5File"><span class="pre">miplearn.h5.H5File</span></a></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.extract_after_mip" title="Permalink to this definition">¶</a></dt>
 <dd><p>Given a mixed-integer linear programming model that has just been
 solved, extracts dynamic problem features, such as optimal MIP solution.</p>
 </dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.gurobi.GurobiModel.fix_variables">
-<span class="sig-name descname"><span class="pre">fix_variables</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">var_names</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_values</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Dict</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.fix_variables" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.gurobi.GurobiModel.fix_variables">
+<code class="sig-name descname"><span class="pre">fix_variables</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">var_names</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_values</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Dict</span><span class="p"><span class="pre">]</span></span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.fix_variables" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.gurobi.GurobiModel.optimize">
-<span class="sig-name descname"><span class="pre">optimize</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.optimize" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.gurobi.GurobiModel.optimize">
+<code class="sig-name descname"><span class="pre">optimize</span></code><span class="sig-paren">(</span><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.optimize" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.gurobi.GurobiModel.relax">
-<span class="sig-name descname"><span class="pre">relax</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><a class="reference internal" href="#miplearn.solvers.gurobi.GurobiModel" title="miplearn.solvers.gurobi.GurobiModel"><span class="pre">GurobiModel</span></a></span></span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.relax" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.gurobi.GurobiModel.relax">
+<code class="sig-name descname"><span class="pre">relax</span></code><span class="sig-paren">(</span><span class="sig-paren">)</span> &#x2192; <a class="reference internal" href="#miplearn.solvers.gurobi.GurobiModel" title="miplearn.solvers.gurobi.GurobiModel"><span class="pre">miplearn.solvers.gurobi.GurobiModel</span></a><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.relax" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.gurobi.GurobiModel.set_time_limit">
-<span class="sig-name descname"><span class="pre">set_time_limit</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">time_limit_sec</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">float</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.set_time_limit" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.gurobi.GurobiModel.set_time_limit">
+<code class="sig-name descname"><span class="pre">set_time_limit</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">time_limit_sec</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">float</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.set_time_limit" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.gurobi.GurobiModel.set_warm_starts">
-<span class="sig-name descname"><span class="pre">set_warm_starts</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">var_names</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_values</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Dict</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.set_warm_starts" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.gurobi.GurobiModel.set_warm_starts">
+<code class="sig-name descname"><span class="pre">set_warm_starts</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">var_names</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">var_values</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">numpy.ndarray</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stats</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Dict</span><span class="p"><span class="pre">]</span></span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.set_warm_starts" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.gurobi.GurobiModel.write">
-<span class="sig-name descname"><span class="pre">write</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">filename</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.write" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.gurobi.GurobiModel.write">
+<code class="sig-name descname"><span class="pre">write</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">filename</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">str</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.gurobi.GurobiModel.write" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 </dd></dl>
 
-</section>
-<section id="module-miplearn.solvers.learning">
-<span id="miplearn-solvers-learning"></span><h2><span class="section-number">13.3. </span>miplearn.solvers.learning<a class="headerlink" href="#module-miplearn.solvers.learning" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="module-miplearn.solvers.learning">
+<span id="miplearn-solvers-learning"></span><h2><span class="section-number">13.3. </span>miplearn.solvers.learning<a class="headerlink" href="#module-miplearn.solvers.learning" title="Permalink to this headline">¶</a></h2>
 <dl class="py class">
-<dt class="sig sig-object py" id="miplearn.solvers.learning.LearningSolver">
-<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">miplearn.solvers.learning.</span></span><span class="sig-name descname"><span class="pre">LearningSolver</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">components</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">Any</span><span class="p"><span class="pre">]</span></span></span></em>, <em class="sig-param"><span class="n"><span class="pre">skip_lp</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">bool</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">False</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.solvers.learning.LearningSolver" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.learning.LearningSolver">
+<em class="property"><span class="pre">class</span> </em><code class="sig-prename descclassname"><span class="pre">miplearn.solvers.learning.</span></code><code class="sig-name descname"><span class="pre">LearningSolver</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">components</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">Any</span><span class="p"><span class="pre">]</span></span></span></em>, <em class="sig-param"><span class="n"><span class="pre">skip_lp</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">bool</span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">False</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#miplearn.solvers.learning.LearningSolver" title="Permalink to this definition">¶</a></dt>
 <dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></p>
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.learning.LearningSolver.fit">
-<span class="sig-name descname"><span class="pre">fit</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">data_filenames</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="headerlink" href="#miplearn.solvers.learning.LearningSolver.fit" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.learning.LearningSolver.fit">
+<code class="sig-name descname"><span class="pre">fit</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">data_filenames</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">List</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">None</span><a class="headerlink" href="#miplearn.solvers.learning.LearningSolver.fit" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="py method">
-<dt class="sig sig-object py" id="miplearn.solvers.learning.LearningSolver.optimize">
-<span class="sig-name descname"><span class="pre">optimize</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">model</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><a class="reference internal" href="#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">AbstractModel</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">build_model</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Callable</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">None</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">Dict</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">,</span></span><span class="w"> </span><span class="pre">Any</span><span class="p"><span class="pre">]</span></span></span></span><a class="headerlink" href="#miplearn.solvers.learning.LearningSolver.optimize" title="Link to this definition">¶</a></dt>
+<dt id="miplearn.solvers.learning.LearningSolver.optimize">
+<code class="sig-name descname"><span class="pre">optimize</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">model</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Union</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">,</span> </span><a class="reference internal" href="#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">miplearn.solvers.abstract.AbstractModel</span></a><span class="p"><span class="pre">]</span></span></span></em>, <em class="sig-param"><span class="n"><span class="pre">build_model</span></span><span class="p"><span class="pre">:</span></span> <span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Callable</span><span class="p"><span class="pre">]</span></span></span> <span class="o"><span class="pre">=</span></span> <span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span> &#x2192; <span class="pre">Tuple</span><span class="p"><span class="pre">[</span></span><a class="reference internal" href="#miplearn.solvers.abstract.AbstractModel" title="miplearn.solvers.abstract.AbstractModel"><span class="pre">miplearn.solvers.abstract.AbstractModel</span></a><span class="p"><span class="pre">,</span> </span><span class="pre">Dict</span><span class="p"><span class="pre">[</span></span><span class="pre">str</span><span class="p"><span class="pre">,</span> </span><span class="pre">Any</span><span class="p"><span class="pre">]</span></span><span class="p"><span class="pre">]</span></span><a class="headerlink" href="#miplearn.solvers.learning.LearningSolver.optimize" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 </dd></dl>
 
-</section>
-</section>
+</div>
+</div>
 
 
               </div>

0.4/genindex/index.html

@@ -1,6 +1,7 @@
+
 <!DOCTYPE html>
 
-<html lang="en" data-content_root="../">
+<html>
   <head>
     <meta charset="utf-8" />
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@@ -21,17 +22,27 @@
       
 
     
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   <link rel="preload" as="script" href="../_static/js/index.1c5a1a01449ed65a7b51.js">
 
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     <meta name="viewport" content="width=device-width, initial-scale=1" />
@@ -61,7 +72,7 @@
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 </form><nav class="bd-links" id="bd-docs-nav" aria-label="Main navigation">
     <div class="bd-toc-item active">
-        <p class="caption" role="heading">
+        <p class="caption">
  <span class="caption-text">
   Tutorials
  </span>
@@ -88,7 +99,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   User Guide
  </span>
@@ -120,7 +131,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   Python API Reference
  </span>

0.4/guide/collectors/index.html

@@ -1,10 +1,10 @@
+
 <!DOCTYPE html>
 
-<html lang="en" data-content_root="../../">
+<html>
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-    <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
-
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>6. Training Data Collectors &#8212; MIPLearn 0.4</title>
     
   <link href="../../_static/css/theme.css" rel="stylesheet" />
@@ -22,21 +22,21 @@
       
 
     
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   <link rel="preload" as="script" href="../../_static/js/index.1c5a1a01449ed65a7b51.js">
 
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     <link rel="index" title="Index" href="../../genindex/" />
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     <link rel="next" title="7. Feature Extractors" href="../features/" />
@@ -68,7 +68,7 @@
   <input type="search" class="form-control" name="q" id="search-input" placeholder="Search the docs ..." aria-label="Search the docs ..." autocomplete="off" >
 </form><nav class="bd-links" id="bd-docs-nav" aria-label="Main navigation">
     <div class="bd-toc-item active">
-        <p class="caption" role="heading">
+        <p class="caption">
  <span class="caption-text">
   Tutorials
  </span>
@@ -95,7 +95,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   User Guide
  </span>
@@ -127,7 +127,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   Python API Reference
  </span>
@@ -270,17 +270,17 @@
         
               <div>
                 
-  <section id="Training-Data-Collectors">
-<h1><span class="section-number">6. </span>Training Data Collectors<a class="headerlink" href="#Training-Data-Collectors" title="Link to this heading">¶</a></h1>
+  <div class="section" id="Training-Data-Collectors">
+<h1><span class="section-number">6. </span>Training Data Collectors<a class="headerlink" href="#Training-Data-Collectors" title="Permalink to this headline">¶</a></h1>
 <p>The first step in solving mixed-integer optimization problems with the assistance of supervised machine learning methods is solving a large set of training instances and collecting the raw training data. In this section, we describe the various training data collectors included in MIPLearn. Additionally, the framework follows the convention of storing all training data in files with a specific data format (namely, HDF5). In this section, we briefly describe this format and the rationale for
 choosing it.</p>
-<section id="Overview">
-<h2><span class="section-number">6.1. </span>Overview<a class="headerlink" href="#Overview" title="Link to this heading">¶</a></h2>
+<div class="section" id="Overview">
+<h2><span class="section-number">6.1. </span>Overview<a class="headerlink" href="#Overview" title="Permalink to this headline">¶</a></h2>
 <p>In MIPLearn, a <strong>collector</strong> is a class that solves or analyzes the problem and collects raw data which may be later useful for machine learning methods. Collectors, by convention, take as input: (i) a list of problem data filenames, in gzipped pickle format, ending with <code class="docutils literal notranslate"><span class="pre">.pkl.gz</span></code>; (ii) a function that builds the optimization model, such as <code class="docutils literal notranslate"><span class="pre">build_tsp_model</span></code>. After processing is done, collectors store the training data in a HDF5 file located alongside with the problem data. For example, if
 the problem data is stored in file <code class="docutils literal notranslate"><span class="pre">problem.pkl.gz</span></code>, then the collector writes to <code class="docutils literal notranslate"><span class="pre">problem.h5</span></code>. Collectors are, in general, very time consuming, as they may need to solve the problem to optimality, potentially multiple times.</p>
-</section>
-<section id="HDF5-Format">
-<h2><span class="section-number">6.2. </span>HDF5 Format<a class="headerlink" href="#HDF5-Format" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="HDF5-Format">
+<h2><span class="section-number">6.2. </span>HDF5 Format<a class="headerlink" href="#HDF5-Format" title="Permalink to this headline">¶</a></h2>
 <p>MIPLearn stores all training data in <a class="reference external" href="HDF5">HDF5</a> (Hierarchical Data Format, Version 5) files. The HDF format was originally developed by the <a class="reference external" href="https://en.wikipedia.org/wiki/National_Center_for_Supercomputing_Applications">National Center for Supercomputing Applications</a> (NCSA) for storing and organizing large amounts of data, and supports a variety of data types, including integers, floating-point numbers, strings, and arrays. Compared to other formats, such as CSV, JSON or SQLite, the
 HDF5 format provides several advantages for MIPLearn, including:</p>
 <ul class="simple">
@@ -292,41 +292,41 @@ HDF5 format provides several advantages for MIPLearn, including:</p>
 <p>MIPLearn currently uses HDF5 as simple key-value storage for numerical data; more advanced features of the format, such as metadata, are not currently used. Although files generated by MIPLearn can be read with any HDF5 library, such as <a class="reference external" href="https://www.h5py.org/">h5py</a>, some convenience functions are provided to make the access more simple and less error-prone. Specifically, the class <a class="reference external" href="../../api/helpers/#miplearn.h5.H5File">H5File</a>, which is built on top of h5py, provides the methods
 <a class="reference external" href="../../api/helpers/#miplearn.h5.H5File.put_scalar">put_scalar</a>, <a class="reference external" href="../../api/helpers/#miplearn.h5.H5File.put_scalar">put_array</a>, <a class="reference external" href="../../api/helpers/#miplearn.h5.H5File.put_scalar">put_sparse</a>, <a class="reference external" href="../../api/helpers/#miplearn.h5.H5File.put_scalar">put_bytes</a> to store, respectively, scalar values, dense multi-dimensional arrays, sparse multi-dimensional arrays and arbitrary binary data. The corresponding <em>get</em> methods are also provided. Compared to pure h5py methods, these methods
 automatically perform type-checking and gzip compression. The example below shows their usage.</p>
-<section id="Example">
-<h3>Example<a class="headerlink" href="#Example" title="Link to this heading">¶</a></h3>
+<div class="section" id="Example">
+<h3>Example<a class="headerlink" href="#Example" title="Permalink to this headline">¶</a></h3>
 <div class="nbinput docutils container">
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[1]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">numpy</span> <span class="k">as</span> <span class="nn">np</span>
-<span class="kn">import</span> <span class="nn">scipy.sparse</span>
-
-<span class="kn">from</span> <span class="nn">miplearn.h5</span> <span class="kn">import</span> <span class="n">H5File</span>
-
-<span class="c1"># Set random seed to make example reproducible</span>
-<span class="n">np</span><span class="o">.</span><span class="n">random</span><span class="o">.</span><span class="n">seed</span><span class="p">(</span><span class="mi">42</span><span class="p">)</span>
-
-<span class="c1"># Create a new empty HDF5 file</span>
-<span class="k">with</span> <span class="n">H5File</span><span class="p">(</span><span class="s2">&quot;test.h5&quot;</span><span class="p">,</span> <span class="s2">&quot;w&quot;</span><span class="p">)</span> <span class="k">as</span> <span class="n">h5</span><span class="p">:</span>
-    <span class="c1"># Store a scalar</span>
-    <span class="n">h5</span><span class="o">.</span><span class="n">put_scalar</span><span class="p">(</span><span class="s2">&quot;x1&quot;</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
-    <span class="n">h5</span><span class="o">.</span><span class="n">put_scalar</span><span class="p">(</span><span class="s2">&quot;x2&quot;</span><span class="p">,</span> <span class="s2">&quot;hello world&quot;</span><span class="p">)</span>
-
-    <span class="c1"># Store a dense array and a dense matrix</span>
-    <span class="n">h5</span><span class="o">.</span><span class="n">put_array</span><span class="p">(</span><span class="s2">&quot;x3&quot;</span><span class="p">,</span> <span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">([</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">]))</span>
-    <span class="n">h5</span><span class="o">.</span><span class="n">put_array</span><span class="p">(</span><span class="s2">&quot;x4&quot;</span><span class="p">,</span> <span class="n">np</span><span class="o">.</span><span class="n">random</span><span class="o">.</span><span class="n">rand</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">3</span><span class="p">))</span>
-
-    <span class="c1"># Store a sparse matrix</span>
-    <span class="n">h5</span><span class="o">.</span><span class="n">put_sparse</span><span class="p">(</span><span class="s2">&quot;x5&quot;</span><span class="p">,</span> <span class="n">scipy</span><span class="o">.</span><span class="n">sparse</span><span class="o">.</span><span class="n">random</span><span class="p">(</span><span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">))</span>
-
-<span class="c1"># Re-open the file we just created and print</span>
-<span class="c1"># previously-stored data</span>
-<span class="k">with</span> <span class="n">H5File</span><span class="p">(</span><span class="s2">&quot;test.h5&quot;</span><span class="p">,</span> <span class="s2">&quot;r&quot;</span><span class="p">)</span> <span class="k">as</span> <span class="n">h5</span><span class="p">:</span>
-    <span class="nb">print</span><span class="p">(</span><span class="s2">&quot;x1 =&quot;</span><span class="p">,</span> <span class="n">h5</span><span class="o">.</span><span class="n">get_scalar</span><span class="p">(</span><span class="s2">&quot;x1&quot;</span><span class="p">))</span>
-    <span class="nb">print</span><span class="p">(</span><span class="s2">&quot;x2 =&quot;</span><span class="p">,</span> <span class="n">h5</span><span class="o">.</span><span class="n">get_scalar</span><span class="p">(</span><span class="s2">&quot;x2&quot;</span><span class="p">))</span>
-    <span class="nb">print</span><span class="p">(</span><span class="s2">&quot;x3 =&quot;</span><span class="p">,</span> <span class="n">h5</span><span class="o">.</span><span class="n">get_array</span><span class="p">(</span><span class="s2">&quot;x3&quot;</span><span class="p">))</span>
-    <span class="nb">print</span><span class="p">(</span><span class="s2">&quot;x4 =&quot;</span><span class="p">,</span> <span class="n">h5</span><span class="o">.</span><span class="n">get_array</span><span class="p">(</span><span class="s2">&quot;x4&quot;</span><span class="p">))</span>
-    <span class="nb">print</span><span class="p">(</span><span class="s2">&quot;x5 =&quot;</span><span class="p">,</span> <span class="n">h5</span><span class="o">.</span><span class="n">get_sparse</span><span class="p">(</span><span class="s2">&quot;x5&quot;</span><span class="p">))</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>import numpy as np
+import scipy.sparse
+
+from miplearn.h5 import H5File
+
+# Set random seed to make example reproducible
+np.random.seed(42)
+
+# Create a new empty HDF5 file
+with H5File(&quot;test.h5&quot;, &quot;w&quot;) as h5:
+    # Store a scalar
+    h5.put_scalar(&quot;x1&quot;, 1)
+    h5.put_scalar(&quot;x2&quot;, &quot;hello world&quot;)
+
+    # Store a dense array and a dense matrix
+    h5.put_array(&quot;x3&quot;, np.array([1, 2, 3]))
+    h5.put_array(&quot;x4&quot;, np.random.rand(3, 3))
+
+    # Store a sparse matrix
+    h5.put_sparse(&quot;x5&quot;, scipy.sparse.random(5, 5, 0.5))
+
+# Re-open the file we just created and print
+# previously-stored data
+with H5File(&quot;test.h5&quot;, &quot;r&quot;) as h5:
+    print(&quot;x1 =&quot;, h5.get_scalar(&quot;x1&quot;))
+    print(&quot;x2 =&quot;, h5.get_scalar(&quot;x2&quot;))
+    print(&quot;x3 =&quot;, h5.get_array(&quot;x3&quot;))
+    print(&quot;x4 =&quot;, h5.get_array(&quot;x4&quot;))
+    print(&quot;x5 =&quot;, h5.get_sparse(&quot;x5&quot;))
 </pre></div>
 </div>
 </div>
@@ -355,10 +355,10 @@ x5 =   (3, 2)   0.6803075671195984
   (3, 0)        0.83319491147995
 </pre></div></div>
 </div>
-</section>
-</section>
-<section id="Basic-collector">
-<h2><span class="section-number">6.3. </span>Basic collector<a class="headerlink" href="#Basic-collector" title="Link to this heading">¶</a></h2>
+</div>
+</div>
+<div class="section" id="Basic-collector">
+<h2><span class="section-number">6.3. </span>Basic collector<a class="headerlink" href="#Basic-collector" title="Permalink to this headline">¶</a></h2>
 <p><a class="reference external" href="../../api/collectors/#miplearn.collectors.basic.BasicCollector">BasicCollector</a> is the most fundamental collector, and performs the following steps:</p>
 <ol class="arabic simple">
 <li><p>Extracts all model data, such as objective function and constraint right-hand sides into numpy arrays, which can later be easily and efficiently accessed without rebuilding the model or invoking the solver;</p></li>
@@ -366,9 +366,14 @@ x5 =   (3, 2)   0.6803075671195984
 <li><p>Solves the original mixed-integer optimization problem to optimality and stores its optimal solution, along with solve statistics, such as number of explored nodes and wallclock time.</p></li>
 </ol>
 <p>Data extracted in Phases 1, 2 and 3 above are prefixed, respectively as <code class="docutils literal notranslate"><span class="pre">static_</span></code>, <code class="docutils literal notranslate"><span class="pre">lp_</span></code> and <code class="docutils literal notranslate"><span class="pre">mip_</span></code>. The entire set of fields is shown in the table below.</p>
-<section id="Data-fields">
-<h3>Data fields<a class="headerlink" href="#Data-fields" title="Link to this heading">¶</a></h3>
+<div class="section" id="Data-fields">
+<h3>Data fields<a class="headerlink" href="#Data-fields" title="Permalink to this headline">¶</a></h3>
 <table class="docutils align-default">
+<colgroup>
+<col style="width: 18%" />
+<col style="width: 11%" />
+<col style="width: 72%" />
+</colgroup>
 <thead>
 <tr class="row-odd"><th class="head"><p>Field</p></th>
 <th class="head"><p>Type</p></th>
@@ -490,53 +495,53 @@ x5 =   (3, 2)   0.6803075671195984
 </tr>
 </tbody>
 </table>
-</section>
-<section id="id1">
-<h3>Example<a class="headerlink" href="#id1" title="Link to this heading">¶</a></h3>
+</div>
+<div class="section" id="id1">
+<h3>Example<a class="headerlink" href="#id1" title="Permalink to this headline">¶</a></h3>
 <p>The example below shows how to generate a few random instances of the traveling salesman problem, store its problem data, run the collector and print some of the training data to screen.</p>
 <div class="nbinput docutils container">
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[2]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">random</span>
-<span class="kn">import</span> <span class="nn">numpy</span> <span class="k">as</span> <span class="nn">np</span>
-<span class="kn">from</span> <span class="nn">scipy.stats</span> <span class="kn">import</span> <span class="n">uniform</span><span class="p">,</span> <span class="n">randint</span>
-<span class="kn">from</span> <span class="nn">glob</span> <span class="kn">import</span> <span class="n">glob</span>
-
-<span class="kn">from</span> <span class="nn">miplearn.problems.tsp</span> <span class="kn">import</span> <span class="p">(</span>
-    <span class="n">TravelingSalesmanGenerator</span><span class="p">,</span>
-    <span class="n">build_tsp_model_gurobipy</span><span class="p">,</span>
-<span class="p">)</span>
-<span class="kn">from</span> <span class="nn">miplearn.io</span> <span class="kn">import</span> <span class="n">write_pkl_gz</span>
-<span class="kn">from</span> <span class="nn">miplearn.h5</span> <span class="kn">import</span> <span class="n">H5File</span>
-<span class="kn">from</span> <span class="nn">miplearn.collectors.basic</span> <span class="kn">import</span> <span class="n">BasicCollector</span>
-
-<span class="c1"># Set random seed to make example reproducible.</span>
-<span class="n">random</span><span class="o">.</span><span class="n">seed</span><span class="p">(</span><span class="mi">42</span><span class="p">)</span>
-<span class="n">np</span><span class="o">.</span><span class="n">random</span><span class="o">.</span><span class="n">seed</span><span class="p">(</span><span class="mi">42</span><span class="p">)</span>
-
-<span class="c1"># Generate a few instances of the traveling salesman problem.</span>
-<span class="n">data</span> <span class="o">=</span> <span class="n">TravelingSalesmanGenerator</span><span class="p">(</span>
-    <span class="n">n</span><span class="o">=</span><span class="n">randint</span><span class="p">(</span><span class="n">low</span><span class="o">=</span><span class="mi">10</span><span class="p">,</span> <span class="n">high</span><span class="o">=</span><span class="mi">11</span><span class="p">),</span>
-    <span class="n">x</span><span class="o">=</span><span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">1000.0</span><span class="p">),</span>
-    <span class="n">y</span><span class="o">=</span><span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">1000.0</span><span class="p">),</span>
-    <span class="n">gamma</span><span class="o">=</span><span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">0.90</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">0.20</span><span class="p">),</span>
-    <span class="n">fix_cities</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span>
-    <span class="nb">round</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span>
-<span class="p">)</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="mi">10</span><span class="p">)</span>
-
-<span class="c1"># Save instance data to data/tsp/00000.pkl.gz, data/tsp/00001.pkl.gz, ...</span>
-<span class="n">write_pkl_gz</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="s2">&quot;data/tsp&quot;</span><span class="p">)</span>
-
-<span class="c1"># Solve all instances and collect basic solution information.</span>
-<span class="c1"># Process at most four instances in parallel.</span>
-<span class="n">bc</span> <span class="o">=</span> <span class="n">BasicCollector</span><span class="p">()</span>
-<span class="n">bc</span><span class="o">.</span><span class="n">collect</span><span class="p">(</span><span class="n">glob</span><span class="p">(</span><span class="s2">&quot;data/tsp/*.pkl.gz&quot;</span><span class="p">),</span> <span class="n">build_tsp_model_gurobipy</span><span class="p">,</span> <span class="n">n_jobs</span><span class="o">=</span><span class="mi">4</span><span class="p">)</span>
-
-<span class="c1"># Read and print some training data for the first instance.</span>
-<span class="k">with</span> <span class="n">H5File</span><span class="p">(</span><span class="s2">&quot;data/tsp/00000.h5&quot;</span><span class="p">,</span> <span class="s2">&quot;r&quot;</span><span class="p">)</span> <span class="k">as</span> <span class="n">h5</span><span class="p">:</span>
-    <span class="nb">print</span><span class="p">(</span><span class="s2">&quot;lp_obj_value = &quot;</span><span class="p">,</span> <span class="n">h5</span><span class="o">.</span><span class="n">get_scalar</span><span class="p">(</span><span class="s2">&quot;lp_obj_value&quot;</span><span class="p">))</span>
-    <span class="nb">print</span><span class="p">(</span><span class="s2">&quot;mip_obj_value = &quot;</span><span class="p">,</span> <span class="n">h5</span><span class="o">.</span><span class="n">get_scalar</span><span class="p">(</span><span class="s2">&quot;mip_obj_value&quot;</span><span class="p">))</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>import random
+import numpy as np
+from scipy.stats import uniform, randint
+from glob import glob
+
+from miplearn.problems.tsp import (
+    TravelingSalesmanGenerator,
+    build_tsp_model_gurobipy,
+)
+from miplearn.io import write_pkl_gz
+from miplearn.h5 import H5File
+from miplearn.collectors.basic import BasicCollector
+
+# Set random seed to make example reproducible.
+random.seed(42)
+np.random.seed(42)
+
+# Generate a few instances of the traveling salesman problem.
+data = TravelingSalesmanGenerator(
+    n=randint(low=10, high=11),
+    x=uniform(loc=0.0, scale=1000.0),
+    y=uniform(loc=0.0, scale=1000.0),
+    gamma=uniform(loc=0.90, scale=0.20),
+    fix_cities=True,
+    round=True,
+).generate(10)
+
+# Save instance data to data/tsp/00000.pkl.gz, data/tsp/00001.pkl.gz, ...
+write_pkl_gz(data, &quot;data/tsp&quot;)
+
+# Solve all instances and collect basic solution information.
+# Process at most four instances in parallel.
+bc = BasicCollector()
+bc.collect(glob(&quot;data/tsp/*.pkl.gz&quot;), build_tsp_model_gurobipy, n_jobs=4)
+
+# Read and print some training data for the first instance.
+with H5File(&quot;data/tsp/00000.h5&quot;, &quot;r&quot;) as h5:
+    print(&quot;lp_obj_value = &quot;, h5.get_scalar(&quot;lp_obj_value&quot;))
+    print(&quot;mip_obj_value = &quot;, h5.get_scalar(&quot;mip_obj_value&quot;))
 </pre></div>
 </div>
 </div>
@@ -557,9 +562,9 @@ mip_obj_value =  2921.0
 </pre></div>
 </div>
 </div>
-</section>
-</section>
-</section>
+</div>
+</div>
+</div>
 
