100 search results - page 6 / 20 » Upper Bounds for Vertex Cover Further Improved |
ESA
2001
Springer
13 years 12 months ago
2001
Springer
In this paper we introduce a general strategy for approximating the solution to minimisation problems in random regular graphs. We describe how the approach can be applied to the m...
COMPGEOM
2010
ACM
14 years 14 days ago
2010
ACM
We present new bounds on the first selection lemma in R3 . This makes progress on the open problems of Bukh, Matoušek and Nivash [6] and Boros-Füredi [4] for the three-dimensio...
EVOW
2007
Springer
14 years 1 months ago
2007
Springer
Many instances of NP-hard problems can be solved efficiently if the treewidth of their corresponding graph is small. Finding the optimal tree decompositions is an NP-hard problem a...
ISTCS
1993
Springer
13 years 11 months ago
1993
Springer
This thesis introduces a model of a random walk on a colored undirected graph. Such a graph has a single vertex set and distinct sets of edges, each of which has a color. A par...
FOCS
2008
IEEE
14 years 1 months ago
2008
IEEE
We present a technique for transforming classical approximation algorithms into constant-time algorithms that approximate the size of the optimal solution. Our technique is applic...