Improved lower bounds for the Split Delivery Vehicle Routing Problem

被引:34
|
作者
Moreno, Lorenza [1 ]
de Aragao, Marcus Poggi [1 ]
Uchoa, Eduardo [2 ]
机构
[1] PUC Rio, Dept Informat, Porto Alegre, RS, Brazil
[2] Univ Fed Fluminense, Dept Prod Engn, BR-24220000 Niteroi, RJ, Brazil
关键词
Split Delivery; Extended formulation; Column generation; Cutting-plane algorithm; CUT-AND-PRICE; ALGORITHMS;
D O I
10.1016/j.orl.2010.04.008
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
This paper presents an algorithm to obtain lower bounds for the Split Delivery Vehicle Routing Problem. An extended formulation over a large set of variables is provided and valid inequalities are identified. The algorithm combined column and cut generation and improved the best known lower bounds for all instances from the literature. Some reasonably sized instances are solved to optimality for the first time. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:302 / 306
页数:5
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