 
               </div>

0.4/guide/features/index.html

@@ -1,10 +1,10 @@
+
 <!DOCTYPE html>
 
-<html lang="en" data-content_root="../../">
+<html>
   <head>
     <meta charset="utf-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
-
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>7. Feature Extractors &#8212; MIPLearn 0.4</title>
     
   <link href="../../_static/css/theme.css" rel="stylesheet" />
@@ -22,21 +22,22 @@
       
 
     
-    <link rel="stylesheet" type="text/css" href="../../_static/pygments.css?v=362ab14a" />
-    <link rel="stylesheet" type="text/css" href="../../_static/sphinx-book-theme.acff12b8f9c144ce68a297486a2fa670.css?v=b0dfe17c" />
-    <link rel="stylesheet" type="text/css" href="../../_static/nbsphinx-code-cells.css?v=2aa19091" />
-    <link rel="stylesheet" type="text/css" href="../../_static/custom.css?v=f8244a84" />
+    <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
+    <link rel="stylesheet" href="../../_static/sphinx-book-theme.acff12b8f9c144ce68a297486a2fa670.css" type="text/css" />
+    <link rel="stylesheet" type="text/css" href="../../_static/nbsphinx-code-cells.css" />
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+    <link rel="stylesheet" type="text/css" href="../../_static/custom.css" />
     
   <link rel="preload" as="script" href="../../_static/js/index.1c5a1a01449ed65a7b51.js">
 
-    <script src="../../_static/documentation_options.js?v=751a5dd3"></script>
-    <script src="../../_static/doctools.js?v=888ff710"></script>
-    <script src="../../_static/sphinx_highlight.js?v=dc90522c"></script>
+    <script id="documentation_options" data-url_root="../../" src="../../_static/documentation_options.js"></script>
+    <script src="../../_static/jquery.js"></script>
+    <script src="../../_static/underscore.js"></script>
+    <script src="../../_static/doctools.js"></script>
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-    <script src="../../_static/sphinx-book-theme.12a9622fbb08dcb3a2a40b2c02b83a57.js?v=7c4c3336"></script>
+    <script src="../../_static/sphinx-book-theme.12a9622fbb08dcb3a2a40b2c02b83a57.js"></script>
+    <script async="async" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/latest.js?config=TeX-AMS-MML_HTMLorMML"></script>
     <script type="text/x-mathjax-config">MathJax.Hub.Config({"tex2jax": {"inlineMath": [["\\(", "\\)"]], "displayMath": [["\\[", "\\]"]], "processRefs": false, "processEnvironments": false}})</script>
-    <script>window.MathJax = {"tex": {"inlineMath": [["$", "$"], ["\\(", "\\)"]], "processEscapes": true}, "options": {"ignoreHtmlClass": "tex2jax_ignore|mathjax_ignore|document", "processHtmlClass": "tex2jax_process|mathjax_process|math|output_area"}}</script>
-    <script defer="defer" src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>
     <link rel="index" title="Index" href="../../genindex/" />
     <link rel="search" title="Search" href="../../search/" />
     <link rel="next" title="8. Primal Components" href="../primal/" />
@@ -68,7 +69,7 @@
   <input type="search" class="form-control" name="q" id="search-input" placeholder="Search the docs ..." aria-label="Search the docs ..." autocomplete="off" >
 </form><nav class="bd-links" id="bd-docs-nav" aria-label="Main navigation">
     <div class="bd-toc-item active">
-        <p class="caption" role="heading">
+        <p class="caption">
  <span class="caption-text">
   Tutorials
  </span>
@@ -95,7 +96,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   User Guide
  </span>
@@ -127,7 +128,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   Python API Reference
  </span>
@@ -265,105 +266,105 @@
         
               <div>
                 
-  <section id="Feature-Extractors">
-<h1><span class="section-number">7. </span>Feature Extractors<a class="headerlink" href="#Feature-Extractors" title="Link to this heading">¶</a></h1>
+  <div class="section" id="Feature-Extractors">
+<h1><span class="section-number">7. </span>Feature Extractors<a class="headerlink" href="#Feature-Extractors" title="Permalink to this headline">¶</a></h1>
 <p>In the previous page, we introduced <em>training data collectors</em>, which solve the optimization problem and collect raw training data, such as the optimal solution. In this page, we introduce <strong>feature extractors</strong>, which take the raw training data, stored in HDF5 files, and extract relevant information in order to train a machine learning model.</p>
-<section id="Overview">
-<h2><span class="section-number">7.1. </span>Overview<a class="headerlink" href="#Overview" title="Link to this heading">¶</a></h2>
+<div class="section" id="Overview">
+<h2><span class="section-number">7.1. </span>Overview<a class="headerlink" href="#Overview" title="Permalink to this headline">¶</a></h2>
 <p>Feature extraction is an important step of the process of building a machine learning model because it helps to reduce the complexity of the data and convert it into a format that is more easily processed. Previous research has proposed converting absolute variable coefficients, for example, into relative values which are invariant to various transformations, such as problem scaling, making them more amenable to learning. Various other transformations have also been described.</p>
 <p>In the framework, we treat data collection and feature extraction as two separate steps to accelerate the model development cycle. Specifically, collectors are typically time-consuming, as they often need to solve the problem to optimality, and therefore focus on collecting and storing all data that may or may not be relevant, in its raw format. Feature extractors, on the other hand, focus entirely on filtering the data and improving its representation, and are therefore much faster to run.
 Experimenting with new data representations, therefore, can be done without resolving the instances.</p>
 <p>In MIPLearn, extractors implement the abstract class <a class="reference external" href="../../api/collectors/#miplearn.features.fields.FeaturesExtractor">FeatureExtractor</a>, which has methods that take as input an <a class="reference external" href="../../api/helpers/#miplearn.h5.H5File">H5File</a> and produce either: (i) instance features, which describe the entire instances; (ii) variable features, which describe a particular decision variables; or (iii) constraint features, which describe a particular constraint. The extractor is free to implement only a
 subset of these methods, if it is known that it will not be used with a machine learning component that requires the other types of features.</p>
-</section>
-<section id="H5FieldsExtractor">
-<h2><span class="section-number">7.2. </span>H5FieldsExtractor<a class="headerlink" href="#H5FieldsExtractor" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="H5FieldsExtractor">
+<h2><span class="section-number">7.2. </span>H5FieldsExtractor<a class="headerlink" href="#H5FieldsExtractor" title="Permalink to this headline">¶</a></h2>
 <p><a class="reference internal" href="#H5FieldsExtractor"><span class="std std-ref">H5FieldsExtractor</span></a>, the most simple extractor in MIPLearn, simple extracts data that is already available in the HDF5 file, assembles it into a matrix and returns it as-is. The fields used to build instance, variable and constraint features are user-specified. The class also performs checks to ensure that the shapes of the returned matrices make sense.</p>
-<section id="Example">
-<h3>Example<a class="headerlink" href="#Example" title="Link to this heading">¶</a></h3>
+<div class="section" id="Example">
+<h3>Example<a class="headerlink" href="#Example" title="Permalink to this headline">¶</a></h3>
 <p>The example below demonstrates the usage of H5FieldsExtractor in a randomly generated instance of the multi-dimensional knapsack problem.</p>
 <div class="nbinput docutils container">
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[1]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">glob</span> <span class="kn">import</span> <span class="n">glob</span>
-<span class="kn">from</span> <span class="nn">shutil</span> <span class="kn">import</span> <span class="n">rmtree</span>
-
-<span class="kn">import</span> <span class="nn">numpy</span> <span class="k">as</span> <span class="nn">np</span>
-<span class="kn">from</span> <span class="nn">scipy.stats</span> <span class="kn">import</span> <span class="n">uniform</span><span class="p">,</span> <span class="n">randint</span>
-
-<span class="kn">from</span> <span class="nn">miplearn.collectors.basic</span> <span class="kn">import</span> <span class="n">BasicCollector</span>
-<span class="kn">from</span> <span class="nn">miplearn.extractors.fields</span> <span class="kn">import</span> <span class="n">H5FieldsExtractor</span>
-<span class="kn">from</span> <span class="nn">miplearn.h5</span> <span class="kn">import</span> <span class="n">H5File</span>
-<span class="kn">from</span> <span class="nn">miplearn.io</span> <span class="kn">import</span> <span class="n">write_pkl_gz</span>
-<span class="kn">from</span> <span class="nn">miplearn.problems.multiknapsack</span> <span class="kn">import</span> <span class="p">(</span>
-    <span class="n">MultiKnapsackGenerator</span><span class="p">,</span>
-    <span class="n">build_multiknapsack_model_gurobipy</span><span class="p">,</span>
-<span class="p">)</span>
-
-<span class="c1"># Set random seed to make example reproducible</span>
-<span class="n">np</span><span class="o">.</span><span class="n">random</span><span class="o">.</span><span class="n">seed</span><span class="p">(</span><span class="mi">42</span><span class="p">)</span>
-
-<span class="c1"># Generate some random multiknapsack instances</span>
-<span class="n">rmtree</span><span class="p">(</span><span class="s2">&quot;data/multiknapsack/&quot;</span><span class="p">,</span> <span class="n">ignore_errors</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
-<span class="n">write_pkl_gz</span><span class="p">(</span>
-    <span class="n">MultiKnapsackGenerator</span><span class="p">(</span>
-        <span class="n">n</span><span class="o">=</span><span class="n">randint</span><span class="p">(</span><span class="n">low</span><span class="o">=</span><span class="mi">10</span><span class="p">,</span> <span class="n">high</span><span class="o">=</span><span class="mi">11</span><span class="p">),</span>
-        <span class="n">m</span><span class="o">=</span><span class="n">randint</span><span class="p">(</span><span class="n">low</span><span class="o">=</span><span class="mi">5</span><span class="p">,</span> <span class="n">high</span><span class="o">=</span><span class="mi">6</span><span class="p">),</span>
-        <span class="n">w</span><span class="o">=</span><span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mi">1000</span><span class="p">),</span>
-        <span class="n">K</span><span class="o">=</span><span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mi">100</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mi">0</span><span class="p">),</span>
-        <span class="n">u</span><span class="o">=</span><span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mi">0</span><span class="p">),</span>
-        <span class="n">alpha</span><span class="o">=</span><span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">0.25</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mi">0</span><span class="p">),</span>
-        <span class="n">w_jitter</span><span class="o">=</span><span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">0.95</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">0.1</span><span class="p">),</span>
-        <span class="n">p_jitter</span><span class="o">=</span><span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">0.75</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">0.5</span><span class="p">),</span>
-        <span class="n">fix_w</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span>
-    <span class="p">)</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="mi">10</span><span class="p">),</span>
-    <span class="s2">&quot;data/multiknapsack&quot;</span><span class="p">,</span>
-<span class="p">)</span>
-
-<span class="c1"># Run the basic collector</span>
-<span class="n">BasicCollector</span><span class="p">()</span><span class="o">.</span><span class="n">collect</span><span class="p">(</span>
-    <span class="n">glob</span><span class="p">(</span><span class="s2">&quot;data/multiknapsack/*&quot;</span><span class="p">),</span>
-    <span class="n">build_multiknapsack_model_gurobipy</span><span class="p">,</span>
-    <span class="n">n_jobs</span><span class="o">=</span><span class="mi">4</span><span class="p">,</span>
-<span class="p">)</span>
-
-<span class="n">ext</span> <span class="o">=</span> <span class="n">H5FieldsExtractor</span><span class="p">(</span>
-    <span class="c1"># Use as instance features the value of the LP relaxation and the</span>
-    <span class="c1"># vector of objective coefficients.</span>
-    <span class="n">instance_fields</span><span class="o">=</span><span class="p">[</span>
-        <span class="s2">&quot;lp_obj_value&quot;</span><span class="p">,</span>
-        <span class="s2">&quot;static_var_obj_coeffs&quot;</span><span class="p">,</span>
-    <span class="p">],</span>
-    <span class="c1"># For each variable, use as features the optimal value of the LP</span>
-    <span class="c1"># relaxation, the variable objective coefficient, the variable&#39;s</span>
-    <span class="c1"># value its reduced cost.</span>
-    <span class="n">var_fields</span><span class="o">=</span><span class="p">[</span>
-        <span class="s2">&quot;lp_obj_value&quot;</span><span class="p">,</span>
-        <span class="s2">&quot;static_var_obj_coeffs&quot;</span><span class="p">,</span>
-        <span class="s2">&quot;lp_var_values&quot;</span><span class="p">,</span>
-        <span class="s2">&quot;lp_var_reduced_costs&quot;</span><span class="p">,</span>
-    <span class="p">],</span>
-    <span class="c1"># For each constraint, use as features the RHS, dual value and slack.</span>
-    <span class="n">constr_fields</span><span class="o">=</span><span class="p">[</span>
-        <span class="s2">&quot;static_constr_rhs&quot;</span><span class="p">,</span>
-        <span class="s2">&quot;lp_constr_dual_values&quot;</span><span class="p">,</span>
-        <span class="s2">&quot;lp_constr_slacks&quot;</span><span class="p">,</span>
-    <span class="p">],</span>
-<span class="p">)</span>
-
-<span class="k">with</span> <span class="n">H5File</span><span class="p">(</span><span class="s2">&quot;data/multiknapsack/00000.h5&quot;</span><span class="p">)</span> <span class="k">as</span> <span class="n">h5</span><span class="p">:</span>
-    <span class="c1"># Extract and print instance features</span>
-    <span class="n">x1</span> <span class="o">=</span> <span class="n">ext</span><span class="o">.</span><span class="n">get_instance_features</span><span class="p">(</span><span class="n">h5</span><span class="p">)</span>
-    <span class="nb">print</span><span class="p">(</span><span class="s2">&quot;instance features&quot;</span><span class="p">,</span> <span class="n">x1</span><span class="o">.</span><span class="n">shape</span><span class="p">,</span> <span class="s2">&quot;</span><span class="se">\n</span><span class="s2">&quot;</span><span class="p">,</span> <span class="n">x1</span><span class="p">)</span>
-
-    <span class="c1"># Extract and print variable features</span>
-    <span class="n">x2</span> <span class="o">=</span> <span class="n">ext</span><span class="o">.</span><span class="n">get_var_features</span><span class="p">(</span><span class="n">h5</span><span class="p">)</span>
-    <span class="nb">print</span><span class="p">(</span><span class="s2">&quot;variable features&quot;</span><span class="p">,</span> <span class="n">x2</span><span class="o">.</span><span class="n">shape</span><span class="p">,</span> <span class="s2">&quot;</span><span class="se">\n</span><span class="s2">&quot;</span><span class="p">,</span> <span class="n">x2</span><span class="p">)</span>
-
-    <span class="c1"># Extract and print constraint features</span>
-    <span class="n">x3</span> <span class="o">=</span> <span class="n">ext</span><span class="o">.</span><span class="n">get_constr_features</span><span class="p">(</span><span class="n">h5</span><span class="p">)</span>
-    <span class="nb">print</span><span class="p">(</span><span class="s2">&quot;constraint features&quot;</span><span class="p">,</span> <span class="n">x3</span><span class="o">.</span><span class="n">shape</span><span class="p">,</span> <span class="s2">&quot;</span><span class="se">\n</span><span class="s2">&quot;</span><span class="p">,</span> <span class="n">x3</span><span class="p">)</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>from glob import glob
+from shutil import rmtree
+
+import numpy as np
+from scipy.stats import uniform, randint
+
+from miplearn.collectors.basic import BasicCollector
+from miplearn.extractors.fields import H5FieldsExtractor
+from miplearn.h5 import H5File
+from miplearn.io import write_pkl_gz
+from miplearn.problems.multiknapsack import (
+    MultiKnapsackGenerator,
+    build_multiknapsack_model_gurobipy,
+)
+
+# Set random seed to make example reproducible
+np.random.seed(42)
+
+# Generate some random multiknapsack instances
+rmtree(&quot;data/multiknapsack/&quot;, ignore_errors=True)
+write_pkl_gz(
+    MultiKnapsackGenerator(
+        n=randint(low=10, high=11),
+        m=randint(low=5, high=6),
+        w=uniform(loc=0, scale=1000),
+        K=uniform(loc=100, scale=0),
+        u=uniform(loc=1, scale=0),
+        alpha=uniform(loc=0.25, scale=0),
+        w_jitter=uniform(loc=0.95, scale=0.1),
+        p_jitter=uniform(loc=0.75, scale=0.5),
+        fix_w=True,
+    ).generate(10),
+    &quot;data/multiknapsack&quot;,
+)
+
+# Run the basic collector
+BasicCollector().collect(
+    glob(&quot;data/multiknapsack/*&quot;),
+    build_multiknapsack_model_gurobipy,
+    n_jobs=4,
+)
+
+ext = H5FieldsExtractor(
+    # Use as instance features the value of the LP relaxation and the
+    # vector of objective coefficients.
+    instance_fields=[
+        &quot;lp_obj_value&quot;,
+        &quot;static_var_obj_coeffs&quot;,
+    ],
+    # For each variable, use as features the optimal value of the LP
+    # relaxation, the variable objective coefficient, the variable&#39;s
+    # value its reduced cost.
+    var_fields=[
+        &quot;lp_obj_value&quot;,
+        &quot;static_var_obj_coeffs&quot;,
+        &quot;lp_var_values&quot;,
+        &quot;lp_var_reduced_costs&quot;,
+    ],
+    # For each constraint, use as features the RHS, dual value and slack.
+    constr_fields=[
+        &quot;static_constr_rhs&quot;,
+        &quot;lp_constr_dual_values&quot;,
+        &quot;lp_constr_slacks&quot;,
+    ],
+)
+
+with H5File(&quot;data/multiknapsack/00000.h5&quot;) as h5:
+    # Extract and print instance features
+    x1 = ext.get_instance_features(h5)
+    print(&quot;instance features&quot;, x1.shape, &quot;\n&quot;, x1)
+
+    # Extract and print variable features
+    x2 = ext.get_var_features(h5)
+    print(&quot;variable features&quot;, x2.shape, &quot;\n&quot;, x2)
+
+    # Extract and print constraint features
+    x3 = ext.get_constr_features(h5)
+    print(&quot;constraint features&quot;, x3.shape, &quot;\n&quot;, x3)
 </pre></div>
 </div>
 </div>
@@ -399,29 +400,29 @@ constraint features (5, 3)
 <p class="admonition-title">Warning</p>
 <p>You should ensure that the number of features remains the same for all relevant HDF5 files. In the previous example, to illustrate this issue, we used variable objective coefficients as instance features. While this is allowed, note that this requires all problem instances to have the same number of variables; otherwise the number of features would vary from instance to instance and MIPLearn would be unable to concatenate the matrices.</p>
 </div>
-</section>
-</section>
-<section id="AlvLouWeh2017Extractor">
-<h2><span class="section-number">7.3. </span>AlvLouWeh2017Extractor<a class="headerlink" href="#AlvLouWeh2017Extractor" title="Link to this heading">¶</a></h2>
+</div>
+</div>
+<div class="section" id="AlvLouWeh2017Extractor">
+<h2><span class="section-number">7.3. </span>AlvLouWeh2017Extractor<a class="headerlink" href="#AlvLouWeh2017Extractor" title="Permalink to this headline">¶</a></h2>
 <p>Alvarez, Louveaux and Wehenkel (2017) proposed a set features to describe a particular decision variable in a given node of the branch-and-bound tree, and applied it to the problem of mimicking strong branching decisions. The class <a class="reference internal" href="#AlvLouWeh2017Extractor"><span class="std std-ref">AlvLouWeh2017Extractor</span></a> implements a subset of these features (40 out of 64), which are available outside of the branch-and-bound tree. Some features are derived from the static defintion of the problem (i.e. from objective function and
 constraint data), while some features are derived from the solution to the LP relaxation. The features have been designed to be: (i) independent of the size of the problem; (ii) invariant with respect to irrelevant problem transformations, such as row and column permutation; and (iii) independent of the scale of the problem. We refer to the paper for a more complete description.</p>
-<section id="id1">
-<h3>Example<a class="headerlink" href="#id1" title="Link to this heading">¶</a></h3>
+<div class="section" id="id1">
+<h3>Example<a class="headerlink" href="#id1" title="Permalink to this headline">¶</a></h3>
 <div class="nbinput docutils container">
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[2]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">miplearn.extractors.AlvLouWeh2017</span> <span class="kn">import</span> <span class="n">AlvLouWeh2017Extractor</span>
-<span class="kn">from</span> <span class="nn">miplearn.h5</span> <span class="kn">import</span> <span class="n">H5File</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>from miplearn.extractors.AlvLouWeh2017 import AlvLouWeh2017Extractor
+from miplearn.h5 import H5File
 
-<span class="c1"># Build the extractor</span>
-<span class="n">ext</span> <span class="o">=</span> <span class="n">AlvLouWeh2017Extractor</span><span class="p">()</span>
+# Build the extractor
+ext = AlvLouWeh2017Extractor()
 
-<span class="c1"># Open previously-created multiknapsack training data</span>
-<span class="k">with</span> <span class="n">H5File</span><span class="p">(</span><span class="s2">&quot;data/multiknapsack/00000.h5&quot;</span><span class="p">)</span> <span class="k">as</span> <span class="n">h5</span><span class="p">:</span>
-    <span class="c1"># Extract and print variable features</span>
-    <span class="n">x1</span> <span class="o">=</span> <span class="n">ext</span><span class="o">.</span><span class="n">get_var_features</span><span class="p">(</span><span class="n">h5</span><span class="p">)</span>
-    <span class="nb">print</span><span class="p">(</span><span class="s2">&quot;x1&quot;</span><span class="p">,</span> <span class="n">x1</span><span class="o">.</span><span class="n">shape</span><span class="p">,</span> <span class="s2">&quot;</span><span class="se">\n</span><span class="s2">&quot;</span><span class="p">,</span> <span class="n">x1</span><span class="o">.</span><span class="n">round</span><span class="p">(</span><span class="mi">1</span><span class="p">))</span>
+# Open previously-created multiknapsack training data
+with H5File(&quot;data/multiknapsack/00000.h5&quot;) as h5:
+    # Extract and print variable features
+    x1 = ext.get_var_features(h5)
+    print(&quot;x1&quot;, x1.shape, &quot;\n&quot;, x1.round(1))
 </pre></div>
 </div>
 </div>
@@ -500,9 +501,9 @@ x1 (10, 40)
 <li><p><strong>Alvarez, Alejandro Marcos, Quentin Louveaux, and Louis Wehenkel.</strong> <em>A machine learning-based approximation of strong branching.</em> INFORMS Journal on Computing 29.1 (2017): 185-195.</p></li>
 </ul>
 </div>
-</section>
-</section>
-</section>
+</div>
+</div>
+</div>
 
 
               </div>

0.4/guide/primal/index.html

@@ -1,10 +1,10 @@
+
 <!DOCTYPE html>
 
-<html lang="en" data-content_root="../../">
+<html>
   <head>
     <meta charset="utf-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
-
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>8. Primal Components &#8212; MIPLearn 0.4</title>
     
   <link href="../../_static/css/theme.css" rel="stylesheet" />
@@ -22,21 +22,23 @@
       
 
     
-    <link rel="stylesheet" type="text/css" href="../../_static/pygments.css?v=362ab14a" />
-    <link rel="stylesheet" type="text/css" href="../../_static/sphinx-book-theme.acff12b8f9c144ce68a297486a2fa670.css?v=b0dfe17c" />
-    <link rel="stylesheet" type="text/css" href="../../_static/nbsphinx-code-cells.css?v=2aa19091" />
-    <link rel="stylesheet" type="text/css" href="../../_static/custom.css?v=f8244a84" />
+    <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
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+    <link rel="stylesheet" type="text/css" href="../../_static/custom.css" />
     
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@@ -68,7 +70,7 @@
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 </form><nav class="bd-links" id="bd-docs-nav" aria-label="Main navigation">
     <div class="bd-toc-item active">
-        <p class="caption" role="heading">
+        <p class="caption">
  <span class="caption-text">
   Tutorials
  </span>
@@ -95,7 +97,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   User Guide
  </span>
@@ -127,7 +129,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   Python API Reference
  </span>
@@ -289,13 +291,13 @@
         
