166 search results - page 13 / 34 » Fixed-parameter evolutionary algorithms and the vertex cover... |
STOC
2003
ACM
15 years 2 months ago
2003
ACM
Given a k-uniform hypergraph, the Ek-Vertex-Cover problem is to find the smallest subset of vertices that intersects every hyperedge. We present a new multilayered PCP constructi...
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DCOSS
2008
Springer
14 years 11 months ago
2008
Springer
We present the first local approximation schemes for maximum independent set and minimum vertex cover in unit disk graphs. In the graph model we assume that each node knows its geo...
BIRTHDAY
2009
Springer
15 years 4 months ago
2009
Springer
Consider a tree T and a forest F. The paper discusses the following new problems: The Forest vertex-cover problem (FVC): cover the vertices of T by a minimum number of copies of tr...
ICALP
2010
Springer
15 years 2 months ago
2010
Springer
Computing a minimum vertex cover in graphs and hypergraphs is a well-studied optimizaton problem. While intractable in general, it is well known that on bipartite graphs, vertex c...
IPCO
2007
14 years 11 months ago
2007
Let A be the edge-node incidence matrix of a bipartite graph G = (U, V ; E), I be a subset the nodes of G, and b be a vector such that 2b is integral. We consider the following mi...