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Author:

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

Indexed by:

EI Scopus SCIE

Abstract:

We consider the robust alpha fault-tolerant facility location problem (alpha-RFLP), recently introduced by Chechik and Peleg (2010) [6]. We present an improved approximation algorithm with ratio 5.236 for the 1-RFLP comparing to 6.5 by Chechik and Peleg's. For the general alpha-RFLP (fixed alpha >= 2), the same algorithm with a different subroutine tailored for alpha >= 2 provides an improved approximation ratio 1.005 + 6.015 alpha comparing to 1.5 + 7.5 alpha by Chechik and Peleg's. The key component of our algorithm is the resolution of an auxiliary facility location problem (FLP) by a variant of the LP-rounding technique of Byrka and Aardal (2010) [2] to estimate the total weighted facility open cost and shipping cost. (C) 2012 Elsevier B.V. All rights reserved.

Keyword:

Facility location Approximation algorithm Fault tolerance

Author Community:

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

Reprint Author's Address:

  • 徐大川

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

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Source :

INFORMATION PROCESSING LETTERS

ISSN: 0020-0190

Year: 2012

Issue: 10

Volume: 112

Page: 361-364

0 . 5 0 0

JCR@2022

ESI Discipline: COMPUTER SCIENCE;

JCR Journal Grade:4

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 5

SCOPUS Cited Count: 5

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 7

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