               <div>
                 
-  <section id="Primal-Components">
-<h1><span class="section-number">8. </span>Primal Components<a class="headerlink" href="#Primal-Components" title="Link to this heading">¶</a></h1>
+  <div class="section" id="Primal-Components">
+<h1><span class="section-number">8. </span>Primal Components<a class="headerlink" href="#Primal-Components" title="Permalink to this headline">¶</a></h1>
 <p>In MIPLearn, a <strong>primal component</strong> is class that uses machine learning to predict a (potentially partial) assignment of values to the decision variables of the problem. Predicting high-quality primal solutions may be beneficial, as they allow the MIP solver to prune potentially large portions of the search space. Alternatively, if proof of optimality is not required, the MIP solver can be used to complete the partial solution generated by the machine learning model and and double-check its
 feasibility. MIPLearn allows both of these usage patterns.</p>
 <p>In this page, we describe the four primal components currently included in MIPLearn, which employ machine learning in different ways. Each component is highly configurable, and accepts an user-provided machine learning model, which it uses for all predictions. Each component can also be configured to provide the solution to the solver in multiple ways, depending on whether proof of optimality is required.</p>
-<section id="Primal-component-actions">
-<h2><span class="section-number">8.1. </span>Primal component actions<a class="headerlink" href="#Primal-component-actions" title="Link to this heading">¶</a></h2>
+<div class="section" id="Primal-component-actions">
+<h2><span class="section-number">8.1. </span>Primal component actions<a class="headerlink" href="#Primal-component-actions" title="Permalink to this headline">¶</a></h2>
 <p>Before presenting the primal components themselves, we briefly discuss the three ways a solution may be provided to the solver. Each approach has benefits and limitations, which we also discuss in this section. All primal components can be configured to use any of the following approaches.</p>
 <p>The first approach is to provide the solution to the solver as a <strong>warm start</strong>. This is implemented by the class <a class="reference external" href="SetWarmStart">SetWarmStart</a>. The main advantage is that this method maintains all optimality and feasibility guarantees of the MIP solver, while still providing significant performance benefits for various classes of problems. If the machine learning model is able to predict multiple solutions, it is also possible to set multiple warm starts. In this case, the solver evaluates
 each warm start, discards the infeasible ones, then proceeds with the one that has the best objective value. The main disadvantage of this approach, compared to the next two, is that it provides relatively modest speedups for most problem classes, and no speedup at all for many others, even when the machine learning predictions are 100% accurate.</p>
@@ -305,9 +307,9 @@ scratch. The main disadvantage of this approach is that it loses optimality guar
 <div class="math notranslate nohighlight">
 \[\sum_{i : \bar{x}_i=0} x_i + \sum_{i : \bar{x}_i=1} \left(1 - x_i\right) \leq k,\]</div>
 <p>to the problem, where <span class="math notranslate nohighlight">\(k\)</span> is a user-defined parameter, which indicates how many of the predicted variables are allowed to deviate from the machine learning suggestion. The main advantage of this approach, compared to fixing variables, is its tolerance to lower-quality machine learning predictions. Its main disadvantage is that it typically leads to smaller speedups, especially for larger values of <span class="math notranslate nohighlight">\(k\)</span>. This approach also loses optimality guarantees.</p>
-</section>
-<section id="Memorizing-primal-component">
-<h2><span class="section-number">8.2. </span>Memorizing primal component<a class="headerlink" href="#Memorizing-primal-component" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Memorizing-primal-component">
+<h2><span class="section-number">8.2. </span>Memorizing primal component<a class="headerlink" href="#Memorizing-primal-component" title="Permalink to this headline">¶</a></h2>
 <p>A simple machine learning strategy for the prediction of primal solutions is to memorize all distinct solutions seen during training, then try to predict, during inference time, which of those memorized solutions are most likely to be feasible and to provide a good objective value for the current instance. The most promising solutions may alternatively be combined into a single partial solution, which is then provided to the MIP solver. Both variations of this strategy are implemented by the
 <code class="docutils literal notranslate"><span class="pre">MemorizingPrimalComponent</span></code> class. Note that it is only applicable if the problem size, and in fact if the meaning of the decision variables, remains the same across problem instances.</p>
 <p>More precisely, let <span class="math notranslate nohighlight">\(I_1,\ldots,I_n\)</span> be the training instances, and let <span class="math notranslate nohighlight">\(\bar{x}^1,\ldots,\bar{x}^n\)</span> be their respective optimal solutions. Given a new instance <span class="math notranslate nohighlight">\(I_{n+1}\)</span>, <code class="docutils literal notranslate"><span class="pre">MemorizingPrimalComponent</span></code> expects a user-provided binary classifier that assigns (through the <code class="docutils literal notranslate"><span class="pre">predict_proba</span></code> method, following scikit-learn’s conventions) a score <span class="math notranslate nohighlight">\(\delta_i\)</span> to each solution <span class="math notranslate nohighlight">\(\bar{x}^i\)</span>, such that solutions with higher score are more likely to be good solutions for
@@ -331,70 +333,70 @@ Then it computes, for each binary decision variable <span class="math notranslat
 <p>The above specification of <code class="docutils literal notranslate"><span class="pre">MemorizingPrimalComponent</span></code> is meant to be as general as possible. Simpler strategies can be implemented by configuring this component in specific ways. For example, a simpler approach employed in the literature is to collect all optimal solutions, then provide the entire list of solutions to the solver as warm starts, without any filtering or post-processing. This strategy can be implemented with <code class="docutils literal notranslate"><span class="pre">MemorizingPrimalComponent</span></code> by using a model that returns a constant
 value for all solutions (e.g. <a class="reference external" href="https://scikit-learn.org/stable/modules/generated/sklearn.dummy.DummyClassifier.html">scikit-learn’s DummyClassifier</a>), then selecting the top <span class="math notranslate nohighlight">\(n\)</span> (instead of <span class="math notranslate nohighlight">\(k\)</span>) solutions. See example below. Another simple approach is taking the solution to the most similar instance, and using it, by itself, as a warm start. This can be implemented by using a model that computes distances between the current instance and the training ones (e.g. <a class="reference external" href="https://scikit-learn.org/stable/modules/generated/sklearn.neighbors.KNeighborsClassifier.html">scikit-learn’s
 KNeighborsClassifier</a>), then select the solution to the nearest one. See also example below. More complex strategies, of course, can also be configured.</p>
-<section id="Examples">
-<h3>Examples<a class="headerlink" href="#Examples" title="Link to this heading">¶</a></h3>
+<div class="section" id="Examples">
+<h3>Examples<a class="headerlink" href="#Examples" title="Permalink to this headline">¶</a></h3>
 <div class="nbinput nblast docutils container">
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[1]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">sklearn.dummy</span> <span class="kn">import</span> <span class="n">DummyClassifier</span>
-<span class="kn">from</span> <span class="nn">sklearn.neighbors</span> <span class="kn">import</span> <span class="n">KNeighborsClassifier</span>
-
-<span class="kn">from</span> <span class="nn">miplearn.components.primal.actions</span> <span class="kn">import</span> <span class="p">(</span>
-    <span class="n">SetWarmStart</span><span class="p">,</span>
-    <span class="n">FixVariables</span><span class="p">,</span>
-    <span class="n">EnforceProximity</span><span class="p">,</span>
-<span class="p">)</span>
-<span class="kn">from</span> <span class="nn">miplearn.components.primal.mem</span> <span class="kn">import</span> <span class="p">(</span>
-    <span class="n">MemorizingPrimalComponent</span><span class="p">,</span>
-    <span class="n">SelectTopSolutions</span><span class="p">,</span>
-    <span class="n">MergeTopSolutions</span><span class="p">,</span>
-<span class="p">)</span>
-<span class="kn">from</span> <span class="nn">miplearn.extractors.dummy</span> <span class="kn">import</span> <span class="n">DummyExtractor</span>
-<span class="kn">from</span> <span class="nn">miplearn.extractors.fields</span> <span class="kn">import</span> <span class="n">H5FieldsExtractor</span>
-
-<span class="c1"># Configures a memorizing primal component that collects</span>
-<span class="c1"># all distinct solutions seen during training and provides</span>
-<span class="c1"># them to the solver without any filtering or post-processing.</span>
-<span class="n">comp1</span> <span class="o">=</span> <span class="n">MemorizingPrimalComponent</span><span class="p">(</span>
-    <span class="n">clf</span><span class="o">=</span><span class="n">DummyClassifier</span><span class="p">(),</span>
-    <span class="n">extractor</span><span class="o">=</span><span class="n">DummyExtractor</span><span class="p">(),</span>
-    <span class="n">constructor</span><span class="o">=</span><span class="n">SelectTopSolutions</span><span class="p">(</span><span class="mi">1_000_000</span><span class="p">),</span>
-    <span class="n">action</span><span class="o">=</span><span class="n">SetWarmStart</span><span class="p">(),</span>
-<span class="p">)</span>
-
-<span class="c1"># Configures a memorizing primal component that finds the</span>
-<span class="c1"># training instance with the closest objective function, then</span>
-<span class="c1"># fixes the decision variables to the values they assumed</span>
-<span class="c1"># at the optimal solution for that instance.</span>
-<span class="n">comp2</span> <span class="o">=</span> <span class="n">MemorizingPrimalComponent</span><span class="p">(</span>
-    <span class="n">clf</span><span class="o">=</span><span class="n">KNeighborsClassifier</span><span class="p">(</span><span class="n">n_neighbors</span><span class="o">=</span><span class="mi">1</span><span class="p">),</span>
-    <span class="n">extractor</span><span class="o">=</span><span class="n">H5FieldsExtractor</span><span class="p">(</span>
-        <span class="n">instance_fields</span><span class="o">=</span><span class="p">[</span><span class="s2">&quot;static_var_obj_coeffs&quot;</span><span class="p">],</span>
-    <span class="p">),</span>
-    <span class="n">constructor</span><span class="o">=</span><span class="n">SelectTopSolutions</span><span class="p">(</span><span class="mi">1</span><span class="p">),</span>
-    <span class="n">action</span><span class="o">=</span><span class="n">FixVariables</span><span class="p">(),</span>
-<span class="p">)</span>
-
-<span class="c1"># Configures a memorizing primal component that finds the distinct</span>
-<span class="c1"># solutions to the 10 most similar training problem instances,</span>
-<span class="c1"># selects the 3 solutions that were most often optimal to these</span>
-<span class="c1"># training instances, combines them into a single partial solution,</span>
-<span class="c1"># then enforces proximity, allowing at most 3 variables to deviate</span>
-<span class="c1"># from the machine learning suggestion.</span>
-<span class="n">comp3</span> <span class="o">=</span> <span class="n">MemorizingPrimalComponent</span><span class="p">(</span>
-    <span class="n">clf</span><span class="o">=</span><span class="n">KNeighborsClassifier</span><span class="p">(</span><span class="n">n_neighbors</span><span class="o">=</span><span class="mi">10</span><span class="p">),</span>
-    <span class="n">extractor</span><span class="o">=</span><span class="n">H5FieldsExtractor</span><span class="p">(</span><span class="n">instance_fields</span><span class="o">=</span><span class="p">[</span><span class="s2">&quot;static_var_obj_coeffs&quot;</span><span class="p">]),</span>
-    <span class="n">constructor</span><span class="o">=</span><span class="n">MergeTopSolutions</span><span class="p">(</span><span class="n">k</span><span class="o">=</span><span class="mi">3</span><span class="p">,</span> <span class="n">thresholds</span><span class="o">=</span><span class="p">[</span><span class="mf">0.25</span><span class="p">,</span> <span class="mf">0.75</span><span class="p">]),</span>
-    <span class="n">action</span><span class="o">=</span><span class="n">EnforceProximity</span><span class="p">(</span><span class="mi">3</span><span class="p">),</span>
-<span class="p">)</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>from sklearn.dummy import DummyClassifier
+from sklearn.neighbors import KNeighborsClassifier
+
+from miplearn.components.primal.actions import (
+    SetWarmStart,
+    FixVariables,
+    EnforceProximity,
+)
+from miplearn.components.primal.mem import (
+    MemorizingPrimalComponent,
+    SelectTopSolutions,
+    MergeTopSolutions,
+)
+from miplearn.extractors.dummy import DummyExtractor
+from miplearn.extractors.fields import H5FieldsExtractor
+
+# Configures a memorizing primal component that collects
+# all distinct solutions seen during training and provides
+# them to the solver without any filtering or post-processing.
+comp1 = MemorizingPrimalComponent(
+    clf=DummyClassifier(),
+    extractor=DummyExtractor(),
+    constructor=SelectTopSolutions(1_000_000),
+    action=SetWarmStart(),
+)
+
+# Configures a memorizing primal component that finds the
+# training instance with the closest objective function, then
+# fixes the decision variables to the values they assumed
+# at the optimal solution for that instance.
+comp2 = MemorizingPrimalComponent(
+    clf=KNeighborsClassifier(n_neighbors=1),
+    extractor=H5FieldsExtractor(
+        instance_fields=[&quot;static_var_obj_coeffs&quot;],
+    ),
+    constructor=SelectTopSolutions(1),
+    action=FixVariables(),
+)
+
+# Configures a memorizing primal component that finds the distinct
+# solutions to the 10 most similar training problem instances,
+# selects the 3 solutions that were most often optimal to these
+# training instances, combines them into a single partial solution,
+# then enforces proximity, allowing at most 3 variables to deviate
+# from the machine learning suggestion.
+comp3 = MemorizingPrimalComponent(
+    clf=KNeighborsClassifier(n_neighbors=10),
+    extractor=H5FieldsExtractor(instance_fields=[&quot;static_var_obj_coeffs&quot;]),
+    constructor=MergeTopSolutions(k=3, thresholds=[0.25, 0.75]),
+    action=EnforceProximity(3),
+)
 </pre></div>
 </div>
 </div>
-</section>
-</section>
-<section id="Independent-vars-primal-component">
-<h2><span class="section-number">8.3. </span>Independent vars primal component<a class="headerlink" href="#Independent-vars-primal-component" title="Link to this heading">¶</a></h2>
+</div>
+</div>
+<div class="section" id="Independent-vars-primal-component">
+<h2><span class="section-number">8.3. </span>Independent vars primal component<a class="headerlink" href="#Independent-vars-primal-component" title="Permalink to this headline">¶</a></h2>
 <p>Instead of memorizing previously-seen primal solutions, it is also natural to use machine learning models to directly predict the values of the decision variables, constructing a solution from scratch. This approach has the benefit of potentially constructing novel high-quality solutions, never observed in the training data. Two variations of this strategy are supported by MIPLearn: (i) predicting the values of the decision variables independently, using multiple ML models; or (ii) predicting
 the values jointly, with a single model. We describe the first variation in this section, and the second variation in the next section.</p>
 <p>Let <span class="math notranslate nohighlight">\(I_1,\ldots,I_n\)</span> be the training instances, and let <span class="math notranslate nohighlight">\(\bar{x}^1,\ldots,\bar{x}^n\)</span> be their respective optimal solutions. For each binary decision variable <span class="math notranslate nohighlight">\(x_j\)</span>, the component <code class="docutils literal notranslate"><span class="pre">IndependentVarsPrimalComponent</span></code> creates a copy of a user-provided binary classifier and trains it to predict the optimal value of <span class="math notranslate nohighlight">\(x_j\)</span>, given <span class="math notranslate nohighlight">\(\bar{x}^1_j,\ldots,\bar{x}^n_j\)</span> as training labels. The features provided to the model are the variable features computed by an user-provided
@@ -406,106 +408,106 @@ extractor. During inference time, the component uses these <span class="math not
 probability of the value being zero or one (using the <code class="docutils literal notranslate"><span class="pre">predict_proba</span></code> method) and erases from the primal solution all values whose probabilities are below a given threshold.</p></li>
 <li><p>To make multiple copies of the provided ML classifier, MIPLearn uses the standard <code class="docutils literal notranslate"><span class="pre">sklearn.base.clone</span></code> method, which may not be suitable for classifiers from other frameworks. To handle this, it is possible to override the clone function using the <code class="docutils literal notranslate"><span class="pre">clone_fn</span></code> constructor argument.</p></li>
 </ol>
-<section id="id1">
-<h3>Examples<a class="headerlink" href="#id1" title="Link to this heading">¶</a></h3>
+<div class="section" id="id1">
+<h3>Examples<a class="headerlink" href="#id1" title="Permalink to this headline">¶</a></h3>
 <div class="nbinput nblast docutils container">
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[2]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">sklearn.linear_model</span> <span class="kn">import</span> <span class="n">LogisticRegression</span>
-<span class="kn">from</span> <span class="nn">miplearn.classifiers.minprob</span> <span class="kn">import</span> <span class="n">MinProbabilityClassifier</span>
-<span class="kn">from</span> <span class="nn">miplearn.classifiers.singleclass</span> <span class="kn">import</span> <span class="n">SingleClassFix</span>
-<span class="kn">from</span> <span class="nn">miplearn.components.primal.indep</span> <span class="kn">import</span> <span class="n">IndependentVarsPrimalComponent</span>
-<span class="kn">from</span> <span class="nn">miplearn.extractors.AlvLouWeh2017</span> <span class="kn">import</span> <span class="n">AlvLouWeh2017Extractor</span>
-<span class="kn">from</span> <span class="nn">miplearn.components.primal.actions</span> <span class="kn">import</span> <span class="n">SetWarmStart</span>
-
-<span class="c1"># Configures a primal component that independently predicts the value of each</span>
-<span class="c1"># binary variable using logistic regression and provides it to the solver as</span>
-<span class="c1"># warm start. Erases predictions with probability less than 99%; applies</span>
-<span class="c1"># single-class fix; and uses AlvLouWeh2017 features.</span>
-<span class="n">comp</span> <span class="o">=</span> <span class="n">IndependentVarsPrimalComponent</span><span class="p">(</span>
-    <span class="n">base_clf</span><span class="o">=</span><span class="n">SingleClassFix</span><span class="p">(</span>
-        <span class="n">MinProbabilityClassifier</span><span class="p">(</span>
-            <span class="n">base_clf</span><span class="o">=</span><span class="n">LogisticRegression</span><span class="p">(),</span>
-            <span class="n">thresholds</span><span class="o">=</span><span class="p">[</span><span class="mf">0.99</span><span class="p">,</span> <span class="mf">0.99</span><span class="p">],</span>
-        <span class="p">),</span>
-    <span class="p">),</span>
-    <span class="n">extractor</span><span class="o">=</span><span class="n">AlvLouWeh2017Extractor</span><span class="p">(),</span>
-    <span class="n">action</span><span class="o">=</span><span class="n">SetWarmStart</span><span class="p">(),</span>
-<span class="p">)</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>from sklearn.linear_model import LogisticRegression
+from miplearn.classifiers.minprob import MinProbabilityClassifier
+from miplearn.classifiers.singleclass import SingleClassFix
+from miplearn.components.primal.indep import IndependentVarsPrimalComponent
+from miplearn.extractors.AlvLouWeh2017 import AlvLouWeh2017Extractor
+from miplearn.components.primal.actions import SetWarmStart
+
+# Configures a primal component that independently predicts the value of each
+# binary variable using logistic regression and provides it to the solver as
+# warm start. Erases predictions with probability less than 99%; applies
+# single-class fix; and uses AlvLouWeh2017 features.
+comp = IndependentVarsPrimalComponent(
+    base_clf=SingleClassFix(
+        MinProbabilityClassifier(
+            base_clf=LogisticRegression(),
+            thresholds=[0.99, 0.99],
+        ),
+    ),
+    extractor=AlvLouWeh2017Extractor(),
+    action=SetWarmStart(),
+)
 </pre></div>
 </div>
 </div>
-</section>
-</section>
-<section id="Joint-vars-primal-component">
-<h2><span class="section-number">8.4. </span>Joint vars primal component<a class="headerlink" href="#Joint-vars-primal-component" title="Link to this heading">¶</a></h2>
+</div>
+</div>
+<div class="section" id="Joint-vars-primal-component">
+<h2><span class="section-number">8.4. </span>Joint vars primal component<a class="headerlink" href="#Joint-vars-primal-component" title="Permalink to this headline">¶</a></h2>
 <p>In the previous subsection, we used multiple machine learning models to independently predict the values of the binary decision variables. When these values are correlated, an alternative approach is to jointly predict the values of all binary variables using a single machine learning model. This strategy is implemented by <code class="docutils literal notranslate"><span class="pre">JointVarsPrimalComponent</span></code>. Compared to the previous ones, this component is much more straightforwad. It simply extracts instance features, using the user-provided feature
 extractor, then directly trains the user-provided binary classifier (using the <code class="docutils literal notranslate"><span class="pre">fit</span></code> method), without making any copies. The trained classifier is then used to predict entire solutions (using the <code class="docutils literal notranslate"><span class="pre">predict</span></code> method), which are given to the solver using one of the previously discussed methods. In the example below, we illustrate the usage of this component with a simple feed-forward neural network.</p>
 <p><code class="docutils literal notranslate"><span class="pre">JointVarsPrimalComponent</span></code> can also be used to implement strategies that use multiple machine learning models, but not indepedently. For example, a common strategy in multioutput prediction is building a <em>classifier chain</em>. In this approach, the first decision variable is predicted using the instance features alone; but the <span class="math notranslate nohighlight">\(n\)</span>-th decision variable is predicted using the instance features plus the predicted values of the <span class="math notranslate nohighlight">\(n-1\)</span> previous variables. This can be easily implemented
 using scikit-learn’s <code class="docutils literal notranslate"><span class="pre">ClassifierChain</span></code> estimator, as shown in the example below.</p>
-<section id="id2">
-<h3>Examples<a class="headerlink" href="#id2" title="Link to this heading">¶</a></h3>
+<div class="section" id="id2">
+<h3>Examples<a class="headerlink" href="#id2" title="Permalink to this headline">¶</a></h3>
 <div class="nbinput nblast docutils container">
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[3]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">sklearn.multioutput</span> <span class="kn">import</span> <span class="n">ClassifierChain</span>
-<span class="kn">from</span> <span class="nn">sklearn.neural_network</span> <span class="kn">import</span> <span class="n">MLPClassifier</span>
-<span class="kn">from</span> <span class="nn">miplearn.components.primal.joint</span> <span class="kn">import</span> <span class="n">JointVarsPrimalComponent</span>
-<span class="kn">from</span> <span class="nn">miplearn.extractors.fields</span> <span class="kn">import</span> <span class="n">H5FieldsExtractor</span>
-<span class="kn">from</span> <span class="nn">miplearn.components.primal.actions</span> <span class="kn">import</span> <span class="n">SetWarmStart</span>
-
-<span class="c1"># Configures a primal component that uses a feedforward neural network</span>
-<span class="c1"># to jointly predict the values of the binary variables, based on the</span>
-<span class="c1"># objective cost function, and provides the solution to the solver as</span>
-<span class="c1"># a warm start.</span>
-<span class="n">comp</span> <span class="o">=</span> <span class="n">JointVarsPrimalComponent</span><span class="p">(</span>
-    <span class="n">clf</span><span class="o">=</span><span class="n">MLPClassifier</span><span class="p">(),</span>
-    <span class="n">extractor</span><span class="o">=</span><span class="n">H5FieldsExtractor</span><span class="p">(</span>
-        <span class="n">instance_fields</span><span class="o">=</span><span class="p">[</span><span class="s2">&quot;static_var_obj_coeffs&quot;</span><span class="p">],</span>
-    <span class="p">),</span>
-    <span class="n">action</span><span class="o">=</span><span class="n">SetWarmStart</span><span class="p">(),</span>
-<span class="p">)</span>
-
-<span class="c1"># Configures a primal component that uses a chain of logistic regression</span>
-<span class="c1"># models to jointly predict the values of the binary variables, based on</span>
-<span class="c1"># the objective function.</span>
-<span class="n">comp</span> <span class="o">=</span> <span class="n">JointVarsPrimalComponent</span><span class="p">(</span>
-    <span class="n">clf</span><span class="o">=</span><span class="n">ClassifierChain</span><span class="p">(</span><span class="n">SingleClassFix</span><span class="p">(</span><span class="n">LogisticRegression</span><span class="p">())),</span>
-    <span class="n">extractor</span><span class="o">=</span><span class="n">H5FieldsExtractor</span><span class="p">(</span>
-        <span class="n">instance_fields</span><span class="o">=</span><span class="p">[</span><span class="s2">&quot;static_var_obj_coeffs&quot;</span><span class="p">],</span>
-    <span class="p">),</span>
-    <span class="n">action</span><span class="o">=</span><span class="n">SetWarmStart</span><span class="p">(),</span>
-<span class="p">)</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>from sklearn.multioutput import ClassifierChain
+from sklearn.neural_network import MLPClassifier
+from miplearn.components.primal.joint import JointVarsPrimalComponent
+from miplearn.extractors.fields import H5FieldsExtractor
+from miplearn.components.primal.actions import SetWarmStart
+
+# Configures a primal component that uses a feedforward neural network
+# to jointly predict the values of the binary variables, based on the
+# objective cost function, and provides the solution to the solver as
+# a warm start.
+comp = JointVarsPrimalComponent(
+    clf=MLPClassifier(),
+    extractor=H5FieldsExtractor(
+        instance_fields=[&quot;static_var_obj_coeffs&quot;],
+    ),
+    action=SetWarmStart(),
+)
+
+# Configures a primal component that uses a chain of logistic regression
+# models to jointly predict the values of the binary variables, based on
+# the objective function.
+comp = JointVarsPrimalComponent(
+    clf=ClassifierChain(SingleClassFix(LogisticRegression())),
+    extractor=H5FieldsExtractor(
+        instance_fields=[&quot;static_var_obj_coeffs&quot;],
+    ),
+    action=SetWarmStart(),
+)
 </pre></div>
 </div>
 </div>
-</section>
-</section>
-<section id="Expert-primal-component">
-<h2><span class="section-number">8.5. </span>Expert primal component<a class="headerlink" href="#Expert-primal-component" title="Link to this heading">¶</a></h2>
+</div>
+</div>
+<div class="section" id="Expert-primal-component">
+<h2><span class="section-number">8.5. </span>Expert primal component<a class="headerlink" href="#Expert-primal-component" title="Permalink to this headline">¶</a></h2>
 <p>Before spending time and effort choosing a machine learning strategy and tweaking its parameters, it is usually a good idea to evaluate what would be the performance impact of the model if its predictions were 100% accurate. This is especially important for the prediction of warm starts, since they are not always very beneficial. To simplify this task, MIPLearn provides <code class="docutils literal notranslate"><span class="pre">ExpertPrimalComponent</span></code>, a component which simply loads the optimal solution from the HDF5 file, assuming that it has already
 been computed, then directly provides it to the solver using one of the available methods. This component is useful in benchmarks, to evaluate how close to the best theoretical performance the machine learning components are.</p>
-<section id="Example">
-<h3>Example<a class="headerlink" href="#Example" title="Link to this heading">¶</a></h3>
+<div class="section" id="Example">
+<h3>Example<a class="headerlink" href="#Example" title="Permalink to this headline">¶</a></h3>
 <div class="nbinput nblast docutils container">
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[4]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">miplearn.components.primal.expert</span> <span class="kn">import</span> <span class="n">ExpertPrimalComponent</span>
-<span class="kn">from</span> <span class="nn">miplearn.components.primal.actions</span> <span class="kn">import</span> <span class="n">SetWarmStart</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>from miplearn.components.primal.expert import ExpertPrimalComponent
+from miplearn.components.primal.actions import SetWarmStart
 
