3396 search results - page 135 / 680 » Tree representations of graphs |
NETWORKS
2010
13 years 7 months ago
2010
We consider a probabilistic model for the Steiner Tree problem. Under this model the problem is defined in a 2-stage setting over a first-stage complete weighted graph having it...
FOCS
2009
IEEE
14 years 3 months ago
2009
IEEE
In this paper, we set forth a new algorithm for generating approximately uniformly random spanning trees in undirected graphs. We show how to sample from a distribution that is wi...
CP
2008
Springer
13 years 10 months ago
2008
Springer
By using recent results from graph theory, including the Strong Perfect Graph Theorem, we obtain a unifying framework for a number of tractable classes of constraint problems. Thes...
ALGORITHMICA
2010
13 years 9 months ago
2010
Abstract. This paper presents algorithms whose input is an undirected graph, and whose output is a tree decomposition of width that approximates the optimal, the treewidth of that ...
MICS
2010
13 years 7 months ago
2010
Scale free graphs have attracted attention as their non-uniform structure that can be used as a model for many social networks including the WWW and the Internet. In this paper, w...