36 search results - page 1 / 8 » Improved Approximation Algorithms for the Spanning Star Fore... |
APPROX
2007
Springer
14 years 5 months ago
2007
Springer
A star graph is a tree of diameter at most two. A star forest is a graph that consists of node-disjoint star graphs. In the spanning star forest problem, given an unweighted graph ...
AAIM
2011
Springer
13 years 2 months ago
2011
Springer
A star forest is a collection of vertex-disjoint trees of depth at most 1, and its size is the number of leaves in all its components. A spanning star forest of a given graph G is ...
MFCS
2009
Springer
14 years 3 months ago
2009
Springer
We present a simple algorithm for the maximum spanning star forest problem. We take advantage of the fact that the problem is a special case of complementary set cover and we adapt...
DM
2002
13 years 11 months ago
2002
A star forest of a graph G is a spanning subgraph of G in which each component is a star. The minimum number of edges required to guarantee that an arbitrary graph, or a bipartite...
SODA
1992
ACM
14 years 10 days ago
1992
ACM
We present a general approximation technique for a large class of graph problems. Our technique mostly applies to problems of covering, at minimum cost, the vertices of a graph wit...