1461 search results - page 22 / 293 » Complexity of Graph Covering Problems |
SEMWEB
2009
Springer
14 years 2 months ago
2009
Springer
Abstract. Ontologies are tools for describing and structuring knowledge, with many applications in searching and analyzing complex knowledge bases. Since building them manually is ...
SOFSEM
2009
Springer
14 years 4 months ago
2009
Springer
During the last years, speed-up techniques for DIJKSTRA’s algorithm have been developed that make the computation of shortest paths a matter of microseconds even on huge road net...
COCOON
2005
Springer
14 years 1 months ago
2005
Springer
We consider the problem of finding a balanced ordering of the vertices of a graph. More precisely, we want to minimise the sum, taken over all vertices v, of the difference betwe...
WEA
2005
Springer
14 years 29 days ago
2005
Springer
The vertex cover problem is a classic NP-complete problem for which the best worst-case approximation ratio is roughly 2. In this paper, we use a collection of simple reductions, e...
STACS
2005
Springer
14 years 1 months ago
2005
Springer
Cycle covering is a well-studied problem in computer science. In this paper, we develop approximation algorithms for variants of cycle covering problems which bound the size and/o...