534 search results - page 3 / 107 » Tight approximation algorithm for connectivity augmentation ... |
APPROX
2008
Springer
13 years 7 months ago
2008
Springer
We consider the variant of the minimum vertex cover problem in which we require that the cover induces a connected subgraph. We give new approximation results for this problem in d...
ESA
2005
Springer
13 years 11 months ago
2005
Springer
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...
SWAT
2004
Springer
13 years 11 months ago
2004
Springer
In this paper, we investigate the test set problem and its variations that appear in a variety of applications. In general, we are given a universe of objects to be “distinguish...
ISAAC
2009
Springer
14 years 4 days ago
2009
Springer
It is shown that if a planar straight line graph (PSLG) with n vertices in general position in the plane can be augmented to a 3-edge-connected PSLG, then 2n−2 new edges are enou...
ESA
2008
Springer
13 years 7 months ago
2008
Springer
For several NP-hard network design problems, the best known approximation algorithms are remarkably simple randomized algorithms called Sample-Augment algorithms in [11]. The algor...