65 search results - page 1 / 13 » Polynomial time approximation schemes for minimum disk cover... |
JCO
2010
13 years 3 months ago
2010
The following planar minimum disk cover problem is considered in this paper: given a set D of n disks and a set P of m points in the Euclidean plane, where each disk covers a subse...
COCOA
2008
Springer
13 years 6 months ago
2008
Springer
Connected Vertex Cover Problem (CVC) is an NP-hard problem. The currently best known approximation algorithm for CVC has performance ration 2. This paper gives the first Polynomial...
ICALP
2001
Springer
13 years 9 months ago
2001
Springer
We study the generalization of covering problems to partial covering. Here we wish to cover only a desired number of elements, rather than covering all elements as in standard cov...
DCOSS
2008
Springer
13 years 6 months ago
2008
Springer
We present the first local approximation schemes for maximum independent set and minimum vertex cover in unit disk graphs. In the graph model we assume that each node knows its geo...
TCS
2008
13 years 4 months ago
2008
The Minimum-Energy Broadcast problem is to assign a transmission range to every station of an ad-hoc wireless networks so that (i) a given source station is allowed to perform bro...