-<span class="c1"># Configures an expert primal component, which reads a pre-computed</span>
-<span class="c1"># optimal solution from the HDF5 file and provides it to the solver</span>
-<span class="c1"># as warm start.</span>
-<span class="n">comp</span> <span class="o">=</span> <span class="n">ExpertPrimalComponent</span><span class="p">(</span><span class="n">action</span><span class="o">=</span><span class="n">SetWarmStart</span><span class="p">())</span>
+# Configures an expert primal component, which reads a pre-computed
+# optimal solution from the HDF5 file and provides it to the solver
+# as warm start.
+comp = ExpertPrimalComponent(action=SetWarmStart())
 </pre></div>
 </div>
 </div>
-</section>
-</section>
-</section>
+</div>
+</div>
+</div>
 
 
               </div>

0.4/guide/solvers/index.html

@@ -1,10 +1,10 @@
+
 <!DOCTYPE html>
 
-<html lang="en" data-content_root="../../">
+<html>
   <head>
     <meta charset="utf-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
-
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>9. Learning Solver &#8212; MIPLearn 0.4</title>
     
   <link href="../../_static/css/theme.css" rel="stylesheet" />
@@ -22,21 +22,25 @@
       
 
     
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   <link rel="preload" as="script" href="../../_static/js/index.1c5a1a01449ed65a7b51.js">
 
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-    <script src="../../_static/sphinx_highlight.js?v=dc90522c"></script>
+    <script id="documentation_options" data-url_root="../../" src="../../_static/documentation_options.js"></script>
+    <script src="../../_static/jquery.js"></script>
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+    <script src="../../_static/doctools.js"></script>
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     <link rel="index" title="Index" href="../../genindex/" />
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     <link rel="next" title="10. Benchmark Problems" href="../../api/problems/" />
@@ -68,7 +72,7 @@
   <input type="search" class="form-control" name="q" id="search-input" placeholder="Search the docs ..." aria-label="Search the docs ..." autocomplete="off" >
 </form><nav class="bd-links" id="bd-docs-nav" aria-label="Main navigation">
     <div class="bd-toc-item active">
-        <p class="caption" role="heading">
+        <p class="caption">
  <span class="caption-text">
   Tutorials
  </span>
@@ -95,7 +99,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   User Guide
  </span>
@@ -127,7 +131,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   Python API Reference
  </span>
@@ -251,12 +255,12 @@
         
               <div>
                 
-  <section id="Learning-Solver">
-<h1><span class="section-number">9. </span>Learning Solver<a class="headerlink" href="#Learning-Solver" title="Link to this heading">¶</a></h1>
+  <div class="section" id="Learning-Solver">
+<h1><span class="section-number">9. </span>Learning Solver<a class="headerlink" href="#Learning-Solver" title="Permalink to this headline">¶</a></h1>
 <p>On previous pages, we discussed various components of the MIPLearn framework, including training data collectors, feature extractors, and individual machine learning components. In this page, we introduce <strong>LearningSolver</strong>, the main class of the framework which integrates all the aforementioned components into a cohesive whole. Using <strong>LearningSolver</strong> involves three steps: (i) configuring the solver; (ii) training the ML components; and (iii) solving new MIP instances. In the following, we
 describe each of these steps, then conclude with a complete runnable example.</p>
-<section id="Configuring-the-solver">
-<h2><span class="section-number">9.1. </span>Configuring the solver<a class="headerlink" href="#Configuring-the-solver" title="Link to this heading">¶</a></h2>
+<div class="section" id="Configuring-the-solver">
+<h2><span class="section-number">9.1. </span>Configuring the solver<a class="headerlink" href="#Configuring-the-solver" title="Permalink to this headline">¶</a></h2>
 <p><strong>LearningSolver</strong> is composed by multiple individual machine learning components, each targeting a different part of the solution process, or implementing a different machine learning strategy. This architecture allows strategies to be easily enabled, disabled or customized, making the framework flexible. By default, no components are provided and <strong>LearningSolver</strong> is equivalent to a traditional MIP solver. To specify additional components, the <code class="docutils literal notranslate"><span class="pre">components</span></code> constructor argument may be used:</p>
 <div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="n">solver</span> <span class="o">=</span> <span class="n">LearningSolver</span><span class="p">(</span>
     <span class="n">components</span><span class="o">=</span><span class="p">[</span>
@@ -268,9 +272,9 @@ describe each of these steps, then conclude with a complete runnable example.</p
 </pre></div>
 </div>
 <p>In this example, three components <code class="docutils literal notranslate"><span class="pre">comp1</span></code>, <code class="docutils literal notranslate"><span class="pre">comp2</span></code> and <code class="docutils literal notranslate"><span class="pre">comp3</span></code> are provided. The strategies implemented by these components are applied sequentially when solving the problem. For example, <code class="docutils literal notranslate"><span class="pre">comp1</span></code> and <code class="docutils literal notranslate"><span class="pre">comp2</span></code> could fix a subset of decision variables, while <code class="docutils literal notranslate"><span class="pre">comp3</span></code> constructs a warm start for the remaining problem.</p>
-</section>
-<section id="Training-and-solving-new-instances">
-<h2><span class="section-number">9.2. </span>Training and solving new instances<a class="headerlink" href="#Training-and-solving-new-instances" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Training-and-solving-new-instances">
+<h2><span class="section-number">9.2. </span>Training and solving new instances<a class="headerlink" href="#Training-and-solving-new-instances" title="Permalink to this headline">¶</a></h2>
 <p>Once a solver is configured, its ML components need to be trained. This can be achieved by the <code class="docutils literal notranslate"><span class="pre">solver.fit</span></code> method, as illustrated below. The method accepts a list of HDF5 files and trains each individual component sequentially. Once the solver is trained, new instances can be solved using <code class="docutils literal notranslate"><span class="pre">solver.optimize</span></code>. The method returns a dictionary of statistics collected by each component, such as the number of variables fixed.</p>
 <div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="c1"># Build instances</span>
 <span class="n">train_data</span> <span class="o">=</span> <span class="o">...</span>
@@ -290,79 +294,79 @@ describe each of these steps, then conclude with a complete runnable example.</p
 <span class="n">stats</span> <span class="o">=</span> <span class="n">solver</span><span class="o">.</span><span class="n">optimize</span><span class="p">(</span><span class="n">test_data</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">build_model</span><span class="p">)</span>
 </pre></div>
 </div>
-</section>
-<section id="Complete-example">
-<h2><span class="section-number">9.3. </span>Complete example<a class="headerlink" href="#Complete-example" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Complete-example">
+<h2><span class="section-number">9.3. </span>Complete example<a class="headerlink" href="#Complete-example" title="Permalink to this headline">¶</a></h2>
 <p>In the example below, we illustrate the usage of <strong>LearningSolver</strong> by building instances of the Traveling Salesman Problem, collecting training data, training the ML components, then solving a new instance.</p>
 <div class="nbinput docutils container">
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[1]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">random</span>
-
-<span class="kn">import</span> <span class="nn">numpy</span> <span class="k">as</span> <span class="nn">np</span>
-<span class="kn">from</span> <span class="nn">scipy.stats</span> <span class="kn">import</span> <span class="n">uniform</span><span class="p">,</span> <span class="n">randint</span>
-<span class="kn">from</span> <span class="nn">sklearn.linear_model</span> <span class="kn">import</span> <span class="n">LogisticRegression</span>
-
-<span class="kn">from</span> <span class="nn">miplearn.classifiers.minprob</span> <span class="kn">import</span> <span class="n">MinProbabilityClassifier</span>
-<span class="kn">from</span> <span class="nn">miplearn.classifiers.singleclass</span> <span class="kn">import</span> <span class="n">SingleClassFix</span>
-<span class="kn">from</span> <span class="nn">miplearn.collectors.basic</span> <span class="kn">import</span> <span class="n">BasicCollector</span>
-<span class="kn">from</span> <span class="nn">miplearn.components.primal.actions</span> <span class="kn">import</span> <span class="n">SetWarmStart</span>
-<span class="kn">from</span> <span class="nn">miplearn.components.primal.indep</span> <span class="kn">import</span> <span class="n">IndependentVarsPrimalComponent</span>
-<span class="kn">from</span> <span class="nn">miplearn.extractors.AlvLouWeh2017</span> <span class="kn">import</span> <span class="n">AlvLouWeh2017Extractor</span>
-<span class="kn">from</span> <span class="nn">miplearn.io</span> <span class="kn">import</span> <span class="n">write_pkl_gz</span>
-<span class="kn">from</span> <span class="nn">miplearn.problems.tsp</span> <span class="kn">import</span> <span class="p">(</span>
-    <span class="n">TravelingSalesmanGenerator</span><span class="p">,</span>
-    <span class="n">build_tsp_model_gurobipy</span><span class="p">,</span>
-<span class="p">)</span>
-<span class="kn">from</span> <span class="nn">miplearn.solvers.learning</span> <span class="kn">import</span> <span class="n">LearningSolver</span>
-
-<span class="c1"># Set random seed to make example reproducible.</span>
-<span class="n">random</span><span class="o">.</span><span class="n">seed</span><span class="p">(</span><span class="mi">42</span><span class="p">)</span>
-<span class="n">np</span><span class="o">.</span><span class="n">random</span><span class="o">.</span><span class="n">seed</span><span class="p">(</span><span class="mi">42</span><span class="p">)</span>
-
-<span class="c1"># Generate a few instances of the traveling salesman problem.</span>
-<span class="n">data</span> <span class="o">=</span> <span class="n">TravelingSalesmanGenerator</span><span class="p">(</span>
-    <span class="n">n</span><span class="o">=</span><span class="n">randint</span><span class="p">(</span><span class="n">low</span><span class="o">=</span><span class="mi">10</span><span class="p">,</span> <span class="n">high</span><span class="o">=</span><span class="mi">11</span><span class="p">),</span>
-    <span class="n">x</span><span class="o">=</span><span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">1000.0</span><span class="p">),</span>
-    <span class="n">y</span><span class="o">=</span><span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">1000.0</span><span class="p">),</span>
-    <span class="n">gamma</span><span class="o">=</span><span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">0.90</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">0.20</span><span class="p">),</span>
-    <span class="n">fix_cities</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span>
-    <span class="nb">round</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span>
-<span class="p">)</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="mi">50</span><span class="p">)</span>
-
-<span class="c1"># Save instance data to data/tsp/00000.pkl.gz, data/tsp/00001.pkl.gz, ...</span>
-<span class="n">all_data</span> <span class="o">=</span> <span class="n">write_pkl_gz</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="s2">&quot;data/tsp&quot;</span><span class="p">)</span>
-
-<span class="c1"># Split train/test data</span>
-<span class="n">train_data</span> <span class="o">=</span> <span class="n">all_data</span><span class="p">[:</span><span class="mi">40</span><span class="p">]</span>
-<span class="n">test_data</span> <span class="o">=</span> <span class="n">all_data</span><span class="p">[</span><span class="mi">40</span><span class="p">:]</span>
-
-<span class="c1"># Collect training data</span>
-<span class="n">bc</span> <span class="o">=</span> <span class="n">BasicCollector</span><span class="p">()</span>
-<span class="n">bc</span><span class="o">.</span><span class="n">collect</span><span class="p">(</span><span class="n">train_data</span><span class="p">,</span> <span class="n">build_tsp_model_gurobipy</span><span class="p">,</span> <span class="n">n_jobs</span><span class="o">=</span><span class="mi">4</span><span class="p">)</span>
-
-<span class="c1"># Build learning solver</span>
-<span class="n">solver</span> <span class="o">=</span> <span class="n">LearningSolver</span><span class="p">(</span>
-    <span class="n">components</span><span class="o">=</span><span class="p">[</span>
-        <span class="n">IndependentVarsPrimalComponent</span><span class="p">(</span>
-            <span class="n">base_clf</span><span class="o">=</span><span class="n">SingleClassFix</span><span class="p">(</span>
-                <span class="n">MinProbabilityClassifier</span><span class="p">(</span>
-                    <span class="n">base_clf</span><span class="o">=</span><span class="n">LogisticRegression</span><span class="p">(),</span>
-                    <span class="n">thresholds</span><span class="o">=</span><span class="p">[</span><span class="mf">0.95</span><span class="p">,</span> <span class="mf">0.95</span><span class="p">],</span>
-                <span class="p">),</span>
-            <span class="p">),</span>
-            <span class="n">extractor</span><span class="o">=</span><span class="n">AlvLouWeh2017Extractor</span><span class="p">(),</span>
-            <span class="n">action</span><span class="o">=</span><span class="n">SetWarmStart</span><span class="p">(),</span>
-        <span class="p">)</span>
-    <span class="p">]</span>
-<span class="p">)</span>
-
-<span class="c1"># Train ML models</span>
-<span class="n">solver</span><span class="o">.</span><span class="n">fit</span><span class="p">(</span><span class="n">train_data</span><span class="p">)</span>
-
-<span class="c1"># Solve a test instance</span>
-<span class="n">solver</span><span class="o">.</span><span class="n">optimize</span><span class="p">(</span><span class="n">test_data</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">build_tsp_model_gurobipy</span><span class="p">)</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>import random
+
+import numpy as np
+from scipy.stats import uniform, randint
+from sklearn.linear_model import LogisticRegression
+
+from miplearn.classifiers.minprob import MinProbabilityClassifier
+from miplearn.classifiers.singleclass import SingleClassFix
+from miplearn.collectors.basic import BasicCollector
+from miplearn.components.primal.actions import SetWarmStart
+from miplearn.components.primal.indep import IndependentVarsPrimalComponent
+from miplearn.extractors.AlvLouWeh2017 import AlvLouWeh2017Extractor
+from miplearn.io import write_pkl_gz
+from miplearn.problems.tsp import (
+    TravelingSalesmanGenerator,
+    build_tsp_model_gurobipy,
+)
+from miplearn.solvers.learning import LearningSolver
+
+# Set random seed to make example reproducible.
+random.seed(42)
+np.random.seed(42)
+
+# Generate a few instances of the traveling salesman problem.
+data = TravelingSalesmanGenerator(
+    n=randint(low=10, high=11),
+    x=uniform(loc=0.0, scale=1000.0),
+    y=uniform(loc=0.0, scale=1000.0),
+    gamma=uniform(loc=0.90, scale=0.20),
+    fix_cities=True,
+    round=True,
+).generate(50)
+
+# Save instance data to data/tsp/00000.pkl.gz, data/tsp/00001.pkl.gz, ...
+all_data = write_pkl_gz(data, &quot;data/tsp&quot;)
+
+# Split train/test data
+train_data = all_data[:40]
+test_data = all_data[40:]
+
+# Collect training data
+bc = BasicCollector()
+bc.collect(train_data, build_tsp_model_gurobipy, n_jobs=4)
+
+# Build learning solver
+solver = LearningSolver(
+    components=[
+        IndependentVarsPrimalComponent(
+            base_clf=SingleClassFix(
+                MinProbabilityClassifier(
+                    base_clf=LogisticRegression(),
+                    thresholds=[0.95, 0.95],
+                ),
+            ),
+            extractor=AlvLouWeh2017Extractor(),
+            action=SetWarmStart(),
+        )
+    ]
+)
+
+# Train ML models
+solver.fit(train_data)
+
+# Solve a test instance
+solver.optimize(test_data[0], build_tsp_model_gurobipy)
 </pre></div>
 </div>
 </div>
@@ -457,8 +461,8 @@ User-callback calls 110, time in user-callback 0.00 sec
 </pre></div>
 </div>
 </div>
-</section>
-</section>
+</div>
+</div>
 
 
               </div>

0.4/index.html

@@ -1,10 +1,10 @@
+
 <!DOCTYPE html>
 
-<html lang="en" data-content_root="./">
+<html>
   <head>
     <meta charset="utf-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
-
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>MIPLearn &#8212; MIPLearn 0.4</title>
     
   <link href="_static/css/theme.css" rel="stylesheet" />
@@ -22,17 +22,23 @@
       
 
     
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     <link rel="search" title="Search" href="search/" />
     <link rel="next" title="1. Getting started (Pyomo)" href="tutorials/getting-started-pyomo/" />
@@ -63,7 +69,7 @@
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 </form><nav class="bd-links" id="bd-docs-nav" aria-label="Main navigation">
     <div class="bd-toc-item active">
-        <p class="caption" role="heading">
+        <p class="caption">
  <span class="caption-text">
   Tutorials
  </span>
@@ -90,7 +96,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   User Guide
  </span>
@@ -122,7 +128,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   Python API Reference
  </span>
@@ -253,14 +259,14 @@
         
               <div>
                 
-  <section id="miplearn">
-<h1>MIPLearn<a class="headerlink" href="#miplearn" title="Link to this heading">¶</a></h1>
+  <div class="section" id="miplearn">
+<h1>MIPLearn<a class="headerlink" href="#miplearn" title="Permalink to this headline">¶</a></h1>
 <p><strong>MIPLearn</strong> is an extensible framework for solving discrete optimization problems using a combination of Mixed-Integer Linear Programming (MIP) and Machine Learning (ML). MIPLearn uses ML methods to automatically identify patterns in previously solved instances of the problem, then uses these patterns to accelerate the performance of conventional state-of-the-art MIP solvers such as CPLEX, Gurobi or XPRESS.</p>
 <p>Unlike pure ML methods, MIPLearn is not only able to find high-quality solutions to discrete optimization problems, but it can also prove the optimality and feasibility of these solutions. Unlike conventional MIP solvers, MIPLearn can take full advantage of very specific observations that happen to be true in a particular family of instances (such as the observation that a particular constraint is typically redundant, or that a particular variable typically assumes a certain value). For certain classes of problems, this approach may provide significant performance benefits.</p>
-<section id="contents">
-<h2>Contents<a class="headerlink" href="#contents" title="Link to this heading">¶</a></h2>
+<div class="section" id="contents">
+<h2>Contents<a class="headerlink" href="#contents" title="Permalink to this headline">¶</a></h2>
 <div class="toctree-wrapper compound">
-<p class="caption" role="heading"><span class="caption-text">Tutorials</span></p>
+<p class="caption"><span class="caption-text">Tutorials</span></p>
 <ul>
 <li class="toctree-l1"><a class="reference internal" href="tutorials/getting-started-pyomo/">1. Getting started (Pyomo)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="tutorials/getting-started-gurobipy/">2. Getting started (Gurobipy)</a></li>
@@ -269,7 +275,7 @@
 </ul>
 </div>
 <div class="toctree-wrapper compound">
-<p class="caption" role="heading"><span class="caption-text">User Guide</span></p>
+<p class="caption"><span class="caption-text">User Guide</span></p>
 <ul>
 <li class="toctree-l1"><a class="reference internal" href="guide/problems/">5. Benchmark Problems</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="guide/problems/#Overview">5.1. Overview</a></li>
@@ -313,7 +319,7 @@
 </ul>
 </div>
 <div class="toctree-wrapper compound">
-<p class="caption" role="heading"><span class="caption-text">Python API Reference</span></p>
+<p class="caption"><span class="caption-text">Python API Reference</span></p>
 <ul>
 <li class="toctree-l1"><a class="reference internal" href="api/problems/">10. Benchmark Problems</a></li>
 <li class="toctree-l1"><a class="reference internal" href="api/collectors/">11. Collectors &amp; Extractors</a></li>
@@ -322,9 +328,9 @@
 <li class="toctree-l1"><a class="reference internal" href="api/helpers/">14. Helpers</a></li>
 </ul>
 </div>
-</section>
-<section id="authors">
-<h2>Authors<a class="headerlink" href="#authors" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="authors">
+<h2>Authors<a class="headerlink" href="#authors" title="Permalink to this headline">¶</a></h2>
 <ul class="simple">
 <li><p><strong>Alinson S. Xavier</strong> (Argonne National Laboratory)</p></li>
 <li><p><strong>Feng Qiu</strong> (Argonne National Laboratory)</p></li>
@@ -332,16 +338,16 @@
 <li><p><strong>Berkay Becu</strong> (Georgia Institute of Technology)</p></li>
 <li><p><strong>Santanu S. Dey</strong>  (Georgia Institute of Technology)</p></li>
 </ul>
-</section>
-<section id="acknowledgments">
-<h2>Acknowledgments<a class="headerlink" href="#acknowledgments" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="acknowledgments">
+<h2>Acknowledgments<a class="headerlink" href="#acknowledgments" title="Permalink to this headline">¶</a></h2>
 <ul class="simple">
 <li><p>Based upon work supported by <strong>Laboratory Directed Research and Development</strong> (LDRD) funding from Argonne National Laboratory, provided by the Director, Office of Science, of the U.S. Department of Energy.</p></li>
 <li><p>Based upon work supported by the <strong>U.S. Department of Energy Advanced Grid Modeling Program</strong>.</p></li>
 </ul>
-</section>
-<section id="citing-miplearn">
-<h2>Citing MIPLearn<a class="headerlink" href="#citing-miplearn" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="citing-miplearn">
+<h2>Citing MIPLearn<a class="headerlink" href="#citing-miplearn" title="Permalink to this headline">¶</a></h2>
 <p>If you use MIPLearn in your research (either the solver or the included problem generators), we kindly request that you cite the package as follows:</p>
 <ul class="simple">
 <li><p><strong>Alinson S. Xavier, Feng Qiu, Xiaoyi Gu, Berkay Becu, Santanu S. Dey.</strong> <em>MIPLearn: An Extensible Framework for Learning-Enhanced Optimization (Version 0.4)</em>. Zenodo (2024). DOI: <a class="reference external" href="https://doi.org/10.5281/zenodo.4287567">https://doi.org/10.5281/zenodo.4287567</a></p></li>
@@ -350,8 +356,8 @@
 <ul class="simple">
 <li><p><strong>Alinson S. Xavier, Feng Qiu, Shabbir Ahmed.</strong> <em>Learning to Solve Large-Scale Unit Commitment Problems.</em> INFORMS Journal on Computing (2020). DOI: <a class="reference external" href="https://doi.org/10.1287/ijoc.2020.0976">https://doi.org/10.1287/ijoc.2020.0976</a></p></li>
 </ul>
-</section>
-</section>
+</div>
+</div>
 
 
               </div>

0.4/py-modindex/index.html

@@ -1,6 +1,7 @@
+
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+<html>
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+        <p class="caption">
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@@ -91,7 +102,7 @@
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  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
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@@ -123,7 +134,7 @@
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 </ul>
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+<p class="caption">
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@@ -1,6 +1,7 @@
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+        <p class="caption">
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 </ul>
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+<p class="caption">
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@@ -126,7 +137,7 @@
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+<p class="caption">
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@@ -1,10 +1,10 @@
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@@ -256,8 +261,8 @@
         
