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27 lines
780 B
27 lines
780 B
# MIPLearn: Extensible Framework for Learning-Enhanced Mixed-Integer Optimization
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# Copyright (C) 2020, UChicago Argonne, LLC. All rights reserved.
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# Released under the modified BSD license. See COPYING.md for more details.
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from typing import TYPE_CHECKING
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from miplearn.types import ModelFeatures
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if TYPE_CHECKING:
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from miplearn import InternalSolver
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class ModelFeaturesExtractor:
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def __init__(
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self,
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internal_solver: "InternalSolver",
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) -> None:
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self.internal_solver = internal_solver
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def extract(self) -> ModelFeatures:
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rhs = {}
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for cid in self.internal_solver.get_constraint_ids():
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rhs[cid] = self.internal_solver.get_constraint_rhs(cid)
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return {
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"ConstraintRHS": rhs,
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}
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