Approximation algorithms for the fault-tolerant facility location problem with penalties

被引：1
|
作者：
Ji, Sai [1 ]
Xu, Dachuan [1 ]
Du, Donglei [2 ]
Wu, Chenchen [3 ]
机构：
[1] Beijing Univ Technol, Coll Appl Math, Dept Informat & Operat Res, Beijing, Peoples R China
[2] Univ New Brunswick, Fac Business Adm, Fredericton, NB, Canada
[3] Tianjin Univ Technol, Coll Sci, Tianjin, Peoples R China
来源：
DISCRETE APPLIED MATHEMATICS | 2019年 / 264卷
基金：
中国国家自然科学基金;
关键词：
Approximation algorithm; Fault-tolerant; Facility location problem; Penalty;
D O I：
10.1016/j.dam.2019.01.003
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
We study the fault-tolerant facility location problem with penalties (FTFLPWP). We present an LP-rounding 4-approximation algorithm. Then we apply the randomized rounding technique to improve the approximation to 3.16, which is further improved to 2.408 by the greedy augmentation technique. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页码：62 / 75
页数：14
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