n-Fold integer programming in cubic time
n-Fold integer programming in cubic time
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三次整数规划
DOI:
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发表时间:
2011
影响因子:
2.7
通讯作者:
Lyubov Romanchuk
中科院分区:
文献类型:
--
作者:
R. Hemmecke;S. Onn;Lyubov Romanchuk
n-Fold integer programming is a fundamental problem with a variety of natural applications in operations research and statistics. Moreover, it is universal and provides a new, variable-dimension, parametrization of all of integer programming. The fastest algorithm for n-fold integer programming predating the present article runs in time documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$${O left(n^{g(A)}L
ight)}$$end{document} with L the binary length of the numerical part of the input and g(A) the so-called Graver complexity of the bimatrix A defining the system. In this article we provide a drastic improvement and establish an algorithm which runs in time O (n3L) having cubic dependency on n regardless of the bimatrix A. Our algorithm works for separable convex piecewise affine objectives as well. Moreover, it can be used to define a hierarchy of approximations for any integer programming problem.
影响因子:
0.8
作者:
J. De Loera;R. Hemmecke;Shmul Onn;U. G. Rothblum;R. Weismantel
通讯作者:
R. Weismantel