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ESA
2005
Springer
145views Algorithms» more  ESA 2005»
14 years 2 months ago
Approximation Schemes for Minimum 2-Connected Spanning Subgraphs in Weighted Planar Graphs
Abstract. We present new approximation schemes for various classical problems of finding the minimum-weight spanning subgraph in edge-weighted undirected planar graphs that are re...
André Berger, Artur Czumaj, Michelangelo Gr...
CCCG
2010
13 years 10 months ago
Direction assignment in wireless networks
In this paper we consider a wireless network, where each transceiver is equipped with a directional antenna, and study two direction assignment problems, determined by the type of...
Boaz Ben-Moshe, Paz Carmi, Lilach Chaitman, Matthe...
IWPEC
2009
Springer
14 years 3 months ago
On the Directed Degree-Preserving Spanning Tree Problem
In this paper we initiate a systematic study of the Reduced Degree Spanning Tree problem, where given a digraph D and a nonnegative integer k, the goal is to construct a spanning o...
Daniel Lokshtanov, Venkatesh Raman, Saket Saurabh,...
SIAMCOMP
2010
97views more  SIAMCOMP 2010»
13 years 6 months ago
Designing Network Protocols for Good Equilibria
Designing and deploying a network protocol determines the rules by which end users interact with each other and with the network. We consider the problem of designing a protocol t...
Ho-Lin Chen, Tim Roughgarden, Gregory Valiant
APPROX
2006
Springer
234views Algorithms» more  APPROX 2006»
14 years 5 days ago
Constant-Factor Approximation for Minimum-Weight (Connected) Dominating Sets in Unit Disk Graphs
For a given graph with weighted vertices, the goal of the minimum-weight dominating set problem is to compute a vertex subset of smallest weight such that each vertex of the graph...
Christoph Ambühl, Thomas Erlebach, Matú...