83 search results - page 12 / 17 » An Improved Exact Algorithm for Cubic Graph TSP |
COCO
2009
Springer
14 years 2 months ago
2009
Springer
We study the inapproximability of Vertex Cover and Independent Set on degree d graphs. We prove that: • Vertex Cover is Unique Games-hard to approximate to within a factor 2−(...
SIGMOD
2010
ACM
13 years 5 months ago
2010
ACM
Given a graph database D and a query graph g, an exact subgraph matching query asks for the set S of graphs in D that contain g as a subgraph. This type of queries find important...
FSTTCS
2006
Springer
13 years 11 months ago
2006
Springer
Given a graph G=(V, E) on n vertices, the MAXIMUM r-REGULAR INDUCED SUBGRAPH (M-r-RIS) problems ask for a maximum sized subset of vertices R V such that the induced subgraph on R,...
TIT
2008
13 years 7 months ago
2008
Abstract--Low-Density Parity-Check (LDPC) codes are usually decoded by running an iterative belief-propagation algorithm over the factor graph of the code. In the traditional messa...
LCPC
2009
Springer
14 years 2 days ago
2009
Springer
This paper improves our previous research effort [1] by providing an efficient method for kernel loop unrolling minimisation in the case of already scheduled loops, where circular...