DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jung, Hyunwoo | ko |
dc.contributor.author | Hasan, Mohammad Khairul | ko |
dc.contributor.author | Chwa, Kyung Yong | ko |
dc.date.accessioned | 2013-03-08T15:06:43Z | - |
dc.date.available | 2013-03-08T15:06:43Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2009 | - |
dc.identifier.citation | JOURNAL OF COMBINATORIAL OPTIMIZATION, v.18, no.3, pp.258 - 271 | - |
dc.identifier.issn | 1382-6905 | - |
dc.identifier.uri | http://hdl.handle.net/10203/93356 | - |
dc.description.abstract | In the connected facility location (ConFL) problem, we are given a graph G = (V, E) with nonnegative edge cost c(e) on the edges, a set of facilities F subset of V, a set of demands (i.e., clients) D subset of V, and a parameter M >= 1. Each facility i has a nonnegative opening cost f(i) and each client j has d(j) units of demand. Our objective is to open some facilities, say F. F, assign each demand j to some open facility i(j) is an element of F and connect all open facilities using a Steiner tree T such that the total cost, which is Sigma(i is an element of F) f(i) + Sigma(j is an element of D) d(j) c(i) ((j)) (j) + M Sigma(e is an element of T) c(e), is minimized. We present a primal-dual 6.55-approximation algorithm for the ConFL problem which improves the previous primal-dual 8.55-approximation algorithm given by Swamy and Kumar (Algorithmica 40:245-269, 2004). | - |
dc.language | English | - |
dc.publisher | Springer | - |
dc.title | A 6.55 factor primal-dual approximation algorithm for the connected facility location problem | - |
dc.type | Article | - |
dc.identifier.wosid | 000270634500003 | - |
dc.identifier.scopusid | 2-s2.0-70349873450 | - |
dc.type.rims | ART | - |
dc.citation.volume | 18 | - |
dc.citation.issue | 3 | - |
dc.citation.beginningpage | 258 | - |
dc.citation.endingpage | 271 | - |
dc.citation.publicationname | JOURNAL OF COMBINATORIAL OPTIMIZATION | - |
dc.identifier.doi | 10.1007/s10878-009-9227-8 | - |
dc.contributor.localauthor | Chwa, Kyung Yong | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Approximation algorithms | - |
dc.subject.keywordAuthor | Primal-dual algorithms | - |
dc.subject.keywordAuthor | Facility location problems | - |
dc.subject.keywordAuthor | Greedy algorithm | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.