96 search results - page 4 / 20 » New Plain-Exponential Time Classes for Graph Homomorphism |
EJC
2008
13 years 5 months ago
2008
Abstract. Classes of graphs with bounded expansion are a generalization of both proper minor closed classes and degree bounded classes. Such classes are based on a new invariant, t...
SIAMDM
2008
13 years 5 months ago
2008
We first show that for any bipartite graph H with at most five vertices, there exists an on-line competitive algorithm for the class of H-free bipartite graphs. We then analyze th...
FOCS
2007
IEEE
13 years 11 months ago
2007
IEEE
: It is well-known that constraint satisfaction problems (CSP) over an unbounded domain can be solved in time nO(k) if the treewidth of the primal graph of the instance is at most ...
ACL
2008
13 years 6 months ago
2008
We present a novel approach to weakly supervised semantic class learning from the web, using a single powerful hyponym pattern combined with graph structures, which capture two pr...
APPROX
2011
Springer
12 years 5 months ago
2011
Springer
How to color 3 colorable graphs with few colors is a problem of longstanding interest. The best polynomial-time algorithm uses n0.2072 colors. There are no indications that colori...