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» An s -Hamiltonian Line Graph Problem
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102
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COCOA
2008
Springer
15 years 5 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...
APPML
2006
73views more  APPML 2006»
15 years 3 months ago
Threshold arrangements and the knapsack problem
We show that a combinatorial question which has been studied in connection with lower bounds for the knapsack problem by Brimkov and Dantchev (2001) is related to threshold graphs...
Günter Rote, André Schulz
IANDC
2008
213views more  IANDC 2008»
15 years 3 months ago
Decision problem for shuffled genes
We consider a permutation-based model for the gene assembly process in ciliates. We give a procedure to decide whether a given micronuclear molecules may be assembled by using onl...
Ion Petre, Vladimir Rogojin
ALGORITHMICA
2004
103views more  ALGORITHMICA 2004»
15 years 3 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
153
Voted
DAM
2000
199views more  DAM 2000»
15 years 3 months ago
Approximation algorithms for the shortest total path length spanning tree problem
Given an undirected graph with a nonnegative weight on each edge, the shortest total path length spanning tree problem is to
Bang Ye Wu, Kun-Mao Chao, Chuan Yi Tang