362 search results - page 22 / 73 » A Branch-and-Cut algorithm for graph coloring |
JGAA
2000
13 years 7 months ago
2000
This paper considers problems of the following type: given an edgeweighted k-colored input graph with maximum color class size c, find a minimum or maximum c-way cut such that eac...
ISAAC
2004
Springer
14 years 1 months ago
2004
Springer
We study complexity and approximation of min weighted node coloring in planar, bipartite and split graphs. We show that this problem is NP-complete in planar graphs, even if they a...
AAIM
2008
Springer
14 years 2 months ago
2008
Springer
We present a polynomial-time approximation algorithm for legally coloring as many edges of a given simple graph as possible using two colors. It achieves an approximation ratio of ...
ESA
2006
Springer
13 years 11 months ago
2006
Springer
We consider the following vertex coloring problem. We are given an undirected graph G = (V, E), where each vertex v is associated with a penalty rejection cost rv. We need to choos...
ALGORITHMICA
2010
13 years 6 months ago
2010
The problem of computing the chromatic number of a P5-free graph (a graph which contains no path on 5 vertices as an induced subgraph) is known to be NP-hard. However, we show tha...