Formulations and Approximation Algorithms for Multilevel Uncapacitated Facility Location.
Camilo Ortiz-AstorquizaIván A. ContrerasGilbert LaportePublished in: INFORMS J. Comput. (2017)
Keyphrases
- approximation algorithms
- facility location
- facility location problem
- np hard
- integer programming
- lagrangian relaxation
- valid inequalities
- special case
- network design
- network design problem
- worst case
- vertex cover
- lot sizing
- minimum cost
- primal dual
- mixed integer
- approximation ratio
- multi criteria
- linear programming
- lower bound
- branch and bound algorithm
- linear program
- combinatorial auctions
- exact algorithms
- computational complexity
- np complete
- evolutionary algorithm
- constant factor