               <div>
                 
-  <section id="User-cuts-and-lazy-constraints">
-<h1><span class="section-number">4. </span>User cuts and lazy constraints<a class="headerlink" href="#User-cuts-and-lazy-constraints" title="Link to this heading">¶</a></h1>
+  <div class="section" id="User-cuts-and-lazy-constraints">
+<h1><span class="section-number">4. </span>User cuts and lazy constraints<a class="headerlink" href="#User-cuts-and-lazy-constraints" title="Permalink to this headline">¶</a></h1>
 <p>User cuts and lazy constraints are two advanced mixed-integer programming techniques that can accelerate solver performance. User cuts are additional constraints, derived from the constraints already in the model, that can tighten the feasible region and eliminate fractional solutions, thus reducing the size of the branch-and-bound tree. Lazy constraints, on the other hand, are constraints that are potentially part of the problem formulation but are omitted from the initial model to reduce its
 size; these constraints are added to the formulation only once the solver finds a solution that violates them. While both techniques have been successful, significant computational effort may still be required to generate strong user cuts and to identify violated lazy constraints, which can reduce their effectiveness.</p>
 <p>MIPLearn is able to predict which user cuts and which lazy constraints to enforce at the beginning of the optimization process, using machine learning. In this tutorial, we will use the framework to predict subtour elimination constraints for the <strong>traveling salesman problem</strong> using Gurobipy. We assume that MIPLearn has already been correctly installed.</p>
@@ -269,8 +274,8 @@ size; these constraints are added to the formulation only once the solver finds
 <li><p>Julia/JuMP: Only solvers supporting solver-independent callbacks are supported. As of JuMP 1.19, this includes Gurobi, CPLEX, XPRESS, SCIP and GLPK. Note that HiGHS and Cbc are not supported. As newer versions of JuMP implement further callback support, MIPLearn should become automatically compatible with these solvers.</p></li>
 </ul>
 </div>
-<section id="Modeling-the-traveling-salesman-problem">
-<h2><span class="section-number">4.1. </span>Modeling the traveling salesman problem<a class="headerlink" href="#Modeling-the-traveling-salesman-problem" title="Link to this heading">¶</a></h2>
+<div class="section" id="Modeling-the-traveling-salesman-problem">
+<h2><span class="section-number">4.1. </span>Modeling the traveling salesman problem<a class="headerlink" href="#Modeling-the-traveling-salesman-problem" title="Permalink to this headline">¶</a></h2>
 <p>Given a list of cities and the distances between them, the <strong>traveling salesman problem (TSP)</strong> asks for the shortest route starting at the first city, visiting each other city exactly once, then returning to the first city. This problem is a generalization of the Hamiltonian path problem, one of Karp’s 21 NP-complete problems, and has many practical applications, including routing delivery trucks and scheduling airline routes.</p>
 <p>To describe an instance of TSP, we need to specify the number of cities <span class="math notranslate nohighlight">\(n\)</span>, and an <span class="math notranslate nohighlight">\(n \times n\)</span> matrix of distances. The class <code class="docutils literal notranslate"><span class="pre">TravelingSalesmanData</span></code>, in the <code class="docutils literal notranslate"><span class="pre">miplearn.problems.tsp</span></code> package, can hold this data:</p>
 <div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="nd">@dataclass</span>
@@ -285,109 +290,109 @@ size; these constraints are added to the formulation only once the solver finds
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[1]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">gurobipy</span> <span class="k">as</span> <span class="nn">gp</span>
-<span class="kn">from</span> <span class="nn">gurobipy</span> <span class="kn">import</span> <span class="n">quicksum</span><span class="p">,</span> <span class="n">GRB</span><span class="p">,</span> <span class="n">tuplelist</span>
-<span class="kn">from</span> <span class="nn">miplearn.solvers.gurobi</span> <span class="kn">import</span> <span class="n">GurobiModel</span>
-<span class="kn">import</span> <span class="nn">networkx</span> <span class="k">as</span> <span class="nn">nx</span>
-<span class="kn">import</span> <span class="nn">numpy</span> <span class="k">as</span> <span class="nn">np</span>
-<span class="kn">from</span> <span class="nn">miplearn.problems.tsp</span> <span class="kn">import</span> <span class="p">(</span>
-    <span class="n">TravelingSalesmanData</span><span class="p">,</span>
-    <span class="n">TravelingSalesmanGenerator</span><span class="p">,</span>
-<span class="p">)</span>
-<span class="kn">from</span> <span class="nn">scipy.stats</span> <span class="kn">import</span> <span class="n">uniform</span><span class="p">,</span> <span class="n">randint</span>
-<span class="kn">from</span> <span class="nn">miplearn.io</span> <span class="kn">import</span> <span class="n">write_pkl_gz</span><span class="p">,</span> <span class="n">read_pkl_gz</span>
-<span class="kn">from</span> <span class="nn">miplearn.collectors.basic</span> <span class="kn">import</span> <span class="n">BasicCollector</span>
-<span class="kn">from</span> <span class="nn">miplearn.solvers.learning</span> <span class="kn">import</span> <span class="n">LearningSolver</span>
-<span class="kn">from</span> <span class="nn">miplearn.components.lazy.mem</span> <span class="kn">import</span> <span class="n">MemorizingLazyComponent</span>
-<span class="kn">from</span> <span class="nn">miplearn.extractors.fields</span> <span class="kn">import</span> <span class="n">H5FieldsExtractor</span>
-<span class="kn">from</span> <span class="nn">sklearn.neighbors</span> <span class="kn">import</span> <span class="n">KNeighborsClassifier</span>
-
-<span class="c1"># Set up random seed to make example more reproducible</span>
-<span class="n">np</span><span class="o">.</span><span class="n">random</span><span class="o">.</span><span class="n">seed</span><span class="p">(</span><span class="mi">42</span><span class="p">)</span>
-
-<span class="c1"># Set up Python logging</span>
-<span class="kn">import</span> <span class="nn">logging</span>
-
-<span class="n">logging</span><span class="o">.</span><span class="n">basicConfig</span><span class="p">(</span><span class="n">level</span><span class="o">=</span><span class="n">logging</span><span class="o">.</span><span class="n">WARNING</span><span class="p">)</span>
-
-
-<span class="k">def</span> <span class="nf">build_tsp_model_gurobipy_simplified</span><span class="p">(</span><span class="n">data</span><span class="p">):</span>
-    <span class="c1"># Read data from file if a filename is provided</span>
-    <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
-        <span class="n">data</span> <span class="o">=</span> <span class="n">read_pkl_gz</span><span class="p">(</span><span class="n">data</span><span class="p">)</span>
-
-    <span class="c1"># Create empty gurobipy model</span>
-    <span class="n">model</span> <span class="o">=</span> <span class="n">gp</span><span class="o">.</span><span class="n">Model</span><span class="p">()</span>
-
-    <span class="c1"># Create set of edges between every pair of cities, for convenience</span>
-    <span class="n">edges</span> <span class="o">=</span> <span class="n">tuplelist</span><span class="p">(</span>
-        <span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">j</span><span class="p">)</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">data</span><span class="o">.</span><span class="n">n_cities</span><span class="p">)</span> <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="n">data</span><span class="o">.</span><span class="n">n_cities</span><span class="p">)</span>
-    <span class="p">)</span>
-
-    <span class="c1"># Add binary variable x[e] for each edge e</span>
-    <span class="n">x</span> <span class="o">=</span> <span class="n">model</span><span class="o">.</span><span class="n">addVars</span><span class="p">(</span><span class="n">edges</span><span class="p">,</span> <span class="n">vtype</span><span class="o">=</span><span class="n">GRB</span><span class="o">.</span><span class="n">BINARY</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="s2">&quot;x&quot;</span><span class="p">)</span>
-
-    <span class="c1"># Add objective function</span>
-    <span class="n">model</span><span class="o">.</span><span class="n">setObjective</span><span class="p">(</span><span class="n">quicksum</span><span class="p">(</span><span class="n">x</span><span class="p">[(</span><span class="n">i</span><span class="p">,</span> <span class="n">j</span><span class="p">)]</span> <span class="o">*</span> <span class="n">data</span><span class="o">.</span><span class="n">distances</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="n">j</span><span class="p">]</span> <span class="k">for</span> <span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">j</span><span class="p">)</span> <span class="ow">in</span> <span class="n">edges</span><span class="p">))</span>
-
-    <span class="c1"># Add constraint: must choose two edges adjacent to each city</span>
-    <span class="n">model</span><span class="o">.</span><span class="n">addConstrs</span><span class="p">(</span>
-        <span class="p">(</span>
-            <span class="n">quicksum</span><span class="p">(</span><span class="n">x</span><span class="p">[</span><span class="nb">min</span><span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">j</span><span class="p">),</span> <span class="nb">max</span><span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">j</span><span class="p">)]</span> <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">data</span><span class="o">.</span><span class="n">n_cities</span><span class="p">)</span> <span class="k">if</span> <span class="n">i</span> <span class="o">!=</span> <span class="n">j</span><span class="p">)</span>
-            <span class="o">==</span> <span class="mi">2</span>
-            <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">data</span><span class="o">.</span><span class="n">n_cities</span><span class="p">)</span>
-        <span class="p">),</span>
-        <span class="n">name</span><span class="o">=</span><span class="s2">&quot;eq_degree&quot;</span><span class="p">,</span>
-    <span class="p">)</span>
-
-    <span class="k">def</span> <span class="nf">lazy_separate</span><span class="p">(</span><span class="n">m</span><span class="p">:</span> <span class="n">GurobiModel</span><span class="p">):</span>
-<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
-<span class="sd">        Callback function that finds subtours in the current solution.</span>
-<span class="sd">        &quot;&quot;&quot;</span>
-        <span class="c1"># Query current value of the x variables</span>
-        <span class="n">x_val</span> <span class="o">=</span> <span class="n">m</span><span class="o">.</span><span class="n">inner</span><span class="o">.</span><span class="n">cbGetSolution</span><span class="p">(</span><span class="n">x</span><span class="p">)</span>
-
-        <span class="c1"># Initialize empty set of violations</span>
-        <span class="n">violations</span> <span class="o">=</span> <span class="p">[]</span>
-
-        <span class="c1"># Build set of edges we have currently selected</span>
-        <span class="n">selected_edges</span> <span class="o">=</span> <span class="p">[</span><span class="n">e</span> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">edges</span> <span class="k">if</span> <span class="n">x_val</span><span class="p">[</span><span class="n">e</span><span class="p">]</span> <span class="o">&gt;</span> <span class="mf">0.5</span><span class="p">]</span>
-
-        <span class="c1"># Build a graph containing the selected edges, using networkx</span>
-        <span class="n">graph</span> <span class="o">=</span> <span class="n">nx</span><span class="o">.</span><span class="n">Graph</span><span class="p">()</span>
-        <span class="n">graph</span><span class="o">.</span><span class="n">add_edges_from</span><span class="p">(</span><span class="n">selected_edges</span><span class="p">)</span>
-
-        <span class="c1"># For each component of the graph</span>
-        <span class="k">for</span> <span class="n">component</span> <span class="ow">in</span> <span class="nb">list</span><span class="p">(</span><span class="n">nx</span><span class="o">.</span><span class="n">connected_components</span><span class="p">(</span><span class="n">graph</span><span class="p">)):</span>
-
-            <span class="c1"># If the component is not the entire graph, we found a</span>
-            <span class="c1"># subtour. Add the edge cut to the list of violations.</span>
-            <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">component</span><span class="p">)</span> <span class="o">&lt;</span> <span class="n">data</span><span class="o">.</span><span class="n">n_cities</span><span class="p">:</span>
-                <span class="n">cut_edges</span> <span class="o">=</span> <span class="p">[</span>
-                    <span class="p">[</span><span class="n">e</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">e</span><span class="p">[</span><span class="mi">1</span><span class="p">]]</span>
-                    <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">edges</span>
-                    <span class="k">if</span> <span class="p">(</span><span class="n">e</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="ow">in</span> <span class="n">component</span> <span class="ow">and</span> <span class="n">e</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">component</span><span class="p">)</span>
-                    <span class="ow">or</span> <span class="p">(</span><span class="n">e</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">component</span> <span class="ow">and</span> <span class="n">e</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="ow">in</span> <span class="n">component</span><span class="p">)</span>
-                <span class="p">]</span>
-                <span class="n">violations</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">cut_edges</span><span class="p">)</span>
-
-        <span class="c1"># Return the list of violations</span>
-        <span class="k">return</span> <span class="n">violations</span>
-
-    <span class="k">def</span> <span class="nf">lazy_enforce</span><span class="p">(</span><span class="n">m</span><span class="p">:</span> <span class="n">GurobiModel</span><span class="p">,</span> <span class="n">violations</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kc">None</span><span class="p">:</span>
-<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
-<span class="sd">        Callback function that, given a list of subtours, adds lazy</span>
-<span class="sd">        constraints to remove them from the feasible region.</span>
-<span class="sd">        &quot;&quot;&quot;</span>
-        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Enforcing </span><span class="si">{</span><span class="nb">len</span><span class="p">(</span><span class="n">violations</span><span class="p">)</span><span class="si">}</span><span class="s2"> subtour elimination constraints&quot;</span><span class="p">)</span>
-        <span class="k">for</span> <span class="n">violation</span> <span class="ow">in</span> <span class="n">violations</span><span class="p">:</span>
-            <span class="n">m</span><span class="o">.</span><span class="n">add_constr</span><span class="p">(</span><span class="n">quicksum</span><span class="p">(</span><span class="n">x</span><span class="p">[</span><span class="n">e</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">e</span><span class="p">[</span><span class="mi">1</span><span class="p">]]</span> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">violation</span><span class="p">)</span> <span class="o">&gt;=</span> <span class="mi">2</span><span class="p">)</span>
-
-    <span class="k">return</span> <span class="n">GurobiModel</span><span class="p">(</span>
-        <span class="n">model</span><span class="p">,</span>
-        <span class="n">lazy_separate</span><span class="o">=</span><span class="n">lazy_separate</span><span class="p">,</span>
-        <span class="n">lazy_enforce</span><span class="o">=</span><span class="n">lazy_enforce</span><span class="p">,</span>
-    <span class="p">)</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>import gurobipy as gp
+from gurobipy import quicksum, GRB, tuplelist
+from miplearn.solvers.gurobi import GurobiModel
+import networkx as nx
+import numpy as np
+from miplearn.problems.tsp import (
+    TravelingSalesmanData,
+    TravelingSalesmanGenerator,
+)
+from scipy.stats import uniform, randint
+from miplearn.io import write_pkl_gz, read_pkl_gz
+from miplearn.collectors.basic import BasicCollector
+from miplearn.solvers.learning import LearningSolver
+from miplearn.components.lazy.mem import MemorizingLazyComponent
+from miplearn.extractors.fields import H5FieldsExtractor
+from sklearn.neighbors import KNeighborsClassifier
+
+# Set up random seed to make example more reproducible
+np.random.seed(42)
+
+# Set up Python logging
+import logging
+
+logging.basicConfig(level=logging.WARNING)
+
+
+def build_tsp_model_gurobipy_simplified(data):
+    # Read data from file if a filename is provided
+    if isinstance(data, str):
+        data = read_pkl_gz(data)
+
+    # Create empty gurobipy model
+    model = gp.Model()
+
+    # Create set of edges between every pair of cities, for convenience
+    edges = tuplelist(
+        (i, j) for i in range(data.n_cities) for j in range(i + 1, data.n_cities)
+    )
+
+    # Add binary variable x[e] for each edge e
+    x = model.addVars(edges, vtype=GRB.BINARY, name=&quot;x&quot;)
+
+    # Add objective function
+    model.setObjective(quicksum(x[(i, j)] * data.distances[i, j] for (i, j) in edges))
+
+    # Add constraint: must choose two edges adjacent to each city
+    model.addConstrs(
+        (
+            quicksum(x[min(i, j), max(i, j)] for j in range(data.n_cities) if i != j)
+            == 2
+            for i in range(data.n_cities)
+        ),
+        name=&quot;eq_degree&quot;,
+    )
+
+    def lazy_separate(m: GurobiModel):
+        &quot;&quot;&quot;
+        Callback function that finds subtours in the current solution.
+        &quot;&quot;&quot;
+        # Query current value of the x variables
+        x_val = m.inner.cbGetSolution(x)
+
+        # Initialize empty set of violations
+        violations = []
+
+        # Build set of edges we have currently selected
+        selected_edges = [e for e in edges if x_val[e] &gt; 0.5]
+
+        # Build a graph containing the selected edges, using networkx
+        graph = nx.Graph()
+        graph.add_edges_from(selected_edges)
+
+        # For each component of the graph
+        for component in list(nx.connected_components(graph)):
+
+            # If the component is not the entire graph, we found a
+            # subtour. Add the edge cut to the list of violations.
+            if len(component) &lt; data.n_cities:
+                cut_edges = [
+                    [e[0], e[1]]
+                    for e in edges
+                    if (e[0] in component and e[1] not in component)
+                    or (e[0] not in component and e[1] in component)
+                ]
+                violations.append(cut_edges)
+
+        # Return the list of violations
+        return violations
+
+    def lazy_enforce(m: GurobiModel, violations) -&gt; None:
+        &quot;&quot;&quot;
+        Callback function that, given a list of subtours, adds lazy
+        constraints to remove them from the feasible region.
+        &quot;&quot;&quot;
+        print(f&quot;Enforcing {len(violations)} subtour elimination constraints&quot;)
+        for violation in violations:
+            m.add_constr(quicksum(x[e[0], e[1]] for e in violation) &gt;= 2)
+
+    return GurobiModel(
+        model,
+        lazy_separate=lazy_separate,
+        lazy_enforce=lazy_enforce,
+    )
 </pre></div>
 </div>
 </div>
@@ -398,55 +403,55 @@ the responsbility of the second callback function, <code class="docutils literal
 <p class="admonition-title">Constraint Representation</p>
 <p>How should user cuts and lazy constraints be represented is a decision that the user can make; MIPLearn is representation agnostic. The objects returned by <code class="docutils literal notranslate"><span class="pre">lazy_separate</span></code>, however, are serialized as JSON and stored in the HDF5 training data files. Therefore, it is recommended to use only simple objects, such as lists, tuples and dictionaries.</p>
 </div>
-</section>
-<section id="Generating-training-data">
-<h2><span class="section-number">4.2. </span>Generating training data<a class="headerlink" href="#Generating-training-data" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Generating-training-data">
+<h2><span class="section-number">4.2. </span>Generating training data<a class="headerlink" href="#Generating-training-data" title="Permalink to this headline">¶</a></h2>
 <p>To test the callback defined above, we generate a small set of TSP instances, using the provided random instance generator. As in the previous tutorial, we generate some test instances and some training instances, then solve them using <code class="docutils literal notranslate"><span class="pre">BasicCollector</span></code>. Input problem data is stored in <code class="docutils literal notranslate"><span class="pre">tsp/train/00000.pkl.gz,</span> <span class="pre">...</span></code>, whereas solver training data (including list of required lazy constraints) is stored in <code class="docutils literal notranslate"><span class="pre">tsp/train/00000.h5,</span> <span class="pre">...</span></code>.</p>
 <div class="nbinput nblast docutils container">
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[2]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="c1"># Configure generator to produce instances with 50 cities located</span>
-<span class="c1"># in the 1000 x 1000 square, and with slightly perturbed distances.</span>
-<span class="n">gen</span> <span class="o">=</span> <span class="n">TravelingSalesmanGenerator</span><span class="p">(</span>
-    <span class="n">x</span><span class="o">=</span><span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">1000.0</span><span class="p">),</span>
-    <span class="n">y</span><span class="o">=</span><span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">1000.0</span><span class="p">),</span>
-    <span class="n">n</span><span class="o">=</span><span class="n">randint</span><span class="p">(</span><span class="n">low</span><span class="o">=</span><span class="mi">50</span><span class="p">,</span> <span class="n">high</span><span class="o">=</span><span class="mi">51</span><span class="p">),</span>
-    <span class="n">gamma</span><span class="o">=</span><span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">1.0</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">0.25</span><span class="p">),</span>
-    <span class="n">fix_cities</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span>
-    <span class="nb">round</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span>
-<span class="p">)</span>
-
-<span class="c1"># Generate 500 instances and store input data file to .pkl.gz files</span>
-<span class="n">data</span> <span class="o">=</span> <span class="n">gen</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="mi">500</span><span class="p">)</span>
-<span class="n">train_data</span> <span class="o">=</span> <span class="n">write_pkl_gz</span><span class="p">(</span><span class="n">data</span><span class="p">[</span><span class="mi">0</span><span class="p">:</span><span class="mi">450</span><span class="p">],</span> <span class="s2">&quot;tsp/train&quot;</span><span class="p">)</span>
-<span class="n">test_data</span> <span class="o">=</span> <span class="n">write_pkl_gz</span><span class="p">(</span><span class="n">data</span><span class="p">[</span><span class="mi">450</span><span class="p">:</span><span class="mi">500</span><span class="p">],</span> <span class="s2">&quot;tsp/test&quot;</span><span class="p">)</span>
-
-<span class="c1"># Solve the training instances in parallel, collecting the required lazy</span>
-<span class="c1"># constraints, in addition to other information, such as optimal solution.</span>
-<span class="n">bc</span> <span class="o">=</span> <span class="n">BasicCollector</span><span class="p">()</span>
-<span class="n">bc</span><span class="o">.</span><span class="n">collect</span><span class="p">(</span><span class="n">train_data</span><span class="p">,</span> <span class="n">build_tsp_model_gurobipy_simplified</span><span class="p">,</span> <span class="n">n_jobs</span><span class="o">=</span><span class="mi">10</span><span class="p">)</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span># Configure generator to produce instances with 50 cities located
+# in the 1000 x 1000 square, and with slightly perturbed distances.
+gen = TravelingSalesmanGenerator(
+    x=uniform(loc=0.0, scale=1000.0),
+    y=uniform(loc=0.0, scale=1000.0),
+    n=randint(low=50, high=51),
+    gamma=uniform(loc=1.0, scale=0.25),
+    fix_cities=True,
+    round=True,
+)
+
+# Generate 500 instances and store input data file to .pkl.gz files
+data = gen.generate(500)
+train_data = write_pkl_gz(data[0:450], &quot;tsp/train&quot;)
+test_data = write_pkl_gz(data[450:500], &quot;tsp/test&quot;)
+
+# Solve the training instances in parallel, collecting the required lazy
+# constraints, in addition to other information, such as optimal solution.
+bc = BasicCollector()
+bc.collect(train_data, build_tsp_model_gurobipy_simplified, n_jobs=10)
 </pre></div>
 </div>
 </div>
-</section>
-<section id="Training-and-solving-new-instances">
-<h2><span class="section-number">4.3. </span>Training and solving new instances<a class="headerlink" href="#Training-and-solving-new-instances" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Training-and-solving-new-instances">
+<h2><span class="section-number">4.3. </span>Training and solving new instances<a class="headerlink" href="#Training-and-solving-new-instances" title="Permalink to this headline">¶</a></h2>
 <p>After producing the training dataset, we can train the machine learning models to predict which lazy constraints are necessary. In this tutorial, we use the following ML strategy: given a new instance, find the 50 most similar ones in the training dataset and verify how often each lazy constraint was required. If a lazy constraint was required for the majority of the 50 most-similar instances, enforce it ahead-of-time for the current instance. To measure instance similarity, use the objective
 function only. This ML strategy can be implemented using <code class="docutils literal notranslate"><span class="pre">MemorizingLazyComponent</span></code> with <code class="docutils literal notranslate"><span class="pre">H5FieldsExtractor</span></code> and <code class="docutils literal notranslate"><span class="pre">KNeighborsClassifier</span></code>, as shown below.</p>
 <div class="nbinput nblast docutils container">
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[3]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="n">solver</span> <span class="o">=</span> <span class="n">LearningSolver</span><span class="p">(</span>
-    <span class="n">components</span><span class="o">=</span><span class="p">[</span>
-        <span class="n">MemorizingLazyComponent</span><span class="p">(</span>
-            <span class="n">extractor</span><span class="o">=</span><span class="n">H5FieldsExtractor</span><span class="p">(</span><span class="n">instance_fields</span><span class="o">=</span><span class="p">[</span><span class="s2">&quot;static_var_obj_coeffs&quot;</span><span class="p">]),</span>
-            <span class="n">clf</span><span class="o">=</span><span class="n">KNeighborsClassifier</span><span class="p">(</span><span class="n">n_neighbors</span><span class="o">=</span><span class="mi">100</span><span class="p">),</span>
-        <span class="p">),</span>
-    <span class="p">],</span>
-<span class="p">)</span>
-<span class="n">solver</span><span class="o">.</span><span class="n">fit</span><span class="p">(</span><span class="n">train_data</span><span class="p">)</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>solver = LearningSolver(
+    components=[
+        MemorizingLazyComponent(
+            extractor=H5FieldsExtractor(instance_fields=[&quot;static_var_obj_coeffs&quot;]),
+            clf=KNeighborsClassifier(n_neighbors=100),
+        ),
+    ],
+)
+solver.fit(train_data)
 </pre></div>
 </div>
 </div>
@@ -455,11 +460,11 @@ function only. This ML strategy can be implemented using <code class="docutils l
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[4]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="c1"># Increase log verbosity, so that we can see what is MIPLearn doing</span>
-<span class="n">logging</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="s2">&quot;miplearn&quot;</span><span class="p">)</span><span class="o">.</span><span class="n">setLevel</span><span class="p">(</span><span class="n">logging</span><span class="o">.</span><span class="n">INFO</span><span class="p">)</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span># Increase log verbosity, so that we can see what is MIPLearn doing
+logging.getLogger(&quot;miplearn&quot;).setLevel(logging.INFO)
 
-<span class="c1"># Solve a new test instance</span>
-<span class="n">solver</span><span class="o">.</span><span class="n">optimize</span><span class="p">(</span><span class="n">test_data</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">build_tsp_model_gurobipy_simplified</span><span class="p">);</span>
+# Solve a new test instance
+solver.optimize(test_data[0], build_tsp_model_gurobipy_simplified);
 </pre></div>
 </div>
 </div>
@@ -565,8 +570,8 @@ User-callback calls 141, time in user-callback 0.00 sec
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[5]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="n">solver</span> <span class="o">=</span> <span class="n">LearningSolver</span><span class="p">(</span><span class="n">components</span><span class="o">=</span><span class="p">[])</span>  <span class="c1"># empty set of ML components</span>
-<span class="n">solver</span><span class="o">.</span><span class="n">optimize</span><span class="p">(</span><span class="n">test_data</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">build_tsp_model_gurobipy_simplified</span><span class="p">);</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>solver = LearningSolver(components=[])  # empty set of ML components
+solver.optimize(test_data[0], build_tsp_model_gurobipy_simplified);
 </pre></div>
 </div>
 </div>
@@ -660,9 +665,9 @@ Best objective 6.219000000000e+03, best bound 6.219000000000e+03, gap 0.0000%
 User-callback calls 170, time in user-callback 0.01 sec
 </pre></div></div>
 </div>
-</section>
-<section id="Learning-user-cuts">
-<h2><span class="section-number">4.4. </span>Learning user cuts<a class="headerlink" href="#Learning-user-cuts" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Learning-user-cuts">
+<h2><span class="section-number">4.4. </span>Learning user cuts<a class="headerlink" href="#Learning-user-cuts" title="Permalink to this headline">¶</a></h2>
 <p>The example above focused on lazy constraints. To enforce user cuts instead, the procedure is very similar, with the following changes:</p>
 <ul class="simple">
 <li><p>Instead of <code class="docutils literal notranslate"><span class="pre">lazy_separate</span></code> and <code class="docutils literal notranslate"><span class="pre">lazy_enforce</span></code>, use <code class="docutils literal notranslate"><span class="pre">cuts_separate</span></code> and <code class="docutils literal notranslate"><span class="pre">cuts_enforce</span></code></p></li>
@@ -677,8 +682,8 @@ User-callback calls 170, time in user-callback 0.01 sec
 </pre></div>
 </div>
 </div>
-</section>
-</section>
+</div>
+</div>
 
 
               </div>

0.4/tutorials/getting-started-gurobipy.ipynb

@@ -45,16 +45,10 @@
     "- Python version, compatible with the Pyomo and Gurobipy modeling languages,\n",
     "- Julia version, compatible with the JuMP modeling language.\n",
     "\n",
-    "In this tutorial, we will demonstrate how to use and install the Python/Gurobipy version of the package. The first step is to install Python 3.8+ in your computer. See the [official Python website for more instructions](https://www.python.org/downloads/). After Python is installed, we proceed to install MIPLearn using `pip`:\n",
+    "In this tutorial, we will demonstrate how to use and install the Python/Gurobipy version of the package. The first step is to install Python 3.9+ in your computer. See the [official Python website for more instructions](https://www.python.org/downloads/). After Python is installed, we proceed to install MIPLearn using `pip`:\n",
     "\n",
     "```\n",
-    "$ pip install MIPLearn==0.4\n",
-    "```\n",
-    "\n",
-    "In addition to MIPLearn itself, we will also install Gurobi 10.0, a state-of-the-art commercial MILP solver. This step also install a demo license for Gurobi, which should able to solve the small optimization problems in this tutorial. A license is required for solving larger-scale problems.\n",
-    "\n",
-    "```\n",
-    "$ pip install 'gurobipy>=10,<10.1'\n",
+    "$ pip install MIPLearn~=0.4\n",
     "```"
    ]
   },

