20 search results - page 3 / 4 » Improvement on vertex cover for low-degree graphs |
DAM
2010
13 years 7 months ago
2010
An equivalence graph is a disjoint union of cliques, and the equivalence number eq(G) of a graph G is the minimum number of equivalence subgraphs needed to cover the edges of G. W...
ICALP
2009
Springer
14 years 7 months ago
2009
Springer
We study the cover time of multiple random walks. Given a graph G of n vertices, assume that k independent random walks start from the same vertex. The parameter of interest is the...
FOCS
2008
IEEE
14 years 1 months ago
2008
IEEE
We present a technique for transforming classical approximation algorithms into constant-time algorithms that approximate the size of the optimal solution. Our technique is applic...
CORR
2004
Springer
13 years 7 months ago
2004
Springer
Abstract. The phylogenetic tree construction is to infer the evolutionary relationship between species from the experimental data. However, the experimental data are often imperfec...
ESA
2010
Springer
13 years 8 months ago
2010
Springer
Abstract. Possibly the most famous algorithmic meta-theorem is Courcelle's theorem, which states that all MSO-expressible graph properties are decidable in linear time for gra...