91 search results - page 2 / 19 » A Threshold of ln n for Approximating Set Cover |
COCOON
2004
Springer
13 years 10 months ago
2004
Springer
The problem of efficiently monitoring the network flow is regarded as the one to find out the minimum weighted weak vertex cover set for a given graph G = (V, E) with weight func...
CORR
2010
Springer
13 years 5 months ago
2010
Springer
Given a directed graph G with non negative cost on the arcs, a directed tree cover of G is a directed tree such that either head or tail (or both of them) of every arc in G is touc...
SIAMCOMP
2002
13 years 5 months ago
2002
A set of vertices in a graph is a dominating set if every vertex outside the set has a neighbor in the set. The domatic number problem is that of partitioning the vertices of a gra...
CIAC
2006
Springer
13 years 9 months ago
2006
Springer
We consider the minimum line covering problem: given a set S of n points in the plane, we want to find the smallest number l of straight lines needed to cover all n points in S. W...
APPROX
2000
Springer
13 years 9 months ago
2000
Springer
Given a graph (directed or undirected) with costs on the edges, and an integer k, we consider the problem of nding a k-node connected spanning subgraph of minimum cost. For the ge...