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COCOA
2008
Springer
13 years 7 months ago
Improved Primal-Dual Approximation Algorithm for the Connected Facility Location Problem
In the Connected Facility Location(ConFL) problem, we are given a graph G = (V, E) with nonnegative edge cost ce on the edges, a set of facilities F V , a set of demands, i.e., cl...
Hyunwoo Jung, Mohammad Khairul Hasan, Kyung-Yong C...
ALGORITHMICA
2004
103views more  ALGORITHMICA 2004»
13 years 5 months ago
Primal-Dual Algorithms for Connected Facility Location Problems
We consider the Connected Facility Location problem. We are given a graph G = (V, E) with costs {ce} on the edges, a set of facilities F V , and a set of clients D V . Facility ...
Chaitanya Swamy, Amit Kumar
IPCO
2001
166views Optimization» more  IPCO 2001»
13 years 6 months ago
Approximate k-MSTs and k-Steiner Trees via the Primal-Dual Method and Lagrangean Relaxation
Garg [10] gives two approximation algorithms for the minimum-cost tree spanning k vertices in an undirected graph. Recently Jain and Vazirani [16] discovered primal-dual approxima...
Fabián A. Chudak, Tim Roughgarden, David P....
SODA
2008
ACM
131views Algorithms» more  SODA 2008»
13 years 6 months ago
Approximating connected facility location problems via random facility sampling and core detouring
We present a simple randomized algorithmic framework for connected facility location problems. The basic idea is as follows: We run a black-box approximation algorithm for the unc...
Friedrich Eisenbrand, Fabrizio Grandoni, Thomas Ro...
COCOA
2007
Springer
13 years 7 months ago
Improved Approximation Algorithm for Connected Facility Location Problems
Mohammad Khairul Hasan, Hyunwoo Jung, Kyung-Yong C...