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» Steiner trees in uniformly quasi-bipartite graphs
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WADS
2007
Springer
165views Algorithms» more  WADS 2007»
14 years 5 months ago
A Near Linear Time Approximation Scheme for Steiner Tree Among Obstacles in the Plane
We present a polynomial-time approximation scheme (PTAS) for the Steiner tree problem with polygonal obstacles in the plane with running time O(n log2 n), where n denotes the numb...
Matthias Müller-Hannemann, Siamak Tazari
IPL
2002
105views more  IPL 2002»
13 years 10 months ago
Steiner trees in uniformly quasi-bipartite graphs
The area of approximation algorithms for the Steiner tree problem in graphs has seen continuous progress over the last years. Currently the best approximation
Clemens Gröpl, Stefan Hougardy, Till Nierhoff...
ESA
2008
Springer
108views Algorithms» more  ESA 2008»
14 years 20 days ago
Two-Stage Robust Network Design with Exponential Scenarios
Abstract. We study two-stage robust variants of combinatorial optimization problems like Steiner tree, Steiner forest, and uncapacitated facility location. The robust optimization ...
Rohit Khandekar, Guy Kortsarz, Vahab S. Mirrokni, ...
INFOCOM
2010
IEEE
13 years 9 months ago
Deploying Mesh Nodes under Non-Uniform Propagation
Abstract—Wireless mesh networks are popular as a costeffective means to provide broadband connectivity to large user populations. A mesh network placement provides coverage, such...
Joshua Robinson, Mohit Singh, Ram Swaminathan, Edw...
SODA
2008
ACM
97views Algorithms» more  SODA 2008»
14 years 9 days ago
Stochastic analyses for online combinatorial optimization problems
In this paper, we study online algorithms when the input is not chosen adversarially, but consists of draws from some given probability distribution. While this model has been stu...
Naveen Garg, Anupam Gupta, Stefano Leonardi, Piotr...