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Valid inequalities for the multi-dimensional multiple-choice 0-1 knapsack problem

机译:多维多项选择0-1背包问题的有效不等式

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This paper presents a study of the polytope defined by the minimizing form of the binary knapsack inequality, which is a greater-than-or-equal-to constraint, augmented by disjoint generalized upper bound constraints. A set of valid inequalities, called a-cover inequalities, is characterized and dominance relationships among them are established. Both sequential and sequence-independent lifting procedures are presented to tighten an a-cover inequality that is not facet defining. Computational results aimed at evaluating the strength of the non-dominated, sequentially, and sequence-independent lifted a-cover inequalities are provided. (C) 2015 Elsevier B.V. All rights reserved.
机译:本文介绍了由二元背包不等式的最小形式定义的多面体的研究,二元背包不等式是一个大于或等于约束,并由不相交的广义上限约束所增强。表征了一组有效不等式,称为a-覆盖不等式,并在它们之间建立了优势关系。提出了顺序的和顺序无关的举升程序,以收紧未明确定义的a-cover不等式。提供了旨在评估非支配,顺序且与序列无关的提升a-cover不等式强度的计算结果。 (C)2015 Elsevier B.V.保留所有权利。

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