0.4/tutorials/getting-started-gurobipy/index.html

@@ -1,10 +1,10 @@
+
 <!DOCTYPE html>
 
-<html lang="en" data-content_root="../../">
+<html>
   <head>
     <meta charset="utf-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
-
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>2. Getting started (Gurobipy) &#8212; MIPLearn 0.4</title>
     
   <link href="../../_static/css/theme.css" rel="stylesheet" />
@@ -22,21 +22,27 @@
       
 
     
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+    <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
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-    <script>window.MathJax = {"tex": {"inlineMath": [["$", "$"], ["\\(", "\\)"]], "processEscapes": true}, "options": {"ignoreHtmlClass": "tex2jax_ignore|mathjax_ignore|document", "processHtmlClass": "tex2jax_process|mathjax_process|math|output_area"}}</script>
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     <link rel="next" title="3. Getting started (JuMP)" href="../getting-started-jump/" />
@@ -68,7 +74,7 @@
   <input type="search" class="form-control" name="q" id="search-input" placeholder="Search the docs ..." aria-label="Search the docs ..." autocomplete="off" >
 </form><nav class="bd-links" id="bd-docs-nav" aria-label="Main navigation">
     <div class="bd-toc-item active">
-        <p class="caption" role="heading">
+        <p class="caption">
  <span class="caption-text">
   Tutorials
  </span>
@@ -95,7 +101,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   User Guide
  </span>
@@ -127,7 +133,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   Python API Reference
  </span>
@@ -266,10 +272,10 @@
         
               <div>
                 
-  <section id="Getting-started-(Gurobipy)">
-<h1><span class="section-number">2. </span>Getting started (Gurobipy)<a class="headerlink" href="#Getting-started-(Gurobipy)" title="Link to this heading">¶</a></h1>
-<section id="Introduction">
-<h2><span class="section-number">2.1. </span>Introduction<a class="headerlink" href="#Introduction" title="Link to this heading">¶</a></h2>
+  <div class="section" id="Getting-started-(Gurobipy)">
+<h1><span class="section-number">2. </span>Getting started (Gurobipy)<a class="headerlink" href="#Getting-started-(Gurobipy)" title="Permalink to this headline">¶</a></h1>
+<div class="section" id="Introduction">
+<h2><span class="section-number">2.1. </span>Introduction<a class="headerlink" href="#Introduction" title="Permalink to this headline">¶</a></h2>
 <p><strong>MIPLearn</strong> is an open source framework that uses machine learning (ML) to accelerate the performance of mixed-integer programming solvers (e.g. Gurobi, CPLEX, XPRESS). In this tutorial, we will:</p>
 <ol class="arabic simple">
 <li><p>Install the Python/Gurobipy version of MIPLearn</p></li>
@@ -285,29 +291,25 @@
 <p class="admonition-title">Warning</p>
 <p>MIPLearn is still in early development stage. If run into any bugs or issues, please submit a bug report in our GitHub repository. Comments, suggestions and pull requests are also very welcome!</p>
 </div>
-</section>
-<section id="Installation">
-<h2><span class="section-number">2.2. </span>Installation<a class="headerlink" href="#Installation" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Installation">
+<h2><span class="section-number">2.2. </span>Installation<a class="headerlink" href="#Installation" title="Permalink to this headline">¶</a></h2>
 <p>MIPLearn is available in two versions:</p>
 <ul class="simple">
 <li><p>Python version, compatible with the Pyomo and Gurobipy modeling languages,</p></li>
 <li><p>Julia version, compatible with the JuMP modeling language.</p></li>
 </ul>
-<p>In this tutorial, we will demonstrate how to use and install the Python/Gurobipy version of the package. The first step is to install Python 3.8+ in your computer. See the <a class="reference external" href="https://www.python.org/downloads/">official Python website for more instructions</a>. After Python is installed, we proceed to install MIPLearn using <code class="docutils literal notranslate"><span class="pre">pip</span></code>:</p>
-<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>$ pip install MIPLearn==0.4
-</pre></div>
-</div>
-<p>In addition to MIPLearn itself, we will also install Gurobi 10.0, a state-of-the-art commercial MILP solver. This step also install a demo license for Gurobi, which should able to solve the small optimization problems in this tutorial. A license is required for solving larger-scale problems.</p>
-<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>$ pip install &#39;gurobipy&gt;=10,&lt;10.1&#39;
+<p>In this tutorial, we will demonstrate how to use and install the Python/Gurobipy version of the package. The first step is to install Python 3.9+ in your computer. See the <a class="reference external" href="https://www.python.org/downloads/">official Python website for more instructions</a>. After Python is installed, we proceed to install MIPLearn using <code class="docutils literal notranslate"><span class="pre">pip</span></code>:</p>
+<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>$ pip install MIPLearn~=0.4
 </pre></div>
 </div>
 <div class="admonition note">
 <p class="admonition-title">Note</p>
 <p>In the code above, we install specific version of all packages to ensure that this tutorial keeps running in the future, even when newer (and possibly incompatible) versions of the packages are released. This is usually a recommended practice for all Python projects.</p>
 </div>
-</section>
-<section id="Modeling-a-simple-optimization-problem">
-<h2><span class="section-number">2.3. </span>Modeling a simple optimization problem<a class="headerlink" href="#Modeling-a-simple-optimization-problem" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Modeling-a-simple-optimization-problem">
+<h2><span class="section-number">2.3. </span>Modeling a simple optimization problem<a class="headerlink" href="#Modeling-a-simple-optimization-problem" title="Permalink to this headline">¶</a></h2>
 <p>To illustrate how can MIPLearn be used, we will model and solve a small optimization problem related to power systems optimization. The problem we discuss below is a simplification of the <strong>unit commitment problem,</strong> a practical optimization problem solved daily by electric grid operators around the world.</p>
 <p>Suppose that a utility company needs to decide which electrical generators should be online at each hour of the day, as well as how much power should each generator produce. More specifically, assume that the company owns <span class="math notranslate nohighlight">\(n\)</span> generators, denoted by <span class="math notranslate nohighlight">\(g_1, \ldots, g_n\)</span>. Each generator can either be online or offline. An online generator <span class="math notranslate nohighlight">\(g_i\)</span> can produce between <span class="math notranslate nohighlight">\(p^\text{min}_i\)</span> to <span class="math notranslate nohighlight">\(p^\text{max}_i\)</span> megawatts of power, and it costs the company
 <span class="math notranslate nohighlight">\(c^\text{fix}_i + c^\text{var}_i y_i\)</span>, where <span class="math notranslate nohighlight">\(y_i\)</span> is the amount of power produced. An offline generator produces nothing and costs nothing. The total amount of power to be produced needs to be exactly equal to the total demand <span class="math notranslate nohighlight">\(d\)</span> (in megawatts).</p>
@@ -330,19 +332,19 @@
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[1]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">dataclasses</span> <span class="kn">import</span> <span class="n">dataclass</span>
-<span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">List</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>from dataclasses import dataclass
+from typing import List
 
-<span class="kn">import</span> <span class="nn">numpy</span> <span class="k">as</span> <span class="nn">np</span>
+import numpy as np
 
 
-<span class="nd">@dataclass</span>
-<span class="k">class</span> <span class="nc">UnitCommitmentData</span><span class="p">:</span>
-    <span class="n">demand</span><span class="p">:</span> <span class="nb">float</span>
-    <span class="n">pmin</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">float</span><span class="p">]</span>
-    <span class="n">pmax</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">float</span><span class="p">]</span>
-    <span class="n">cfix</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">float</span><span class="p">]</span>
-    <span class="n">cvar</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">float</span><span class="p">]</span>
+@dataclass
+class UnitCommitmentData:
+    demand: float
+    pmin: List[float]
+    pmax: List[float]
+    cfix: List[float]
+    cvar: List[float]
 </pre></div>
 </div>
 </div>
@@ -351,28 +353,28 @@
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[2]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">gurobipy</span> <span class="k">as</span> <span class="nn">gp</span>
-<span class="kn">from</span> <span class="nn">gurobipy</span> <span class="kn">import</span> <span class="n">GRB</span><span class="p">,</span> <span class="n">quicksum</span>
-<span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">Union</span>
-<span class="kn">from</span> <span class="nn">miplearn.io</span> <span class="kn">import</span> <span class="n">read_pkl_gz</span>
-<span class="kn">from</span> <span class="nn">miplearn.solvers.gurobi</span> <span class="kn">import</span> <span class="n">GurobiModel</span>
-
-
-<span class="k">def</span> <span class="nf">build_uc_model</span><span class="p">(</span><span class="n">data</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">UnitCommitmentData</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="n">GurobiModel</span><span class="p">:</span>
-    <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
-        <span class="n">data</span> <span class="o">=</span> <span class="n">read_pkl_gz</span><span class="p">(</span><span class="n">data</span><span class="p">)</span>
-
-    <span class="n">model</span> <span class="o">=</span> <span class="n">gp</span><span class="o">.</span><span class="n">Model</span><span class="p">()</span>
-    <span class="n">n</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">data</span><span class="o">.</span><span class="n">pmin</span><span class="p">)</span>
-    <span class="n">x</span> <span class="o">=</span> <span class="n">model</span><span class="o">.</span><span class="n">_x</span> <span class="o">=</span> <span class="n">model</span><span class="o">.</span><span class="n">addVars</span><span class="p">(</span><span class="n">n</span><span class="p">,</span> <span class="n">vtype</span><span class="o">=</span><span class="n">GRB</span><span class="o">.</span><span class="n">BINARY</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="s2">&quot;x&quot;</span><span class="p">)</span>
-    <span class="n">y</span> <span class="o">=</span> <span class="n">model</span><span class="o">.</span><span class="n">_y</span> <span class="o">=</span> <span class="n">model</span><span class="o">.</span><span class="n">addVars</span><span class="p">(</span><span class="n">n</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="s2">&quot;y&quot;</span><span class="p">)</span>
-    <span class="n">model</span><span class="o">.</span><span class="n">setObjective</span><span class="p">(</span>
-        <span class="n">quicksum</span><span class="p">(</span><span class="n">data</span><span class="o">.</span><span class="n">cfix</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">*</span> <span class="n">x</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">+</span> <span class="n">data</span><span class="o">.</span><span class="n">cvar</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">*</span> <span class="n">y</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">n</span><span class="p">))</span>
-    <span class="p">)</span>
-    <span class="n">model</span><span class="o">.</span><span class="n">addConstrs</span><span class="p">(</span><span class="n">y</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">&lt;=</span> <span class="n">data</span><span class="o">.</span><span class="n">pmax</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">*</span> <span class="n">x</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">n</span><span class="p">))</span>
-    <span class="n">model</span><span class="o">.</span><span class="n">addConstrs</span><span class="p">(</span><span class="n">y</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">&gt;=</span> <span class="n">data</span><span class="o">.</span><span class="n">pmin</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">*</span> <span class="n">x</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">n</span><span class="p">))</span>
-    <span class="n">model</span><span class="o">.</span><span class="n">addConstr</span><span class="p">(</span><span class="n">quicksum</span><span class="p">(</span><span class="n">y</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">n</span><span class="p">))</span> <span class="o">==</span> <span class="n">data</span><span class="o">.</span><span class="n">demand</span><span class="p">)</span>
-    <span class="k">return</span> <span class="n">GurobiModel</span><span class="p">(</span><span class="n">model</span><span class="p">)</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>import gurobipy as gp
+from gurobipy import GRB, quicksum
+from typing import Union
+from miplearn.io import read_pkl_gz
+from miplearn.solvers.gurobi import GurobiModel
+
+
+def build_uc_model(data: Union[str, UnitCommitmentData]) -&gt; GurobiModel:
+    if isinstance(data, str):
+        data = read_pkl_gz(data)
+
+    model = gp.Model()
+    n = len(data.pmin)
+    x = model._x = model.addVars(n, vtype=GRB.BINARY, name=&quot;x&quot;)
+    y = model._y = model.addVars(n, name=&quot;y&quot;)
+    model.setObjective(
+        quicksum(data.cfix[i] * x[i] + data.cvar[i] * y[i] for i in range(n))
+    )
+    model.addConstrs(y[i] &lt;= data.pmax[i] * x[i] for i in range(n))
+    model.addConstrs(y[i] &gt;= data.pmin[i] * x[i] for i in range(n))
+    model.addConstr(quicksum(y[i] for i in range(n)) == data.demand)
+    return GurobiModel(model)
 </pre></div>
 </div>
 </div>
@@ -381,20 +383,20 @@
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[3]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="n">model</span> <span class="o">=</span> <span class="n">build_uc_model</span><span class="p">(</span>
-    <span class="n">UnitCommitmentData</span><span class="p">(</span>
-        <span class="n">demand</span><span class="o">=</span><span class="mf">100.0</span><span class="p">,</span>
-        <span class="n">pmin</span><span class="o">=</span><span class="p">[</span><span class="mi">10</span><span class="p">,</span> <span class="mi">20</span><span class="p">,</span> <span class="mi">30</span><span class="p">],</span>
-        <span class="n">pmax</span><span class="o">=</span><span class="p">[</span><span class="mi">50</span><span class="p">,</span> <span class="mi">60</span><span class="p">,</span> <span class="mi">70</span><span class="p">],</span>
-        <span class="n">cfix</span><span class="o">=</span><span class="p">[</span><span class="mi">700</span><span class="p">,</span> <span class="mi">600</span><span class="p">,</span> <span class="mi">500</span><span class="p">],</span>
-        <span class="n">cvar</span><span class="o">=</span><span class="p">[</span><span class="mf">1.5</span><span class="p">,</span> <span class="mf">2.0</span><span class="p">,</span> <span class="mf">2.5</span><span class="p">],</span>
-    <span class="p">)</span>
-<span class="p">)</span>
-
-<span class="n">model</span><span class="o">.</span><span class="n">optimize</span><span class="p">()</span>
-<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;obj =&quot;</span><span class="p">,</span> <span class="n">model</span><span class="o">.</span><span class="n">inner</span><span class="o">.</span><span class="n">objVal</span><span class="p">)</span>
-<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;x =&quot;</span><span class="p">,</span> <span class="p">[</span><span class="n">model</span><span class="o">.</span><span class="n">inner</span><span class="o">.</span><span class="n">_x</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">.</span><span class="n">x</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">3</span><span class="p">)])</span>
-<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;y =&quot;</span><span class="p">,</span> <span class="p">[</span><span class="n">model</span><span class="o">.</span><span class="n">inner</span><span class="o">.</span><span class="n">_y</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">.</span><span class="n">x</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">3</span><span class="p">)])</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>model = build_uc_model(
+    UnitCommitmentData(
+        demand=100.0,
+        pmin=[10, 20, 30],
+        pmax=[50, 60, 70],
+        cfix=[700, 600, 500],
+        cvar=[1.5, 2.0, 2.5],
+    )
+)
+
+model.optimize()
+print(&quot;obj =&quot;, model.inner.objVal)
+print(&quot;x =&quot;, [model.inner._x[i].x for i in range(3)])
+print(&quot;y =&quot;, [model.inner._y[i].x for i in range(3)])
 </pre></div>
 </div>
 </div>
@@ -455,9 +457,9 @@ y = [0.0, 60.0, 40.0]
 <li><p>To ensure training data consistency, MIPLearn requires all decision variables to have names.</p></li>
 </ul>
 </div>
-</section>
-<section id="Generating-training-data">
-<h2><span class="section-number">2.4. </span>Generating training data<a class="headerlink" href="#Generating-training-data" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Generating-training-data">
+<h2><span class="section-number">2.4. </span>Generating training data<a class="headerlink" href="#Generating-training-data" title="Permalink to this headline">¶</a></h2>
 <p>Although Gurobi could solve the small example above in a fraction of a second, it gets slower for larger and more complex versions of the problem. If this is a problem that needs to be solved frequently, as it is often the case in practice, it could make sense to spend some time upfront generating a <strong>trained</strong> solver, which can optimize new instances (similar to the ones it was trained on) faster.</p>
 <p>In the following, we will use MIPLearn to train machine learning models that is able to predict the optimal solution for instances that follow a given probability distribution, then it will provide this predicted solution to Gurobi as a warm start. Before we can train the model, we need to collect training data by solving a large number of instances. In real-world situations, we may construct these training instances based on historical data. In this tutorial, we will construct them using a
 random instance generator:</p>
@@ -465,28 +467,28 @@ random instance generator:</p>
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[4]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">scipy.stats</span> <span class="kn">import</span> <span class="n">uniform</span>
-<span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">List</span>
-<span class="kn">import</span> <span class="nn">random</span>
-
-
-<span class="k">def</span> <span class="nf">random_uc_data</span><span class="p">(</span><span class="n">samples</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">n</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">seed</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">42</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">List</span><span class="p">[</span><span class="n">UnitCommitmentData</span><span class="p">]:</span>
-    <span class="n">random</span><span class="o">.</span><span class="n">seed</span><span class="p">(</span><span class="n">seed</span><span class="p">)</span>
-    <span class="n">np</span><span class="o">.</span><span class="n">random</span><span class="o">.</span><span class="n">seed</span><span class="p">(</span><span class="n">seed</span><span class="p">)</span>
-    <span class="n">pmin</span> <span class="o">=</span> <span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">100_000.0</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">400_000.0</span><span class="p">)</span><span class="o">.</span><span class="n">rvs</span><span class="p">(</span><span class="n">n</span><span class="p">)</span>
-    <span class="n">pmax</span> <span class="o">=</span> <span class="n">pmin</span> <span class="o">*</span> <span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">2.0</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">2.5</span><span class="p">)</span><span class="o">.</span><span class="n">rvs</span><span class="p">(</span><span class="n">n</span><span class="p">)</span>
-    <span class="n">cfix</span> <span class="o">=</span> <span class="n">pmin</span> <span class="o">*</span> <span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">100.0</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">25.0</span><span class="p">)</span><span class="o">.</span><span class="n">rvs</span><span class="p">(</span><span class="n">n</span><span class="p">)</span>
-    <span class="n">cvar</span> <span class="o">=</span> <span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">1.25</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">0.25</span><span class="p">)</span><span class="o">.</span><span class="n">rvs</span><span class="p">(</span><span class="n">n</span><span class="p">)</span>
-    <span class="k">return</span> <span class="p">[</span>
-        <span class="n">UnitCommitmentData</span><span class="p">(</span>
-            <span class="n">demand</span><span class="o">=</span><span class="n">pmax</span><span class="o">.</span><span class="n">sum</span><span class="p">()</span> <span class="o">*</span> <span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">0.5</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">0.25</span><span class="p">)</span><span class="o">.</span><span class="n">rvs</span><span class="p">(),</span>
-            <span class="n">pmin</span><span class="o">=</span><span class="n">pmin</span><span class="p">,</span>
-            <span class="n">pmax</span><span class="o">=</span><span class="n">pmax</span><span class="p">,</span>
-            <span class="n">cfix</span><span class="o">=</span><span class="n">cfix</span><span class="p">,</span>
-            <span class="n">cvar</span><span class="o">=</span><span class="n">cvar</span><span class="p">,</span>
-        <span class="p">)</span>
-        <span class="k">for</span> <span class="n">_</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">samples</span><span class="p">)</span>
-    <span class="p">]</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>from scipy.stats import uniform
+from typing import List
+import random
+
+
+def random_uc_data(samples: int, n: int, seed: int = 42) -&gt; List[UnitCommitmentData]:
+    random.seed(seed)
+    np.random.seed(seed)
+    pmin = uniform(loc=100_000.0, scale=400_000.0).rvs(n)
+    pmax = pmin * uniform(loc=2.0, scale=2.5).rvs(n)
+    cfix = pmin * uniform(loc=100.0, scale=25.0).rvs(n)
+    cvar = uniform(loc=1.25, scale=0.25).rvs(n)
+    return [
+        UnitCommitmentData(
+            demand=pmax.sum() * uniform(loc=0.5, scale=0.25).rvs(),
+            pmin=pmin,
+            pmax=pmax,
+            cfix=cfix,
+            cvar=cvar,
+        )
+        for _ in range(samples)
+    ]
 </pre></div>
 </div>
 </div>
@@ -497,11 +499,11 @@ machines. The code below generates the files <code class="docutils literal notra
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[5]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">miplearn.io</span> <span class="kn">import</span> <span class="n">write_pkl_gz</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>from miplearn.io import write_pkl_gz
 
-<span class="n">data</span> <span class="o">=</span> <span class="n">random_uc_data</span><span class="p">(</span><span class="n">samples</span><span class="o">=</span><span class="mi">500</span><span class="p">,</span> <span class="n">n</span><span class="o">=</span><span class="mi">500</span><span class="p">)</span>
-<span class="n">train_data</span> <span class="o">=</span> <span class="n">write_pkl_gz</span><span class="p">(</span><span class="n">data</span><span class="p">[</span><span class="mi">0</span><span class="p">:</span><span class="mi">450</span><span class="p">],</span> <span class="s2">&quot;uc/train&quot;</span><span class="p">)</span>
-<span class="n">test_data</span> <span class="o">=</span> <span class="n">write_pkl_gz</span><span class="p">(</span><span class="n">data</span><span class="p">[</span><span class="mi">450</span><span class="p">:</span><span class="mi">500</span><span class="p">],</span> <span class="s2">&quot;uc/test&quot;</span><span class="p">)</span>
+data = random_uc_data(samples=500, n=500)
+train_data = write_pkl_gz(data[0:450], &quot;uc/train&quot;)
+test_data = write_pkl_gz(data[450:500], &quot;uc/test&quot;)
 </pre></div>
 </div>
 </div>
@@ -510,16 +512,16 @@ machines. The code below generates the files <code class="docutils literal notra
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[6]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">miplearn.collectors.basic</span> <span class="kn">import</span> <span class="n">BasicCollector</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>from miplearn.collectors.basic import BasicCollector
 
-<span class="n">bc</span> <span class="o">=</span> <span class="n">BasicCollector</span><span class="p">()</span>
-<span class="n">bc</span><span class="o">.</span><span class="n">collect</span><span class="p">(</span><span class="n">train_data</span><span class="p">,</span> <span class="n">build_uc_model</span><span class="p">)</span>
+bc = BasicCollector()
+bc.collect(train_data, build_uc_model)
 </pre></div>
 </div>
 </div>
-</section>
-<section id="Training-and-solving-test-instances">
-<h2><span class="section-number">2.5. </span>Training and solving test instances<a class="headerlink" href="#Training-and-solving-test-instances" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Training-and-solving-test-instances">
+<h2><span class="section-number">2.5. </span>Training and solving test instances<a class="headerlink" href="#Training-and-solving-test-instances" title="Permalink to this headline">¶</a></h2>
 <p>With training data in hand, we can now design and train a machine learning model to accelerate solver performance. In this tutorial, for illustration purposes, we will use ML to generate a good warm start using <span class="math notranslate nohighlight">\(k\)</span>-nearest neighbors. More specifically, the strategy is to:</p>
 <ol class="arabic simple">
 <li><p>Memorize the optimal solutions of all training instances;</p></li>
@@ -532,22 +534,22 @@ machines. The code below generates the files <code class="docutils literal notra
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[7]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">sklearn.neighbors</span> <span class="kn">import</span> <span class="n">KNeighborsClassifier</span>
-<span class="kn">from</span> <span class="nn">miplearn.components.primal.actions</span> <span class="kn">import</span> <span class="n">SetWarmStart</span>
-<span class="kn">from</span> <span class="nn">miplearn.components.primal.mem</span> <span class="kn">import</span> <span class="p">(</span>
-    <span class="n">MemorizingPrimalComponent</span><span class="p">,</span>
-    <span class="n">MergeTopSolutions</span><span class="p">,</span>
-<span class="p">)</span>
-<span class="kn">from</span> <span class="nn">miplearn.extractors.fields</span> <span class="kn">import</span> <span class="n">H5FieldsExtractor</span>
-
-<span class="n">comp</span> <span class="o">=</span> <span class="n">MemorizingPrimalComponent</span><span class="p">(</span>
-    <span class="n">clf</span><span class="o">=</span><span class="n">KNeighborsClassifier</span><span class="p">(</span><span class="n">n_neighbors</span><span class="o">=</span><span class="mi">25</span><span class="p">),</span>
-    <span class="n">extractor</span><span class="o">=</span><span class="n">H5FieldsExtractor</span><span class="p">(</span>
-        <span class="n">instance_fields</span><span class="o">=</span><span class="p">[</span><span class="s2">&quot;static_constr_rhs&quot;</span><span class="p">],</span>
-    <span class="p">),</span>
-    <span class="n">constructor</span><span class="o">=</span><span class="n">MergeTopSolutions</span><span class="p">(</span><span class="mi">25</span><span class="p">,</span> <span class="p">[</span><span class="mf">0.0</span><span class="p">,</span> <span class="mf">1.0</span><span class="p">]),</span>
-    <span class="n">action</span><span class="o">=</span><span class="n">SetWarmStart</span><span class="p">(),</span>
-<span class="p">)</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>from sklearn.neighbors import KNeighborsClassifier
+from miplearn.components.primal.actions import SetWarmStart
+from miplearn.components.primal.mem import (
+    MemorizingPrimalComponent,
+    MergeTopSolutions,
+)
+from miplearn.extractors.fields import H5FieldsExtractor
+
+comp = MemorizingPrimalComponent(
+    clf=KNeighborsClassifier(n_neighbors=25),
+    extractor=H5FieldsExtractor(
+        instance_fields=[&quot;static_constr_rhs&quot;],
+    ),
+    constructor=MergeTopSolutions(25, [0.0, 1.0]),
+    action=SetWarmStart(),
+)
 </pre></div>
 </div>
 </div>
@@ -556,11 +558,11 @@ machines. The code below generates the files <code class="docutils literal notra
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[8]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">miplearn.solvers.learning</span> <span class="kn">import</span> <span class="n">LearningSolver</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>from miplearn.solvers.learning import LearningSolver
 
