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作者:

Li, Yu (Li, Yu.) | Du, Donglei (Du, Donglei.) | Xiu, Naihua (Xiu, Naihua.) | Xu, Dachuan (Xu, Dachuan.) (学者:徐大川)

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摘要:

We consider the facility location problem with submodular penalties (FLPSP) and the facility location problem with linear penalties (FLPLP), two extensions of the classical facility location problem (FLP). First, we introduce a general algorithmic framework for a class of covering problems with submodular penalties, extending the recent result of Geunes et al. (Math Program 130:85-106, 2011) with linear penalties. This framework leverages existing approximation results for the original covering problems to obtain corresponding results for their counterparts with submodular penalties. Specifically, any LP-based -approximation for the original covering problem can be leveraged to obtain an -approximation algorithm for the counterpart with submodular penalties. Consequently, any LP-based approximation algorithm for the classical FLP (as a covering problem) can yield, via this framework, an approximation algorithm for the counterpart with submodular penalties. Second, by exploiting some special properties of submodular/linear penalty function, we present an LP rounding algorithm which has the currently best -approximation ratio over the previously best by Li et al. (Theoret Comput Sci 476:109-117, 2013) for the FLPSP and another LP-rounding algorithm which has the currently best -approximation ratio over the previously best by Xu and Xu (J Comb Optim 17:424-436, 2008) for the FLPLP, respectively.

关键词:

Approximation algorithm Facility location problem LP rounding Submodular function

作者机构:

  • [ 1 ] [Li, Yu]Beijing Jiaotong Univ, Sch Sci, Dept Math, Beijing 100044, Peoples R China
  • [ 2 ] [Xiu, Naihua]Beijing Jiaotong Univ, Sch Sci, Dept Math, Beijing 100044, Peoples R China
  • [ 3 ] [Du, Donglei]Univ New Brunswick, Fac Business Adm, Fredericton, NB E3B 5A3, Canada
  • [ 4 ] [Xu, Dachuan]Beijing Univ Technol, Dept Appl Math, Beijing 100124, Peoples R China

通讯作者信息:

  • 徐大川

    [Xu, Dachuan]Beijing Univ Technol, Dept Appl Math, 100 Pingleyuan, Beijing 100124, Peoples R China

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来源 :

ALGORITHMICA

ISSN: 0178-4617

年份: 2015

期: 2

卷: 73

页码: 460-482

1 . 1 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:114

JCR分区:3

中科院分区:4

被引次数:

WoS核心集被引频次: 40

SCOPUS被引频次: 45

ESI高被引论文在榜: 0 展开所有

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