219 search results - page 10 / 44 » A Better Approximation Ratio for the Vertex Cover Problem |
AAIM
2007
Springer
14 years 1 months ago
2007
Springer
The disc covering problem asks to cover a set of points on the plane with a minimum number of fix-sized discs. We develop an O(n(log n)2 (log log n)2 ) deterministic time 2.8334-a...
STOC
2010
ACM
14 years 4 months ago
2010
ACM
We consider the problem of maintaining a large matching or a small vertex cover in a dynamically changing graph. Each update to the graph is either an edge deletion or an edge ins...
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STOC
2006
ACM
14 years 7 months ago
2006
ACM
Many approximation algorithms have been presented in the last decades for hard search problems. The focus of this paper is on cryptographic applications, where it is desired to de...
APPROX
2008
Springer
13 years 9 months ago
2008
Springer
We study approximation algorithms, integrality gaps, and hardness of approximation, of two problems related to cycles of "small" length k in a given graph. The instance f...
ICALP
2010
Springer
14 years 7 days ago
2010
Springer
Computing a minimum vertex cover in graphs and hypergraphs is a well-studied optimizaton problem. While intractable in general, it is well known that on bipartite graphs, vertex c...