An Improved Integrality Gap for the Călinescu-Karloff-Rabani Relaxation for Multiway Cut.
Haris AngelidakisYury MakarychevPasin ManurangsiPublished in: IPCO (2017)
Keyphrases
- integrality gap
- linear programming relaxation
- linear program
- tight upper and lower bounds
- lower bound
- approximation algorithms
- arbitrarily close
- linear programming
- knapsack problem
- lp relaxation
- valid inequalities
- primal dual
- integer programming formulation
- low degree
- branch and bound
- optimal solution
- column generation
- feasible solution
- finite number
- integer programming
- upper bound
- mixed integer programming
- integer program
- np hardness
- randomly generated
- np hard
- message passing
- multistage
- tabu search
- bayesian networks