-<span class="n">solver_ml</span> <span class="o">=</span> <span class="n">LearningSolver</span><span class="p">(</span><span class="n">components</span><span class="o">=</span><span class="p">[</span><span class="n">comp</span><span class="p">])</span>
-<span class="n">solver_ml</span><span class="o">.</span><span class="n">fit</span><span class="p">(</span><span class="n">train_data</span><span class="p">)</span>
-<span class="n">solver_ml</span><span class="o">.</span><span class="n">optimize</span><span class="p">(</span><span class="n">test_data</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">build_uc_model</span><span class="p">)</span>
+solver_ml = LearningSolver(components=[comp])
+solver_ml.fit(train_data)
+solver_ml.optimize(test_data[0], build_uc_model)
 </pre></div>
 </div>
 </div>
@@ -654,9 +656,9 @@ User-callback calls 193, time in user-callback 0.00 sec
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[9]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="n">solver_baseline</span> <span class="o">=</span> <span class="n">LearningSolver</span><span class="p">(</span><span class="n">components</span><span class="o">=</span><span class="p">[])</span>
-<span class="n">solver_baseline</span><span class="o">.</span><span class="n">fit</span><span class="p">(</span><span class="n">train_data</span><span class="p">)</span>
-<span class="n">solver_baseline</span><span class="o">.</span><span class="n">optimize</span><span class="p">(</span><span class="n">test_data</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">build_uc_model</span><span class="p">);</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>solver_baseline = LearningSolver(components=[])
+solver_baseline.fit(train_data)
+solver_baseline.optimize(test_data[0], build_uc_model);
 </pre></div>
 </div>
 </div>
@@ -747,20 +749,20 @@ User-callback calls 708, time in user-callback 0.00 sec
 </pre></div></div>
 </div>
 <p>In the log above, the <code class="docutils literal notranslate"><span class="pre">MIP</span> <span class="pre">start</span></code> line is missing, and Gurobi had to start with a significantly inferior initial solution. The solver was still able to find the optimal solution at the end, but it required using its own internal heuristic procedures. In this example, because we solve very small optimization problems, there was almost no difference in terms of running time, but the difference can be significant for larger problems.</p>
-</section>
-<section id="Accessing-the-solution">
-<h2><span class="section-number">2.6. </span>Accessing the solution<a class="headerlink" href="#Accessing-the-solution" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Accessing-the-solution">
+<h2><span class="section-number">2.6. </span>Accessing the solution<a class="headerlink" href="#Accessing-the-solution" title="Permalink to this headline">¶</a></h2>
 <p>In the example above, we used <code class="docutils literal notranslate"><span class="pre">LearningSolver.solve</span></code> together with data files to solve both the training and the test instances. In the following example, we show how to build and solve a Pyomo model entirely in-memory, using our trained solver.</p>
 <div class="nbinput docutils container">
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[10]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="n">data</span> <span class="o">=</span> <span class="n">random_uc_data</span><span class="p">(</span><span class="n">samples</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">n</span><span class="o">=</span><span class="mi">500</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
-<span class="n">model</span> <span class="o">=</span> <span class="n">build_uc_model</span><span class="p">(</span><span class="n">data</span><span class="p">)</span>
-<span class="n">solver_ml</span><span class="o">.</span><span class="n">optimize</span><span class="p">(</span><span class="n">model</span><span class="p">)</span>
-<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;obj =&quot;</span><span class="p">,</span> <span class="n">model</span><span class="o">.</span><span class="n">inner</span><span class="o">.</span><span class="n">objVal</span><span class="p">)</span>
-<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;x =&quot;</span><span class="p">,</span> <span class="p">[</span><span class="n">model</span><span class="o">.</span><span class="n">inner</span><span class="o">.</span><span class="n">_x</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">.</span><span class="n">x</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">3</span><span class="p">)])</span>
-<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;y =&quot;</span><span class="p">,</span> <span class="p">[</span><span class="n">model</span><span class="o">.</span><span class="n">inner</span><span class="o">.</span><span class="n">_y</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">.</span><span class="n">x</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">3</span><span class="p">)])</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>data = random_uc_data(samples=1, n=500)[0]
+model = build_uc_model(data)
+solver_ml.optimize(model)
+print(&quot;obj =&quot;, model.inner.objVal)
+print(&quot;x =&quot;, [model.inner._x[i].x for i in range(3)])
+print(&quot;y =&quot;, [model.inner._y[i].x for i in range(3)])
 </pre></div>
 </div>
 </div>
@@ -855,8 +857,8 @@ y = [935662.0949262811, 1604270.0218116897, 0.0]
 </pre></div>
 </div>
 </div>
-</section>
-</section>
+</div>
+</div>
 
 
               </div>

0.4/tutorials/getting-started-jump/index.html

@@ -1,10 +1,10 @@
+
 <!DOCTYPE html>
 
-<html lang="en" data-content_root="../../">
+<html>
   <head>
     <meta charset="utf-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
-
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>3. Getting started (JuMP) &#8212; MIPLearn 0.4</title>
     
   <link href="../../_static/css/theme.css" rel="stylesheet" />
@@ -22,21 +22,28 @@
       
 
     
-    <link rel="stylesheet" type="text/css" href="../../_static/pygments.css?v=362ab14a" />
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-    <link rel="stylesheet" type="text/css" href="../../_static/custom.css?v=f8244a84" />
+    <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
+    <link rel="stylesheet" href="../../_static/sphinx-book-theme.acff12b8f9c144ce68a297486a2fa670.css" type="text/css" />
+    <link rel="stylesheet" type="text/css" href="../../_static/nbsphinx-code-cells.css" />
+    <link rel="stylesheet" type="text/css" href="../../_static/nbsphinx-code-cells.css" />
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+    <link rel="stylesheet" type="text/css" href="../../_static/custom.css" />
     
   <link rel="preload" as="script" href="../../_static/js/index.1c5a1a01449ed65a7b51.js">
 
-    <script src="../../_static/documentation_options.js?v=751a5dd3"></script>
-    <script src="../../_static/doctools.js?v=888ff710"></script>
-    <script src="../../_static/sphinx_highlight.js?v=dc90522c"></script>
+    <script id="documentation_options" data-url_root="../../" src="../../_static/documentation_options.js"></script>
+    <script src="../../_static/jquery.js"></script>
+    <script src="../../_static/underscore.js"></script>
+    <script src="../../_static/doctools.js"></script>
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+    <script src="../../_static/sphinx-book-theme.12a9622fbb08dcb3a2a40b2c02b83a57.js"></script>
+    <script async="async" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/latest.js?config=TeX-AMS-MML_HTMLorMML"></script>
     <script type="text/x-mathjax-config">MathJax.Hub.Config({"tex2jax": {"inlineMath": [["\\(", "\\)"]], "displayMath": [["\\[", "\\]"]], "processRefs": false, "processEnvironments": false}})</script>
-    <script>window.MathJax = {"tex": {"inlineMath": [["$", "$"], ["\\(", "\\)"]], "processEscapes": true}, "options": {"ignoreHtmlClass": "tex2jax_ignore|mathjax_ignore|document", "processHtmlClass": "tex2jax_process|mathjax_process|math|output_area"}}</script>
-    <script defer="defer" src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>
     <link rel="index" title="Index" href="../../genindex/" />
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     <link rel="next" title="4. User cuts and lazy constraints" href="../cuts-gurobipy/" />
@@ -68,7 +75,7 @@
   <input type="search" class="form-control" name="q" id="search-input" placeholder="Search the docs ..." aria-label="Search the docs ..." autocomplete="off" >
 </form><nav class="bd-links" id="bd-docs-nav" aria-label="Main navigation">
     <div class="bd-toc-item active">
-        <p class="caption" role="heading">
+        <p class="caption">
  <span class="caption-text">
   Tutorials
  </span>
@@ -95,7 +102,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   User Guide
  </span>
@@ -127,7 +134,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   Python API Reference
  </span>
@@ -266,10 +273,10 @@
         
               <div>
                 
-  <section id="Getting-started-(JuMP)">
-<h1><span class="section-number">3. </span>Getting started (JuMP)<a class="headerlink" href="#Getting-started-(JuMP)" title="Link to this heading">¶</a></h1>
-<section id="Introduction">
-<h2><span class="section-number">3.1. </span>Introduction<a class="headerlink" href="#Introduction" title="Link to this heading">¶</a></h2>
+  <div class="section" id="Getting-started-(JuMP)">
+<h1><span class="section-number">3. </span>Getting started (JuMP)<a class="headerlink" href="#Getting-started-(JuMP)" title="Permalink to this headline">¶</a></h1>
+<div class="section" id="Introduction">
+<h2><span class="section-number">3.1. </span>Introduction<a class="headerlink" href="#Introduction" title="Permalink to this headline">¶</a></h2>
 <p><strong>MIPLearn</strong> is an open source framework that uses machine learning (ML) to accelerate the performance of mixed-integer programming solvers (e.g. Gurobi, CPLEX, XPRESS). In this tutorial, we will:</p>
 <ol class="arabic simple">
 <li><p>Install the Julia/JuMP version of MIPLearn</p></li>
@@ -281,9 +288,9 @@
 <p class="admonition-title">Warning</p>
 <p>MIPLearn is still in early development stage. If run into any bugs or issues, please submit a bug report in our GitHub repository. Comments, suggestions and pull requests are also very welcome!</p>
 </div>
-</section>
-<section id="Installation">
-<h2><span class="section-number">3.2. </span>Installation<a class="headerlink" href="#Installation" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Installation">
+<h2><span class="section-number">3.2. </span>Installation<a class="headerlink" href="#Installation" title="Permalink to this headline">¶</a></h2>
 <p>MIPLearn is available in two versions:</p>
 <ul class="simple">
 <li><p>Python version, compatible with the Pyomo and Gurobipy modeling languages,</p></li>
@@ -311,9 +318,9 @@
 <li><p>In the code above, we install specific version of all packages to ensure that this tutorial keeps running in the future, even when newer (and possibly incompatible) versions of the packages are released. This is usually a recommended practice for all Julia projects.</p></li>
 </ul>
 </div>
-</section>
-<section id="Modeling-a-simple-optimization-problem">
-<h2><span class="section-number">3.3. </span>Modeling a simple optimization problem<a class="headerlink" href="#Modeling-a-simple-optimization-problem" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Modeling-a-simple-optimization-problem">
+<h2><span class="section-number">3.3. </span>Modeling a simple optimization problem<a class="headerlink" href="#Modeling-a-simple-optimization-problem" title="Permalink to this headline">¶</a></h2>
 <p>To illustrate how can MIPLearn be used, we will model and solve a small optimization problem related to power systems optimization. The problem we discuss below is a simplification of the <strong>unit commitment problem,</strong> a practical optimization problem solved daily by electric grid operators around the world.</p>
 <p>Suppose that a utility company needs to decide which electrical generators should be online at each hour of the day, as well as how much power should each generator produce. More specifically, assume that the company owns <span class="math notranslate nohighlight">\(n\)</span> generators, denoted by <span class="math notranslate nohighlight">\(g_1, \ldots, g_n\)</span>. Each generator can either be online or offline. An online generator <span class="math notranslate nohighlight">\(g_i\)</span> can produce between <span class="math notranslate nohighlight">\(p^\text{min}_i\)</span> to <span class="math notranslate nohighlight">\(p^\text{max}_i\)</span> megawatts of power, and it costs the company
 <span class="math notranslate nohighlight">\(c^\text{fix}_i + c^\text{var}_i y_i\)</span>, where <span class="math notranslate nohighlight">\(y_i\)</span> is the amount of power produced. An offline generator produces nothing and costs nothing. The total amount of power to be produced needs to be exactly equal to the total demand <span class="math notranslate nohighlight">\(d\)</span> (in megawatts).</p>
@@ -447,9 +454,9 @@ Vector(value.(model.inner[:y])) = [0.0, 60.0, 40.0]
 <li><p>In the example above, <code class="docutils literal notranslate"><span class="pre">JumpModel</span></code> is just a thin wrapper around a standard JuMP model. This wrapper allows MIPLearn to be solver- and modeling-language-agnostic. The wrapper provides only a few basic methods, such as <code class="docutils literal notranslate"><span class="pre">optimize</span></code>. For more control, and to query the solution, the original JuMP model can be accessed through <code class="docutils literal notranslate"><span class="pre">model.inner</span></code>, as illustrated above.</p></li>
 </ul>
 </div>
-</section>
-<section id="Generating-training-data">
-<h2><span class="section-number">3.4. </span>Generating training data<a class="headerlink" href="#Generating-training-data" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Generating-training-data">
+<h2><span class="section-number">3.4. </span>Generating training data<a class="headerlink" href="#Generating-training-data" title="Permalink to this headline">¶</a></h2>
 <p>Although Gurobi could solve the small example above in a fraction of a second, it gets slower for larger and more complex versions of the problem. If this is a problem that needs to be solved frequently, as it is often the case in practice, it could make sense to spend some time upfront generating a <strong>trained</strong> solver, which can optimize new instances (similar to the ones it was trained on) faster.</p>
 <p>In the following, we will use MIPLearn to train machine learning models that is able to predict the optimal solution for instances that follow a given probability distribution, then it will provide this predicted solution to Gurobi as a warm start. Before we can train the model, we need to collect training data by solving a large number of instances. In real-world situations, we may construct these training instances based on historical data. In this tutorial, we will construct them using a
 random instance generator:</p>
@@ -506,9 +513,9 @@ machines. The code below generates the files <code class="docutils literal notra
 </pre></div>
 </div>
 </div>
-</section>
-<section id="Training-and-solving-test-instances">
-<h2><span class="section-number">3.5. </span>Training and solving test instances<a class="headerlink" href="#Training-and-solving-test-instances" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Training-and-solving-test-instances">
+<h2><span class="section-number">3.5. </span>Training and solving test instances<a class="headerlink" href="#Training-and-solving-test-instances" title="Permalink to this headline">¶</a></h2>
 <p>With training data in hand, we can now design and train a machine learning model to accelerate solver performance. In this tutorial, for illustration purposes, we will use ML to generate a good warm start using <span class="math notranslate nohighlight">\(k\)</span>-nearest neighbors. More specifically, the strategy is to:</p>
 <ol class="arabic simple">
 <li><p>Memorize the optimal solutions of all training instances;</p></li>
@@ -655,9 +662,9 @@ User-callback calls 204, time in user-callback 0.00 sec
 </pre></div></div>
 </div>
 <p>In the log above, the <code class="docutils literal notranslate"><span class="pre">MIP</span> <span class="pre">start</span></code> line is missing, and Gurobi had to start with a significantly inferior initial solution. The solver was still able to find the optimal solution at the end, but it required using its own internal heuristic procedures. In this example, because we solve very small optimization problems, there was almost no difference in terms of running time, but the difference can be significant for larger problems.</p>
-</section>
-<section id="Accessing-the-solution">
-<h2><span class="section-number">3.6. </span>Accessing the solution<a class="headerlink" href="#Accessing-the-solution" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Accessing-the-solution">
+<h2><span class="section-number">3.6. </span>Accessing the solution<a class="headerlink" href="#Accessing-the-solution" title="Permalink to this headline">¶</a></h2>
 <p>In the example above, we used <code class="docutils literal notranslate"><span class="pre">LearningSolver.solve</span></code> together with data files to solve both the training and the test instances. In the following example, we show how to build and solve a JuMP model entirely in-memory, using our trained solver.</p>
 <div class="nbinput docutils container">
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[10]:
@@ -718,8 +725,8 @@ User-callback calls 182, time in user-callback 0.00 sec
 objective_value(model.inner) = 9.866096485613789e9
 </pre></div></div>
 </div>
-</section>
-</section>
+</div>
+</div>
 
 
               </div>

0.4/tutorials/getting-started-pyomo.ipynb

@@ -45,16 +45,10 @@
     "- Python version, compatible with the Pyomo and Gurobipy modeling languages,\n",
     "- Julia version, compatible with the JuMP modeling language.\n",
     "\n",
-    "In this tutorial, we will demonstrate how to use and install the Python/Pyomo version of the package. The first step is to install Python 3.8+ in your computer. See the [official Python website for more instructions](https://www.python.org/downloads/). After Python is installed, we proceed to install MIPLearn using `pip`:\n",
+    "In this tutorial, we will demonstrate how to use and install the Python/Pyomo version of the package. The first step is to install Python 3.9+ in your computer. See the [official Python website for more instructions](https://www.python.org/downloads/). After Python is installed, we proceed to install MIPLearn using `pip`:\n",
     "\n",
     "```\n",
-    "$ pip install MIPLearn==0.4\n",
-    "```\n",
-    "\n",
-    "In addition to MIPLearn itself, we will also install Gurobi 10.0, a state-of-the-art commercial MILP solver. This step also install a demo license for Gurobi, which should able to solve the small optimization problems in this tutorial. A license is required for solving larger-scale problems.\n",
-    "\n",
-    "```\n",
-    "$ pip install 'gurobipy>=10,<10.1'\n",
+    "$ pip install MIPLearn~=0.4\n",
     "```"
    ]
   },

0.4/tutorials/getting-started-pyomo/index.html

@@ -1,10 +1,10 @@
+
 <!DOCTYPE html>
 
-<html lang="en" data-content_root="../../">
+<html>
   <head>
     <meta charset="utf-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
-
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>1. Getting started (Pyomo) &#8212; MIPLearn 0.4</title>
     
   <link href="../../_static/css/theme.css" rel="stylesheet" />
@@ -22,21 +22,29 @@
       
 
     
-    <link rel="stylesheet" type="text/css" href="../../_static/pygments.css?v=362ab14a" />
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-    <link rel="stylesheet" type="text/css" href="../../_static/custom.css?v=f8244a84" />
+    <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
+    <link rel="stylesheet" href="../../_static/sphinx-book-theme.acff12b8f9c144ce68a297486a2fa670.css" type="text/css" />
+    <link rel="stylesheet" type="text/css" href="../../_static/nbsphinx-code-cells.css" />
+    <link rel="stylesheet" type="text/css" href="../../_static/nbsphinx-code-cells.css" />
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+    <link rel="stylesheet" type="text/css" href="../../_static/custom.css" />
     
   <link rel="preload" as="script" href="../../_static/js/index.1c5a1a01449ed65a7b51.js">
 
-    <script src="../../_static/documentation_options.js?v=751a5dd3"></script>
-    <script src="../../_static/doctools.js?v=888ff710"></script>
-    <script src="../../_static/sphinx_highlight.js?v=dc90522c"></script>
+    <script id="documentation_options" data-url_root="../../" src="../../_static/documentation_options.js"></script>
+    <script src="../../_static/jquery.js"></script>
+    <script src="../../_static/underscore.js"></script>
+    <script src="../../_static/doctools.js"></script>
     <script crossorigin="anonymous" integrity="sha256-Ae2Vz/4ePdIu6ZyI/5ZGsYnb+m0JlOmKPjt6XZ9JJkA=" src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.3.4/require.min.js"></script>
-    <script src="../../_static/sphinx-book-theme.12a9622fbb08dcb3a2a40b2c02b83a57.js?v=7c4c3336"></script>
+    <script src="../../_static/sphinx-book-theme.12a9622fbb08dcb3a2a40b2c02b83a57.js"></script>
+    <script async="async" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/latest.js?config=TeX-AMS-MML_HTMLorMML"></script>
     <script type="text/x-mathjax-config">MathJax.Hub.Config({"tex2jax": {"inlineMath": [["\\(", "\\)"]], "displayMath": [["\\[", "\\]"]], "processRefs": false, "processEnvironments": false}})</script>
-    <script>window.MathJax = {"tex": {"inlineMath": [["$", "$"], ["\\(", "\\)"]], "processEscapes": true}, "options": {"ignoreHtmlClass": "tex2jax_ignore|mathjax_ignore|document", "processHtmlClass": "tex2jax_process|mathjax_process|math|output_area"}}</script>
-    <script defer="defer" src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>
     <link rel="index" title="Index" href="../../genindex/" />
     <link rel="search" title="Search" href="../../search/" />
     <link rel="next" title="2. Getting started (Gurobipy)" href="../getting-started-gurobipy/" />
@@ -68,7 +76,7 @@
   <input type="search" class="form-control" name="q" id="search-input" placeholder="Search the docs ..." aria-label="Search the docs ..." autocomplete="off" >
 </form><nav class="bd-links" id="bd-docs-nav" aria-label="Main navigation">
     <div class="bd-toc-item active">
-        <p class="caption" role="heading">
+        <p class="caption">
  <span class="caption-text">
   Tutorials
  </span>
@@ -95,7 +103,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   User Guide
  </span>
@@ -127,7 +135,7 @@
   </a>
  </li>
 </ul>
-<p class="caption" role="heading">
+<p class="caption">
  <span class="caption-text">
   Python API Reference
  </span>
@@ -266,10 +274,10 @@
         
               <div>
                 
-  <section id="Getting-started-(Pyomo)">
-<h1><span class="section-number">1. </span>Getting started (Pyomo)<a class="headerlink" href="#Getting-started-(Pyomo)" title="Link to this heading">¶</a></h1>
-<section id="Introduction">
-<h2><span class="section-number">1.1. </span>Introduction<a class="headerlink" href="#Introduction" title="Link to this heading">¶</a></h2>
+  <div class="section" id="Getting-started-(Pyomo)">
+<h1><span class="section-number">1. </span>Getting started (Pyomo)<a class="headerlink" href="#Getting-started-(Pyomo)" title="Permalink to this headline">¶</a></h1>
+<div class="section" id="Introduction">
+<h2><span class="section-number">1.1. </span>Introduction<a class="headerlink" href="#Introduction" title="Permalink to this headline">¶</a></h2>
 <p><strong>MIPLearn</strong> is an open source framework that uses machine learning (ML) to accelerate the performance of mixed-integer programming solvers (e.g. Gurobi, CPLEX, XPRESS). In this tutorial, we will:</p>
 <ol class="arabic simple">
 <li><p>Install the Python/Pyomo version of MIPLearn</p></li>
@@ -285,29 +293,25 @@
 <p class="admonition-title">Warning</p>
 <p>MIPLearn is still in early development stage. If run into any bugs or issues, please submit a bug report in our GitHub repository. Comments, suggestions and pull requests are also very welcome!</p>
 </div>
-</section>
-<section id="Installation">
-<h2><span class="section-number">1.2. </span>Installation<a class="headerlink" href="#Installation" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Installation">
+<h2><span class="section-number">1.2. </span>Installation<a class="headerlink" href="#Installation" title="Permalink to this headline">¶</a></h2>
 <p>MIPLearn is available in two versions:</p>
 <ul class="simple">
 <li><p>Python version, compatible with the Pyomo and Gurobipy modeling languages,</p></li>
 <li><p>Julia version, compatible with the JuMP modeling language.</p></li>
 </ul>
-<p>In this tutorial, we will demonstrate how to use and install the Python/Pyomo version of the package. The first step is to install Python 3.8+ in your computer. See the <a class="reference external" href="https://www.python.org/downloads/">official Python website for more instructions</a>. After Python is installed, we proceed to install MIPLearn using <code class="docutils literal notranslate"><span class="pre">pip</span></code>:</p>
-<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>$ pip install MIPLearn==0.4
-</pre></div>
-</div>
-<p>In addition to MIPLearn itself, we will also install Gurobi 10.0, a state-of-the-art commercial MILP solver. This step also install a demo license for Gurobi, which should able to solve the small optimization problems in this tutorial. A license is required for solving larger-scale problems.</p>
-<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>$ pip install &#39;gurobipy&gt;=10,&lt;10.1&#39;
+<p>In this tutorial, we will demonstrate how to use and install the Python/Pyomo version of the package. The first step is to install Python 3.9+ in your computer. See the <a class="reference external" href="https://www.python.org/downloads/">official Python website for more instructions</a>. After Python is installed, we proceed to install MIPLearn using <code class="docutils literal notranslate"><span class="pre">pip</span></code>:</p>
+<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>$ pip install MIPLearn~=0.4
 </pre></div>
 </div>
 <div class="admonition note">
 <p class="admonition-title">Note</p>
 <p>In the code above, we install specific version of all packages to ensure that this tutorial keeps running in the future, even when newer (and possibly incompatible) versions of the packages are released. This is usually a recommended practice for all Python projects.</p>
 </div>
-</section>
-<section id="Modeling-a-simple-optimization-problem">
-<h2><span class="section-number">1.3. </span>Modeling a simple optimization problem<a class="headerlink" href="#Modeling-a-simple-optimization-problem" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Modeling-a-simple-optimization-problem">
+<h2><span class="section-number">1.3. </span>Modeling a simple optimization problem<a class="headerlink" href="#Modeling-a-simple-optimization-problem" title="Permalink to this headline">¶</a></h2>
 <p>To illustrate how can MIPLearn be used, we will model and solve a small optimization problem related to power systems optimization. The problem we discuss below is a simplification of the <strong>unit commitment problem,</strong> a practical optimization problem solved daily by electric grid operators around the world.</p>
 <p>Suppose that a utility company needs to decide which electrical generators should be online at each hour of the day, as well as how much power should each generator produce. More specifically, assume that the company owns <span class="math notranslate nohighlight">\(n\)</span> generators, denoted by <span class="math notranslate nohighlight">\(g_1, \ldots, g_n\)</span>. Each generator can either be online or offline. An online generator <span class="math notranslate nohighlight">\(g_i\)</span> can produce between <span class="math notranslate nohighlight">\(p^\text{min}_i\)</span> to <span class="math notranslate nohighlight">\(p^\text{max}_i\)</span> megawatts of power, and it costs the company
 <span class="math notranslate nohighlight">\(c^\text{fix}_i + c^\text{var}_i y_i\)</span>, where <span class="math notranslate nohighlight">\(y_i\)</span> is the amount of power produced. An offline generator produces nothing and costs nothing. The total amount of power to be produced needs to be exactly equal to the total demand <span class="math notranslate nohighlight">\(d\)</span> (in megawatts).</p>
@@ -330,19 +334,19 @@
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[1]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">dataclasses</span> <span class="kn">import</span> <span class="n">dataclass</span>
-<span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">List</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>from dataclasses import dataclass
+from typing import List
 
