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» Approximating Steiner Networks with Node-Weights
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SODA
2012
ACM
225views Algorithms» more  SODA 2012»
12 years 12 months ago
Approximating rooted Steiner networks
The Directed Steiner Tree (DST) problem is a cornerstone problem in network design. We focus on the generalization of the problem with higher connectivity requirements. The proble...
Joseph Cheriyan, Bundit Laekhanukit, Guyslain Nave...
CCCG
2007
14 years 11 months ago
Terminal Steiner Tree with Bounded Edge Length
In this paper, we study a Steiner tree related problem called “Terminal Steiner Tree with Bounded Edge Length”: given a set of terminal points P in a plane, one is asked to ...
Zhiyong Lin
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
SIAMCOMP
2008
104views more  SIAMCOMP 2008»
14 years 9 months ago
A Group-Strategyproof Cost Sharing Mechanism for the Steiner Forest Game
We consider a game-theoretical variant of the Steiner forest problem in which each player j, out of a set of k players, strives to connect his terminal pair (sj, tj) of vertices in...
Jochen Könemann, Stefano Leonardi, Guido Sch&...
NETWORKS
2006
14 years 9 months ago
Lower bounds for the relative greedy algorithm for approximating Steiner trees
Abstract. The Steiner tree problem is to find a shortest subgraph that spans a given set of vertices in a graph. This problem is known to be NP-hard and it is well known that a pol...
Stefan Hougardy, Stefan Kirchner