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Author:

Xu, Dachuan (Xu, Dachuan.) (Scholars:徐大川) | Wang, Fengmin (Wang, Fengmin.) | Du, Donglei (Du, Donglei.) | Wu, Chenchen (Wu, Chenchen.)

Indexed by:

Scopus SCIE

Abstract:

The notion of penalty has been introduced into many combinatorial optimization models. In this paper, we consider the submodular vertex cover problems with linear and submodular penalties, which are two variants of the submodular vertex cover problem where not all the edges are required to be covered by a vertex cover, and the uncovered edges are penalized. The problem is to determine a vertex subset to cover some edges and penalize the uncovered edges such that the total cost including covering and penalty is minimized. To overcome the difficulty of implementing the primal-dual framework directly, we relax the two dual programs to slightly weaker versions. We then present two primal dual approximation algorithms with approximation ratios of 2 and 4, respectively. (C) 2016 Elsevier B.V. All rights reserved.

Keyword:

Primal-dual Submodular Vertex cover Penalty Approximation algorithm

Author Community:

  • [ 1 ] [Xu, Dachuan]Beijing Univ Technol, Coll Appl Sci, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 2 ] [Wang, Fengmin]Beijing Univ Technol, Coll Appl Sci, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 3 ] [Du, Donglei]Univ New Brunswick, Fac Business Adm, POB 4400, Fredericton, NB E3B 5A3, Canada
  • [ 4 ] [Wu, Chenchen]Tianjin Univ Technol, Coll Sci, Tianjin 300384, Peoples R China

Reprint Author's Address:

  • 徐大川

    [Xu, Dachuan]Beijing Univ Technol, Coll Appl Sci, 100 Pingleyuan, Beijing 100124, Peoples R China

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Source :

THEORETICAL COMPUTER SCIENCE

ISSN: 0304-3975

Year: 2016

Volume: 630

Page: 117-125

1 . 1 0 0

JCR@2022

ESI Discipline: COMPUTER SCIENCE;

ESI HC Threshold:167

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 17

SCOPUS Cited Count: 19

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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