65 search results - page 7 / 13 » On approximating the maximum diameter ratio of graphs |
ISAAC
2004
Springer
14 years 23 days ago
2004
Springer
We study complexity and approximation of min weighted node coloring in planar, bipartite and split graphs. We show that this problem is NP-complete in planar graphs, even if they a...
COCOON
2004
Springer
14 years 24 days 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...
ALGOSENSORS
2009
Springer
14 years 2 months ago
2009
Springer
A wireless ad-hoc network is a collection of transceivers positioned in the plane. Each transceiver is equipped with a limited battery charge. The battery charge is then reduced a...
DC
2011
12 years 7 months ago
2011
Abstract This paper gives poly-logarithmic-round, distributed δ-approximation algorithms for covering problems with submodular cost and monotone covering constraints (Submodular-c...
MST
2010
13 years 2 months ago
2010
We study local, distributed algorithms for the capacitated minimum dominating set (CapMDS) problem, which arises in various distributed network applications. Given a network graph...