37 search results - page 5 / 8 » Hardness of Approximate Hypergraph Coloring |
WG
2007
Springer
15 years 3 months ago
2007
Springer
Abstract. We present hardness results, approximation heuristics, and exact algorithms for bottleneck labeled optimization problems arising in the context of graph theory. This long...
APPROX
2009
Springer
15 years 4 months ago
2009
Springer
The (undirected) Node Connectivity Augmentation (NCA) problem is: given a graph J = (V, EJ ) and connectivity requirements {r(u, v) : u, v ∈ V }, find a minimum size set I of n...
DISOPT
2010
14 years 9 months ago
2010
We consider labeled Traveling Salesman Problems, defined upon a complete graph of n vertices with colored edges. The objective is to find a tour of maximum or minimum number of co...
IPL
2008
14 years 9 months ago
2008
As part of the efforts put in understanding the intricacies of the k-colorability problem, different distributions over k-colorable graphs were analyzed. While the problem is notor...
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ALGORITHMICA
2004
14 years 9 months ago
2004
We consider the Chromatic Sum Problem on bipartite graphs which appears to be much harder than the classical Chromatic Number Problem. We prove that the Chromatic Sum Problem is NP...