Improved Approximation Algorithms for the Spanning Star Forest Problem.
Ning ChenRoee EngelbergC. Thach NguyenPrasad RaghavendraAtri RudraGyanit SinghPublished in: APPROX-RANDOM (2007)
Keyphrases
- approximation algorithms
- np hard
- special case
- worst case
- vertex cover
- minimum cost
- network design problem
- facility location problem
- approximation ratio
- disjoint paths
- np hardness
- constant factor
- randomized algorithms
- open shop
- exact algorithms
- primal dual
- approximation schemes
- optimal solution
- combinatorial auctions
- integer programming
- constant factor approximation