Improved Approximation Algorithms for Relay Placement.
Alon EfratSándor P. FeketePoornananda R. GaddehosurJoseph S. B. MitchellValentin PolishchukJukka SuomelaPublished in: ESA (2008)
Keyphrases
- approximation algorithms
- special case
- np hard
- set cover
- vertex cover
- minimum cost
- exact algorithms
- worst case
- primal dual
- network design problem
- constant factor
- np hardness
- randomized algorithms
- facility location problem
- undirected graph
- disjoint paths
- open shop
- approximation guarantees
- approximation ratio
- strongly np hard
- search algorithm
- constant factor approximation