Combinatorial approximation algorithms for the robust facility location problem with penalties

被引：0
|
作者：
Fengmin Wang
Dachuan Xu
Chenchen Wu
机构：
[1] Beijing University of Technology,Department of Information and Operations Research
[2] Tianjin University of Technology,College of Science
来源：
Journal of Global Optimization | 2016年 / 64卷
关键词：
Facility location problem; Approximation algorithm ; Primal–dual; Greedy augmentation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this paper, we consider the robust facility location problem with penalties, aiming to serve only a specified fraction of the clients. We formulate this problem as an integer linear program to identify which clients must be served. Based on the corresponding LP relaxation and dual program, we propose a primal–dual (combinatorial) 3-approximation algorithm. Combining the greedy augmentation procedure, we further improve the above approximation ratio to 2.
引用
收藏
页码：483 / 496
页数：13
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