783 search results - page 7 / 157 » Improved approximation algorithms for the freeze-tag problem |
WINET
2010
13 years 7 months ago
2010
In this paper we consider how to collect data from sensors deployed in the Euclidean plane in a timeefficient way. We assume that all sensors could adjust their transmission range...
TAMC
2009
Springer
2009
Springer
Linear Programming Based Approximation Algorithms for Feedback Set Problems in Bipartite Tournaments
14 years 3 months ago
We consider the feedback vertex set and feedback arc set problems in bipartite tournaments. We improve on recent results by giving a 2-approximation algorithm for the feedback vert...
FOCS
2008
IEEE
14 years 3 months ago
2008
IEEE
We present a technique for transforming classical approximation algorithms into constant-time algorithms that approximate the size of the optimal solution. Our technique is applic...
SPAA
2010
ACM
14 years 1 months ago
2010
ACM
This paper presents the design and analysis of parallel approximation algorithms for facility-location problems, including NC and RNC algorithms for (metric) facility location, k-...
SODA
2003
ACM
13 years 10 months ago
2003
ACM
Previous work on the partial Latin square extension (PLSE) problem resulted in a 2-approximation algorithm based on the LP relaxation of a three-dimensional assignment IP formulat...