Facet separation for disjunctive constraints with network flow representation
提出一种新算法,用于分离具有特殊结构析取约束的凸包刻面诱导不等式,要求多面体并集具有网络流表示,并通过基准问题验证有效性。
Abstract We present a novel algorithm for separating facet-inducing inequalities for the convex-hull of the union of polytopes representing a disjunctive constraint of special structure. It is required that the union of polytopes admit a certain network flow representation. The algorithm is based on a new, graph theoretic characterization of the facets of the convex-hull. Moreover, we characterize the family of polytopes that are representable by the networks under consideration. We demonstrate the effectiveness of our approach by computational results on a set of benchmark problems.