Keyphrases
- approximation algorithms
- np hard
- special case
- vertex cover
- worst case
- network design problem
- facility location problem
- primal dual
- np hardness
- minimum cost
- approximation ratio
- set cover
- exact algorithms
- approximation schemes
- constant factor
- undirected graph
- minimum weight
- computational complexity
- precedence constraints
- search algorithm
- combinatorial auctions
- combinatorial optimization
- randomized algorithms
- metaheuristic