599 search results - page 37 / 120 » Approximation Algorithms for Dominating Set in Disk Graphs |
141
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NETWORKS
2006
15 years 2 months ago
2006
Abstract. The Steiner tree problem is to find a shortest subgraph that spans a given set of vertices in a graph. This problem is known to be NP-hard and it is well known that a pol...
DM
2008
15 years 2 months ago
2008
We consider the problems of finding the maximum number of vertex-disjoint triangles (VTP) and edge-disjoint triangles (ETP) in a simple graph. Both problems are NP-hard. The algor...
138
Voted
SIAMCOMP
2000
15 years 2 months ago
2000
There are several results available in the literature dealing with efficient construction of t-spanners for a given set S of n points in Rd. t-spanners are Euclidean graphs in whic...
262
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SDM
2011
SIAM
14 years 5 months ago
2011
SIAM
In this paper we present a fast and accurate procedure called clustered low rank matrix approximation for massive graphs. The procedure involves a fast clustering of the graph and...
114
Voted
JCT
2007
15 years 2 months ago
2007
Let G be a d-regular graph with girth g, and let α be the independence number of G. We show that α(G) ≥ 1 2 1 − (d − 1)−2/(d−2) − (g) n where (g) → 0 as g → ∞,...