-<span class="kn">import</span> <span class="nn">numpy</span> <span class="k">as</span> <span class="nn">np</span>
+import numpy as np
 
 
-<span class="nd">@dataclass</span>
-<span class="k">class</span> <span class="nc">UnitCommitmentData</span><span class="p">:</span>
-    <span class="n">demand</span><span class="p">:</span> <span class="nb">float</span>
-    <span class="n">pmin</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">float</span><span class="p">]</span>
-    <span class="n">pmax</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">float</span><span class="p">]</span>
-    <span class="n">cfix</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">float</span><span class="p">]</span>
-    <span class="n">cvar</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">float</span><span class="p">]</span>
+@dataclass
+class UnitCommitmentData:
+    demand: float
+    pmin: List[float]
+    pmax: List[float]
+    cfix: List[float]
+    cvar: List[float]
 </pre></div>
 </div>
 </div>
@@ -351,34 +355,34 @@
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[2]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">pyomo.environ</span> <span class="k">as</span> <span class="nn">pe</span>
-<span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">Union</span>
-<span class="kn">from</span> <span class="nn">miplearn.io</span> <span class="kn">import</span> <span class="n">read_pkl_gz</span>
-<span class="kn">from</span> <span class="nn">miplearn.solvers.pyomo</span> <span class="kn">import</span> <span class="n">PyomoModel</span>
-
-
-<span class="k">def</span> <span class="nf">build_uc_model</span><span class="p">(</span><span class="n">data</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">UnitCommitmentData</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="n">PyomoModel</span><span class="p">:</span>
-    <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
-        <span class="n">data</span> <span class="o">=</span> <span class="n">read_pkl_gz</span><span class="p">(</span><span class="n">data</span><span class="p">)</span>
-
-    <span class="n">model</span> <span class="o">=</span> <span class="n">pe</span><span class="o">.</span><span class="n">ConcreteModel</span><span class="p">()</span>
-    <span class="n">n</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">data</span><span class="o">.</span><span class="n">pmin</span><span class="p">)</span>
-    <span class="n">model</span><span class="o">.</span><span class="n">x</span> <span class="o">=</span> <span class="n">pe</span><span class="o">.</span><span class="n">Var</span><span class="p">(</span><span class="nb">range</span><span class="p">(</span><span class="n">n</span><span class="p">),</span> <span class="n">domain</span><span class="o">=</span><span class="n">pe</span><span class="o">.</span><span class="n">Binary</span><span class="p">)</span>
-    <span class="n">model</span><span class="o">.</span><span class="n">y</span> <span class="o">=</span> <span class="n">pe</span><span class="o">.</span><span class="n">Var</span><span class="p">(</span><span class="nb">range</span><span class="p">(</span><span class="n">n</span><span class="p">),</span> <span class="n">domain</span><span class="o">=</span><span class="n">pe</span><span class="o">.</span><span class="n">NonNegativeReals</span><span class="p">)</span>
-    <span class="n">model</span><span class="o">.</span><span class="n">obj</span> <span class="o">=</span> <span class="n">pe</span><span class="o">.</span><span class="n">Objective</span><span class="p">(</span>
-        <span class="n">expr</span><span class="o">=</span><span class="nb">sum</span><span class="p">(</span>
-            <span class="n">data</span><span class="o">.</span><span class="n">cfix</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">*</span> <span class="n">model</span><span class="o">.</span><span class="n">x</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">+</span> <span class="n">data</span><span class="o">.</span><span class="n">cvar</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">*</span> <span class="n">model</span><span class="o">.</span><span class="n">y</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">n</span><span class="p">)</span>
-        <span class="p">)</span>
-    <span class="p">)</span>
-    <span class="n">model</span><span class="o">.</span><span class="n">eq_max_power</span> <span class="o">=</span> <span class="n">pe</span><span class="o">.</span><span class="n">ConstraintList</span><span class="p">()</span>
-    <span class="n">model</span><span class="o">.</span><span class="n">eq_min_power</span> <span class="o">=</span> <span class="n">pe</span><span class="o">.</span><span class="n">ConstraintList</span><span class="p">()</span>
-    <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">n</span><span class="p">):</span>
-        <span class="n">model</span><span class="o">.</span><span class="n">eq_max_power</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">model</span><span class="o">.</span><span class="n">y</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">&lt;=</span> <span class="n">data</span><span class="o">.</span><span class="n">pmax</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">*</span> <span class="n">model</span><span class="o">.</span><span class="n">x</span><span class="p">[</span><span class="n">i</span><span class="p">])</span>
-        <span class="n">model</span><span class="o">.</span><span class="n">eq_min_power</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">model</span><span class="o">.</span><span class="n">y</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">&gt;=</span> <span class="n">data</span><span class="o">.</span><span class="n">pmin</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">*</span> <span class="n">model</span><span class="o">.</span><span class="n">x</span><span class="p">[</span><span class="n">i</span><span class="p">])</span>
-    <span class="n">model</span><span class="o">.</span><span class="n">eq_demand</span> <span class="o">=</span> <span class="n">pe</span><span class="o">.</span><span class="n">Constraint</span><span class="p">(</span>
-        <span class="n">expr</span><span class="o">=</span><span class="nb">sum</span><span class="p">(</span><span class="n">model</span><span class="o">.</span><span class="n">y</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">n</span><span class="p">))</span> <span class="o">==</span> <span class="n">data</span><span class="o">.</span><span class="n">demand</span><span class="p">,</span>
-    <span class="p">)</span>
-    <span class="k">return</span> <span class="n">PyomoModel</span><span class="p">(</span><span class="n">model</span><span class="p">,</span> <span class="s2">&quot;gurobi_persistent&quot;</span><span class="p">)</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>import pyomo.environ as pe
+from typing import Union
+from miplearn.io import read_pkl_gz
+from miplearn.solvers.pyomo import PyomoModel
+
+
+def build_uc_model(data: Union[str, UnitCommitmentData]) -&gt; PyomoModel:
+    if isinstance(data, str):
+        data = read_pkl_gz(data)
+
+    model = pe.ConcreteModel()
+    n = len(data.pmin)
+    model.x = pe.Var(range(n), domain=pe.Binary)
+    model.y = pe.Var(range(n), domain=pe.NonNegativeReals)
+    model.obj = pe.Objective(
+        expr=sum(
+            data.cfix[i] * model.x[i] + data.cvar[i] * model.y[i] for i in range(n)
+        )
+    )
+    model.eq_max_power = pe.ConstraintList()
+    model.eq_min_power = pe.ConstraintList()
+    for i in range(n):
+        model.eq_max_power.add(model.y[i] &lt;= data.pmax[i] * model.x[i])
+        model.eq_min_power.add(model.y[i] &gt;= data.pmin[i] * model.x[i])
+    model.eq_demand = pe.Constraint(
+        expr=sum(model.y[i] for i in range(n)) == data.demand,
+    )
+    return PyomoModel(model, &quot;gurobi_persistent&quot;)
 </pre></div>
 </div>
 </div>
@@ -387,20 +391,20 @@
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[3]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="n">model</span> <span class="o">=</span> <span class="n">build_uc_model</span><span class="p">(</span>
-    <span class="n">UnitCommitmentData</span><span class="p">(</span>
-        <span class="n">demand</span><span class="o">=</span><span class="mf">100.0</span><span class="p">,</span>
-        <span class="n">pmin</span><span class="o">=</span><span class="p">[</span><span class="mi">10</span><span class="p">,</span> <span class="mi">20</span><span class="p">,</span> <span class="mi">30</span><span class="p">],</span>
-        <span class="n">pmax</span><span class="o">=</span><span class="p">[</span><span class="mi">50</span><span class="p">,</span> <span class="mi">60</span><span class="p">,</span> <span class="mi">70</span><span class="p">],</span>
-        <span class="n">cfix</span><span class="o">=</span><span class="p">[</span><span class="mi">700</span><span class="p">,</span> <span class="mi">600</span><span class="p">,</span> <span class="mi">500</span><span class="p">],</span>
-        <span class="n">cvar</span><span class="o">=</span><span class="p">[</span><span class="mf">1.5</span><span class="p">,</span> <span class="mf">2.0</span><span class="p">,</span> <span class="mf">2.5</span><span class="p">],</span>
-    <span class="p">)</span>
-<span class="p">)</span>
-
-<span class="n">model</span><span class="o">.</span><span class="n">optimize</span><span class="p">()</span>
-<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;obj =&quot;</span><span class="p">,</span> <span class="n">model</span><span class="o">.</span><span class="n">inner</span><span class="o">.</span><span class="n">obj</span><span class="p">())</span>
-<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;x =&quot;</span><span class="p">,</span> <span class="p">[</span><span class="n">model</span><span class="o">.</span><span class="n">inner</span><span class="o">.</span><span class="n">x</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">.</span><span class="n">value</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">3</span><span class="p">)])</span>
-<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;y =&quot;</span><span class="p">,</span> <span class="p">[</span><span class="n">model</span><span class="o">.</span><span class="n">inner</span><span class="o">.</span><span class="n">y</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">.</span><span class="n">value</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">3</span><span class="p">)])</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>model = build_uc_model(
+    UnitCommitmentData(
+        demand=100.0,
+        pmin=[10, 20, 30],
+        pmax=[50, 60, 70],
+        cfix=[700, 600, 500],
+        cvar=[1.5, 2.0, 2.5],
+    )
+)
+
+model.optimize()
+print(&quot;obj =&quot;, model.inner.obj())
+print(&quot;x =&quot;, [model.inner.x[i].value for i in range(3)])
+print(&quot;y =&quot;, [model.inner.y[i].value for i in range(3)])
 </pre></div>
 </div>
 </div>
@@ -461,9 +465,9 @@ y = [0.0, 60.0, 40.0]
 <li><p>To use CPLEX or XPRESS, instead of Gurobi, replace <code class="docutils literal notranslate"><span class="pre">gurobi_persistent</span></code> by <code class="docutils literal notranslate"><span class="pre">cplex_persistent</span></code> or <code class="docutils literal notranslate"><span class="pre">xpress_persistent</span></code> in the <code class="docutils literal notranslate"><span class="pre">build_uc_model</span></code>. Note that only persistent Pyomo solvers are currently supported. Pull requests adding support for other types of solver are very welcome.</p></li>
 </ul>
 </div>
-</section>
-<section id="Generating-training-data">
-<h2><span class="section-number">1.4. </span>Generating training data<a class="headerlink" href="#Generating-training-data" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Generating-training-data">
+<h2><span class="section-number">1.4. </span>Generating training data<a class="headerlink" href="#Generating-training-data" title="Permalink to this headline">¶</a></h2>
 <p>Although Gurobi could solve the small example above in a fraction of a second, it gets slower for larger and more complex versions of the problem. If this is a problem that needs to be solved frequently, as it is often the case in practice, it could make sense to spend some time upfront generating a <strong>trained</strong> solver, which can optimize new instances (similar to the ones it was trained on) faster.</p>
 <p>In the following, we will use MIPLearn to train machine learning models that is able to predict the optimal solution for instances that follow a given probability distribution, then it will provide this predicted solution to Gurobi as a warm start. Before we can train the model, we need to collect training data by solving a large number of instances. In real-world situations, we may construct these training instances based on historical data. In this tutorial, we will construct them using a
 random instance generator:</p>
@@ -471,28 +475,28 @@ random instance generator:</p>
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[4]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">scipy.stats</span> <span class="kn">import</span> <span class="n">uniform</span>
-<span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">List</span>
-<span class="kn">import</span> <span class="nn">random</span>
-
-
-<span class="k">def</span> <span class="nf">random_uc_data</span><span class="p">(</span><span class="n">samples</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">n</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">seed</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">42</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">List</span><span class="p">[</span><span class="n">UnitCommitmentData</span><span class="p">]:</span>
-    <span class="n">random</span><span class="o">.</span><span class="n">seed</span><span class="p">(</span><span class="n">seed</span><span class="p">)</span>
-    <span class="n">np</span><span class="o">.</span><span class="n">random</span><span class="o">.</span><span class="n">seed</span><span class="p">(</span><span class="n">seed</span><span class="p">)</span>
-    <span class="n">pmin</span> <span class="o">=</span> <span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">100_000.0</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">400_000.0</span><span class="p">)</span><span class="o">.</span><span class="n">rvs</span><span class="p">(</span><span class="n">n</span><span class="p">)</span>
-    <span class="n">pmax</span> <span class="o">=</span> <span class="n">pmin</span> <span class="o">*</span> <span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">2.0</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">2.5</span><span class="p">)</span><span class="o">.</span><span class="n">rvs</span><span class="p">(</span><span class="n">n</span><span class="p">)</span>
-    <span class="n">cfix</span> <span class="o">=</span> <span class="n">pmin</span> <span class="o">*</span> <span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">100.0</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">25.0</span><span class="p">)</span><span class="o">.</span><span class="n">rvs</span><span class="p">(</span><span class="n">n</span><span class="p">)</span>
-    <span class="n">cvar</span> <span class="o">=</span> <span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">1.25</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">0.25</span><span class="p">)</span><span class="o">.</span><span class="n">rvs</span><span class="p">(</span><span class="n">n</span><span class="p">)</span>
-    <span class="k">return</span> <span class="p">[</span>
-        <span class="n">UnitCommitmentData</span><span class="p">(</span>
-            <span class="n">demand</span><span class="o">=</span><span class="n">pmax</span><span class="o">.</span><span class="n">sum</span><span class="p">()</span> <span class="o">*</span> <span class="n">uniform</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="mf">0.5</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="mf">0.25</span><span class="p">)</span><span class="o">.</span><span class="n">rvs</span><span class="p">(),</span>
-            <span class="n">pmin</span><span class="o">=</span><span class="n">pmin</span><span class="p">,</span>
-            <span class="n">pmax</span><span class="o">=</span><span class="n">pmax</span><span class="p">,</span>
-            <span class="n">cfix</span><span class="o">=</span><span class="n">cfix</span><span class="p">,</span>
-            <span class="n">cvar</span><span class="o">=</span><span class="n">cvar</span><span class="p">,</span>
-        <span class="p">)</span>
-        <span class="k">for</span> <span class="n">_</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">samples</span><span class="p">)</span>
-    <span class="p">]</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>from scipy.stats import uniform
+from typing import List
+import random
+
+
+def random_uc_data(samples: int, n: int, seed: int = 42) -&gt; List[UnitCommitmentData]:
+    random.seed(seed)
+    np.random.seed(seed)
+    pmin = uniform(loc=100_000.0, scale=400_000.0).rvs(n)
+    pmax = pmin * uniform(loc=2.0, scale=2.5).rvs(n)
+    cfix = pmin * uniform(loc=100.0, scale=25.0).rvs(n)
+    cvar = uniform(loc=1.25, scale=0.25).rvs(n)
+    return [
+        UnitCommitmentData(
+            demand=pmax.sum() * uniform(loc=0.5, scale=0.25).rvs(),
+            pmin=pmin,
+            pmax=pmax,
+            cfix=cfix,
+            cvar=cvar,
+        )
+        for _ in range(samples)
+    ]
 </pre></div>
 </div>
 </div>
@@ -503,11 +507,11 @@ machines. The code below generates the files <code class="docutils literal notra
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[5]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">miplearn.io</span> <span class="kn">import</span> <span class="n">write_pkl_gz</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>from miplearn.io import write_pkl_gz
 
-<span class="n">data</span> <span class="o">=</span> <span class="n">random_uc_data</span><span class="p">(</span><span class="n">samples</span><span class="o">=</span><span class="mi">500</span><span class="p">,</span> <span class="n">n</span><span class="o">=</span><span class="mi">500</span><span class="p">)</span>
-<span class="n">train_data</span> <span class="o">=</span> <span class="n">write_pkl_gz</span><span class="p">(</span><span class="n">data</span><span class="p">[</span><span class="mi">0</span><span class="p">:</span><span class="mi">450</span><span class="p">],</span> <span class="s2">&quot;uc/train&quot;</span><span class="p">)</span>
-<span class="n">test_data</span> <span class="o">=</span> <span class="n">write_pkl_gz</span><span class="p">(</span><span class="n">data</span><span class="p">[</span><span class="mi">450</span><span class="p">:</span><span class="mi">500</span><span class="p">],</span> <span class="s2">&quot;uc/test&quot;</span><span class="p">)</span>
+data = random_uc_data(samples=500, n=500)
+train_data = write_pkl_gz(data[0:450], &quot;uc/train&quot;)
+test_data = write_pkl_gz(data[450:500], &quot;uc/test&quot;)
 </pre></div>
 </div>
 </div>
@@ -516,16 +520,16 @@ machines. The code below generates the files <code class="docutils literal notra
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[6]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">miplearn.collectors.basic</span> <span class="kn">import</span> <span class="n">BasicCollector</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>from miplearn.collectors.basic import BasicCollector
 
-<span class="n">bc</span> <span class="o">=</span> <span class="n">BasicCollector</span><span class="p">()</span>
-<span class="n">bc</span><span class="o">.</span><span class="n">collect</span><span class="p">(</span><span class="n">train_data</span><span class="p">,</span> <span class="n">build_uc_model</span><span class="p">,</span> <span class="n">n_jobs</span><span class="o">=</span><span class="mi">4</span><span class="p">)</span>
+bc = BasicCollector()
+bc.collect(train_data, build_uc_model, n_jobs=4)
 </pre></div>
 </div>
 </div>
-</section>
-<section id="Training-and-solving-test-instances">
-<h2><span class="section-number">1.5. </span>Training and solving test instances<a class="headerlink" href="#Training-and-solving-test-instances" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Training-and-solving-test-instances">
+<h2><span class="section-number">1.5. </span>Training and solving test instances<a class="headerlink" href="#Training-and-solving-test-instances" title="Permalink to this headline">¶</a></h2>
 <p>With training data in hand, we can now design and train a machine learning model to accelerate solver performance. In this tutorial, for illustration purposes, we will use ML to generate a good warm start using <span class="math notranslate nohighlight">\(k\)</span>-nearest neighbors. More specifically, the strategy is to:</p>
 <ol class="arabic simple">
 <li><p>Memorize the optimal solutions of all training instances;</p></li>
@@ -538,22 +542,22 @@ machines. The code below generates the files <code class="docutils literal notra
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[7]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">sklearn.neighbors</span> <span class="kn">import</span> <span class="n">KNeighborsClassifier</span>
-<span class="kn">from</span> <span class="nn">miplearn.components.primal.actions</span> <span class="kn">import</span> <span class="n">SetWarmStart</span>
-<span class="kn">from</span> <span class="nn">miplearn.components.primal.mem</span> <span class="kn">import</span> <span class="p">(</span>
-    <span class="n">MemorizingPrimalComponent</span><span class="p">,</span>
-    <span class="n">MergeTopSolutions</span><span class="p">,</span>
-<span class="p">)</span>
-<span class="kn">from</span> <span class="nn">miplearn.extractors.fields</span> <span class="kn">import</span> <span class="n">H5FieldsExtractor</span>
-
-<span class="n">comp</span> <span class="o">=</span> <span class="n">MemorizingPrimalComponent</span><span class="p">(</span>
-    <span class="n">clf</span><span class="o">=</span><span class="n">KNeighborsClassifier</span><span class="p">(</span><span class="n">n_neighbors</span><span class="o">=</span><span class="mi">25</span><span class="p">),</span>
-    <span class="n">extractor</span><span class="o">=</span><span class="n">H5FieldsExtractor</span><span class="p">(</span>
-        <span class="n">instance_fields</span><span class="o">=</span><span class="p">[</span><span class="s2">&quot;static_constr_rhs&quot;</span><span class="p">],</span>
-    <span class="p">),</span>
-    <span class="n">constructor</span><span class="o">=</span><span class="n">MergeTopSolutions</span><span class="p">(</span><span class="mi">25</span><span class="p">,</span> <span class="p">[</span><span class="mf">0.0</span><span class="p">,</span> <span class="mf">1.0</span><span class="p">]),</span>
-    <span class="n">action</span><span class="o">=</span><span class="n">SetWarmStart</span><span class="p">(),</span>
-<span class="p">)</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>from sklearn.neighbors import KNeighborsClassifier
+from miplearn.components.primal.actions import SetWarmStart
+from miplearn.components.primal.mem import (
+    MemorizingPrimalComponent,
+    MergeTopSolutions,
+)
+from miplearn.extractors.fields import H5FieldsExtractor
+
+comp = MemorizingPrimalComponent(
+    clf=KNeighborsClassifier(n_neighbors=25),
+    extractor=H5FieldsExtractor(
+        instance_fields=[&quot;static_constr_rhs&quot;],
+    ),
+    constructor=MergeTopSolutions(25, [0.0, 1.0]),
+    action=SetWarmStart(),
+)
 </pre></div>
 </div>
 </div>
@@ -562,11 +566,11 @@ machines. The code below generates the files <code class="docutils literal notra
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[8]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">miplearn.solvers.learning</span> <span class="kn">import</span> <span class="n">LearningSolver</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>from miplearn.solvers.learning import LearningSolver
 
-<span class="n">solver_ml</span> <span class="o">=</span> <span class="n">LearningSolver</span><span class="p">(</span><span class="n">components</span><span class="o">=</span><span class="p">[</span><span class="n">comp</span><span class="p">])</span>
-<span class="n">solver_ml</span><span class="o">.</span><span class="n">fit</span><span class="p">(</span><span class="n">train_data</span><span class="p">)</span>
-<span class="n">solver_ml</span><span class="o">.</span><span class="n">optimize</span><span class="p">(</span><span class="n">test_data</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">build_uc_model</span><span class="p">)</span>
+solver_ml = LearningSolver(components=[comp])
+solver_ml.fit(train_data)
+solver_ml.optimize(test_data[0], build_uc_model)
 </pre></div>
 </div>
 </div>
@@ -660,9 +664,9 @@ WARNING: Cannot get duals for MIP.
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[9]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="n">solver_baseline</span> <span class="o">=</span> <span class="n">LearningSolver</span><span class="p">(</span><span class="n">components</span><span class="o">=</span><span class="p">[])</span>
-<span class="n">solver_baseline</span><span class="o">.</span><span class="n">fit</span><span class="p">(</span><span class="n">train_data</span><span class="p">)</span>
-<span class="n">solver_baseline</span><span class="o">.</span><span class="n">optimize</span><span class="p">(</span><span class="n">test_data</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">build_uc_model</span><span class="p">)</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>solver_baseline = LearningSolver(components=[])
+solver_baseline.fit(train_data)
+solver_baseline.optimize(test_data[0], build_uc_model)
 </pre></div>
 </div>
 </div>
@@ -757,20 +761,20 @@ WARNING: Cannot get duals for MIP.
 </pre></div></div>
 </div>
 <p>In the log above, the <code class="docutils literal notranslate"><span class="pre">MIP</span> <span class="pre">start</span></code> line is missing, and Gurobi had to start with a significantly inferior initial solution. The solver was still able to find the optimal solution at the end, but it required using its own internal heuristic procedures. In this example, because we solve very small optimization problems, there was almost no difference in terms of running time, but the difference can be significant for larger problems.</p>
-</section>
-<section id="Accessing-the-solution">
-<h2><span class="section-number">1.6. </span>Accessing the solution<a class="headerlink" href="#Accessing-the-solution" title="Link to this heading">¶</a></h2>
+</div>
+<div class="section" id="Accessing-the-solution">
+<h2><span class="section-number">1.6. </span>Accessing the solution<a class="headerlink" href="#Accessing-the-solution" title="Permalink to this headline">¶</a></h2>
 <p>In the example above, we used <code class="docutils literal notranslate"><span class="pre">LearningSolver.solve</span></code> together with data files to solve both the training and the test instances. In the following example, we show how to build and solve a Pyomo model entirely in-memory, using our trained solver.</p>
 <div class="nbinput docutils container">
 <div class="prompt highlight-none notranslate"><div class="highlight"><pre><span></span>[10]:
 </pre></div>
 </div>
-<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="n">data</span> <span class="o">=</span> <span class="n">random_uc_data</span><span class="p">(</span><span class="n">samples</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">n</span><span class="o">=</span><span class="mi">500</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
-<span class="n">model</span> <span class="o">=</span> <span class="n">build_uc_model</span><span class="p">(</span><span class="n">data</span><span class="p">)</span>
-<span class="n">solver_ml</span><span class="o">.</span><span class="n">optimize</span><span class="p">(</span><span class="n">model</span><span class="p">)</span>
-<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;obj =&quot;</span><span class="p">,</span> <span class="n">model</span><span class="o">.</span><span class="n">inner</span><span class="o">.</span><span class="n">obj</span><span class="p">())</span>
-<span class="nb">print</span><span class="p">(</span><span class="s2">&quot; x =&quot;</span><span class="p">,</span> <span class="p">[</span><span class="n">model</span><span class="o">.</span><span class="n">inner</span><span class="o">.</span><span class="n">x</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">.</span><span class="n">value</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">5</span><span class="p">)])</span>
-<span class="nb">print</span><span class="p">(</span><span class="s2">&quot; y =&quot;</span><span class="p">,</span> <span class="p">[</span><span class="n">model</span><span class="o">.</span><span class="n">inner</span><span class="o">.</span><span class="n">y</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">.</span><span class="n">value</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">5</span><span class="p">)])</span>
+<div class="input_area highlight-ipython3 notranslate"><div class="highlight"><pre><span></span>data = random_uc_data(samples=1, n=500)[0]
+model = build_uc_model(data)
+solver_ml.optimize(model)
+print(&quot;obj =&quot;, model.inner.obj())
+print(&quot; x =&quot;, [model.inner.x[i].value for i in range(5)])
+print(&quot; y =&quot;, [model.inner.y[i].value for i in range(5)])
 </pre></div>
 </div>
 </div>
@@ -872,8 +876,8 @@ obj = 8254590409.96973
 </pre></div>
 </div>
 </div>
-</section>
-</section>
+</div>
+</div>
 
 
               </div>