743 search results - page 110 / 149 » Approximation Algorithms for Graph Homomorphism Problems |
ISAAC
2010
Springer
13 years 6 months ago
2010
Springer
We study the NP-complete TARGET SET SELECTION (TSS) problem occurring in social network analysis. Complementing results on its approximability and extending results for its restric...
INFOCOM
2011
IEEE
12 years 11 months ago
2011
IEEE
—It is well-known that the application of directional antennas can help conserve bandwidth and energy consumption in wireless networks. Thus, to achieve efficiency in wireless n...
CORR
2007
Springer
13 years 8 months ago
2007
Springer
The Steiner tree problem is a classical NP-hard optimization problem with a wide range of practical applications. In an instance of this problem, we are given an undirected graph ...
FSTTCS
2000
Springer
13 years 11 months ago
2000
Springer
We investigate a variant of on-line edge-coloring in which there is a fixed number of colors availableandtheaimistocolorasmanyedgesaspossible.Weproveupperandlowerboundsontheperform...
MP
2006
13 years 8 months ago
2006
Given an undirected graph G = (V;E) and three speci ed terminal nodes t1;t2;t3, a 3-cut is a subset A of E such that no two terminals are in the same component of GnA. If a non-neg...