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SWAT
2010
Springer
204views Algorithms» more  SWAT 2010»
13 years 5 months ago
Feasible and Accurate Algorithms for Covering Semidefinite Programs
In this paper we describe an algorithm to approximately solve a class of semidefinite programs called covering semidefinite programs. This class includes many semidefinite programs...
Garud Iyengar, David J. Phillips, Clifford Stein
WEA
2005
Springer
89views Algorithms» more  WEA 2005»
14 years 25 days ago
Implementation of Approximation Algorithms for the Multicast Congestion Problem
Abstract. We implement the approximation algorithm for the multicast congestion problem in communication networks in [14] based on the fast approximation algorithm for packing prob...
Qiang Lu, Hu Zhang
WEA
2007
Springer
111views Algorithms» more  WEA 2007»
14 years 1 months ago
Vertex Cover Approximations on Random Graphs
Abstract. The vertex cover problem is a classical NP-complete problem for which the best worst-case approximation ratio is 2− o(1). In this paper, we use a collection of simple g...
Eyjolfur Asgeirsson, Clifford Stein
APPROX
2000
Springer
190views Algorithms» more  APPROX 2000»
13 years 11 months ago
Approximating node connectivity problems via set covers
Given a graph (directed or undirected) with costs on the edges, and an integer k, we consider the problem of nding a k-node connected spanning subgraph of minimum cost. For the ge...
Guy Kortsarz, Zeev Nutov
GECCO
2007
Springer
193views Optimization» more  GECCO 2007»
14 years 1 months ago
Approximating covering problems by randomized search heuristics using multi-objective models
The main aim of randomized search heuristics is to produce good approximations of optimal solutions within a small amount of time. In contrast to numerous experimental results, th...
Tobias Friedrich, Nils Hebbinghaus, Frank Neumann,...