Pruning in column generation for service vehicle dispatching.
Stephan WestphalSven Oliver KrumkePublished in: Ann. Oper. Res. (2008)
Keyphrases
- column generation
- branch and bound
- linear programming
- set partitioning
- constraint programming
- linear program
- integer program
- mixed integer programming
- integer linear programming
- integer programming
- exact solution
- optimal solution
- search space
- vehicle routing
- pick up and delivery
- lagrangean relaxation
- lagrangian relaxation
- scheduling problem
- vehicle routing problem with time windows
- set covering
- cutting plane
- linear programming problems
- cutting plane algorithm
- linear programming relaxation
- upper bound
- lower bound
- search algorithm
- valid inequalities