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A new separation algorithm for the Boolean quadric and cut polytopes

机译:布尔二次曲面和切多边形的新分离算法

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摘要

A separation algorithm is a procedure for generating cutting planes. Up to now, only a few polynomial-time separation algorithms were known for the Boolean quadric and cut polytopes. These polytopes arise in connection with zero-one quadratic programming and the max-cut problem, respectively. We present a new algorithm, which separates over a class of valid inequalities that includes all odd bicycle wheel inequalities and (2p + 1, 2)- circulant inequalities. It exploits, in a non-trivial way, three known results in the literature: one on the separation of {0, 1/2 }-cuts, one on the symmetries of the polytopes in question, and one on an affine mapping between the polytopes.
机译:分离算法是生成切割平面的过程。到目前为止,对于布尔二次曲面和割多边形,只有少数多项式时间分离算法是已知的。这些多面体分别与零一二次编程和最大割问题有关。我们提出了一种新的算法,该算法将一类有效不等式分离开,该有效不等式包括所有奇数自行车车轮不等式和(2p + 1,2)-循环不等式。它以非平凡的方式利用了文献中的三个已知结果:一个关于{0,1/2}切口的分离,一个关于所讨论的多位构形的对称性,另一个关于两个多义词之间的仿射映射。多表位。

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