743 search results - page 26 / 149 » Approximation Algorithms for Graph Homomorphism Problems |
CORR
2011
Springer
13 years 2 months ago
2011
Springer
—The subject of this work is the patrolling of an environment with the aid of a team of autonomous agents. We consider both the design of open-loop trajectories with optimal prop...
ICALP
2009
Springer
14 years 8 months ago
2009
Springer
We improve the approximation ratios for two optimization problems in planar graphs. For node-weighted Steiner tree, a classical network-optimization problem, the best achievable ap...
ALGORITHMICA
1998
13 years 7 months ago
1998
The dominatingset problemin graphs asks for a minimumsize subset of vertices with the followingproperty: each vertex is required to either be in the dominating set, or adjacent to...
COLOGNETWENTE
2007
13 years 9 months ago
2007
We present the first polynomial-time approximation scheme (PTAS) for the Minimum Independent Dominating Set problem in graphs of polynomially bounded growth. Graphs of bounded gr...
TOC
2008
13 years 7 months ago
2008
: Ahlswede and Winter [IEEE Trans. Inf. Th. 2002] introduced a Chernoff bound for matrix-valued random variables, which is a non-trivial generalization of the usual Chernoff bound ...