Scanning integer points with lex-inequalities: A finite cutting plane algorithm for integer programming with linear objective
Optimization and Control
2020-07-29 v2
Abstract
We consider the integer points in a unimodular cone K ordered by a lexicographic rule defined by a lattice basis. To each integer point x in K we associate a family of inequalities (lex-cuts) that defines the convex hull of the integer points in K that are not lexicographically smaller than x. The family of lex-cuts contains the Chvatal-Gomory cuts, but does not contain and is not contained in the family of split cuts. This provides a finite cutting plane method to solve the integer program min{cx : x \in S \cap Z^n }, where S \subset R^n is a compact set and c \in Z^n . We analyze the number of iterations of our algorithm.
Cite
@article{arxiv.1811.02345,
title = {Scanning integer points with lex-inequalities: A finite cutting plane algorithm for integer programming with linear objective},
author = {Michele Conforti and Marianna De Santis and Marco Di Summa and Francesco Rinaldi},
journal= {arXiv preprint arXiv:1811.02345},
year = {2020}
}
Comments
16 pages, 1 figure