A note on reducing the number of variables in Integer Programming problems

被引:6
作者
Zhu, N
Broughan, K
机构
[1] Department of Mathematics, University of Waikato, Hamilton
关键词
integer programming; knapsack problem; dominated columns; integer variables;
D O I
10.1023/A:1008675522511
中图分类号
C93 [管理学]; O22 [运筹学];
学科分类号
070105 ; 12 ; 1201 ; 1202 ; 120202 ;
摘要
A necessary and sufficient condition for identification of dominated columns, which correspond to one type of redundant integer variables, in the matrix of a general Integer Programming problem, is derived. The given condition extends our recent work on eliminating dominated integer variables in Knapsack problems, and revises a recently published procedure for reducing the number of variables in general Integer Programming problems given in the literature. A report on computational experiments for one class of large scale Knapsack problems, illustrating the function of this approach, is included.
引用
收藏
页码:263 / 272
页数:10
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