57 search results - page 11 / 12 » On Approximating Minimum Vertex Cover for Graphs with Perfec... |
CORR
2011
Springer
12 years 8 months ago
2011
Springer
: The Bethe Permanent of a Non-Negative Matrix Pascal O. Vontobel HP Laboratories HPL-2011-116 Bethe approximation; Bethe permanent; graph cover; partition function; perfect ma...
JDA
2007
13 years 4 months ago
2007
Given an undirected graph G = (V,E) and a source vertex s ∈ V , the k-traveling repairman (KTR) problem, also known as the minimum latency problem, asks for k tours, each starti...
DAM
2007
13 years 4 months ago
2007
In 1997 Lampert and Slater introduced parallel knock-out schemes, an iterative process on graphs that goes through several rounds. In each round of this process, every vertex elim...
ICALP
2011
Springer
12 years 8 months ago
2011
Springer
We present an O( √ n log n)-approximation algorithm for the problem of finding the sparsest spanner of a given directed graph G on n vertices. A spanner of a graph is a sparse ...
ESA
2005
Springer
13 years 10 months ago
2005
Springer
Abstract. Traditional shortest path problems play a central role in both the design and use of communication networks and have been studied extensively. In this work, we consider a...