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» On the approximability of some network design problems
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APPROX
2009
Springer
145views Algorithms» more  APPROX 2009»
13 years 11 months ago
Approximating Some Network Design Problems with Node Costs
We study several multi-criteria undirected network design problems with node costs and lengths. All these problems are related to the Multicommodity Buy at Bulk (MBB) problem in w...
Guy Kortsarz, Zeev Nutov
TALG
2008
111views more  TALG 2008»
13 years 4 months ago
On the approximability of some network design problems
Julia Chuzhoy, Anupam Gupta, Joseph Naor, Amitabh ...
ICALP
2010
Springer
13 years 9 months ago
Network Design via Core Detouring for Problems without a Core
Some of the currently best-known approximation algorithms for network design are based on random sampling. One of the key steps of such algorithms is connecting a set of source nod...
Fabrizio Grandoni, Thomas Rothvoß
JGAA
2000
179views more  JGAA 2000»
13 years 4 months ago
Approximation Algorithms for Some Graph Partitioning Problems
This paper considers problems of the following type: given an edgeweighted k-colored input graph with maximum color class size c, find a minimum or maximum c-way cut such that eac...
George He, Jiping Liu, Cheng Zhao
CIAC
2003
Springer
142views Algorithms» more  CIAC 2003»
13 years 8 months ago
Differential Approximation for Some Routing Problems
We study vehicle routing problems with constraints on the distance traveled by each vehicle or on the number of vehicles. The objective is to minimize the total distance traveled b...
Cristina Bazgan, Refael Hassin, Jérôm...