743 search results - page 32 / 149 » Approximation Algorithms for Graph Homomorphism Problems |
SDM
2011
SIAM
12 years 10 months ago
2011
SIAM
In this paper we present a fast and accurate procedure called clustered low rank matrix approximation for massive graphs. The procedure involves a fast clustering of the graph and...
WADS
2009
Springer
14 years 2 months ago
2009
Springer
Abstract. The buy-at-bulk network design problem has been extensively studied in the general graph model. In this paper we consider the geometric version of the problem, where all ...
FOCS
2000
IEEE
14 years 6 days ago
2000
IEEE
A bisection of a graph with n vertices is a partition of its vertices into two sets, each of size n/2. The bisection cost is the number of edges connecting the two sets. The proble...
FSTTCS
2009
Springer
14 years 2 months ago
2009
Springer
In this paper, we initiate the study of designing approximation algorithms for FaultTolerant Group-Steiner (FTGS) problems. The motivation is to protect the well-studied group-Ste...
SODA
2001
ACM
13 years 9 months ago
2001
ACM
We give an implementation of the Goemans-Williamson clustering procedure which is at the core of several approximation algorithms including those for Generalized Steiner Trees, Pr...