291 search results - page 6 / 59 » Factor 2 Approximation Algorithm for the Generalized Steiner... |
SODA
1992
ACM
13 years 7 months ago
1992
ACM
We show that the length of the minimum weight Steiner triangulation (MWST) of a point set can be approximated within a constant factor by a triangulation algorithm based on quadtr...
ALGORITHMICA
1998
13 years 6 months ago
1998
The dominatingset problemin graphs asks for a minimumsize subset of vertices with the followingproperty: each vertex is required to either be in the dominating set, or adjacent to...
FSTTCS
2009
Springer
14 years 1 months ago
2009
Springer
In this paper, we initiate the study of designing approximation algorithms for FaultTolerant Group-Steiner (FTGS) problems. The motivation is to protect the well-studied group-Ste...
FOCS
2008
IEEE
14 years 1 months ago
2008
IEEE
Given a complete undirected graph, a cost function on edges and a degree bound B, the degree bounded network design problem is to find a minimum cost simple subgraph with maximum...
SODA
2003
ACM
13 years 8 months ago
2003
ACM
The natural relaxation for the Group Steiner Tree problem, as well as for its generalization, the Directed Steiner Tree problem, is a flow-based linear programming relaxation. We...