743 search results - page 5 / 149 » Approximation Algorithms for Graph Homomorphism Problems |
COCOON
2004
Springer
14 years 1 months ago
2004
Springer
The problem of efficiently monitoring the network flow is regarded as the one to find out the minimum weighted weak vertex cover set for a given graph G = (V, E) with weight func...
IPL
2007
13 years 7 months ago
2007
We study the approximability and inapproximability of finding identifying codes and locating-dominating codes of the minimum size. In general graphs, we show that it is possible ...
JGAA
2007
13 years 7 months ago
2007
The task of finding the largest subset of vertices of a graph that induces a planar subgraph is known as the Maximum Induced Planar Subgraph problem (MIPS). In this paper, some n...
ORL
1998
13 years 7 months ago
1998
Recently, Becker and Geiger and Bafna, Berman and Fujito gave 2-approximation algorithms for the feedback vertex set problem in undirected graphs. We show how their algorithms can...
STOC
2010
ACM
14 years 17 days ago
2010
ACM
We combine the work of Garg and K¨onemann, and Fleischer with ideas from dynamic graph algorithms to obtain faster (1 − ε)-approximation schemes for various versions of the mu...