On the Integrality Gap of the Subtour LP for the 1,2-TSP
Jiawei QianFrans SchalekampDavid P. WilliamsonAnke van ZuylenPublished in: CoRR (2011)
Keyphrases
- subtour elimination
- lp relaxation
- integrality gap
- linear programming
- linear program
- message passing
- integer programming
- optimal solution
- knapsack problem
- valid inequalities
- energy minimization
- feasible solution
- traveling salesman problem
- integer programming formulation
- integer program
- maximum a posteriori
- global constraints
- np hard
- objective function
- graph cuts
- linear programming relaxation
- distributed systems
- column generation
- solution quality
- approximate solutions
- belief propagation
- upper bound
- genetic algorithm
- cost function