Sciweavers

534 search results - page 7 / 107
» Tight approximation algorithm for connectivity augmentation ...
Sort
View
SWAT
2010
Springer
242views Algorithms» more  SWAT 2010»
14 years 7 months ago
Minimizing the Diameter of a Network Using Shortcut Edges
We study the problem of minimizing the diameter of a graph by adding k shortcut edges, for speeding up communication in an existing network design. We develop constant-factor appro...
Erik D. Demaine, Morteza Zadimoghaddam
ALGORITHMICA
2011
14 years 1 months ago
Approximating Minimum-Power Degree and Connectivity Problems
Guy Kortsarz, Vahab S. Mirrokni, Zeev Nutov, Elena...
APPROX
2000
Springer
190views Algorithms» more  APPROX 2000»
15 years 1 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
FOCS
2009
IEEE
15 years 4 months ago
Approximating Minimum Cost Connectivity Problems via Uncrossable Bifamilies and Spider-Cover Decompositions
Abstract— We give approximation algorithms for the Generalized Steiner Network (GSN) problem. The input consists of a graph
Zeev Nutov
SODA
2008
ACM
131views Algorithms» more  SODA 2008»
14 years 11 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...