Accelerating column generation for aircraft scheduling using constraint propagation
Computers and Operations Research
A global constraint for nesting problems
Artificial Intelligence Review
The alldifferent constraint with precedences
CPAIOR'11 Proceedings of the 8th international conference on Integration of AI and OR techniques in constraint programming for combinatorial optimization problems
The constraint of difference and total dual integrality
Proceedings of the 17th Panhellenic Conference on Informatics
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Efforts aimed at combining operations research and constraint programming have become increasingly prominent and successful in the last few years. It is now widely recognized that integration, e.g., inference in the form of constraint propagation and relaxation in the form of linear programming, can yield substantial results. In this paper, we argue the benefits of constraint programming's global constraints as a basis for such an integration and discuss the advantages along with some examples. We illustrate the integration on the global cardinality structure, on piecewise linear functions, on variable subscripts, on the cycle structure and on resource constraints. Each example is completed with a case study.