Keyphrases
- approximation algorithms
- np hard
- special case
- facility location problem
- worst case
- vertex cover
- minimum cost
- network design problem
- np hardness
- exact algorithms
- approximation ratio
- randomized algorithms
- open shop
- primal dual
- constant factor
- shared memory
- set cover
- approximation schemes
- disjoint paths
- combinatorial auctions
- theoretical analysis