AAAI Publications, Nineteenth International Conference on Automated Planning and Scheduling

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Just-In-Time Scheduling with Constraint Programming
Jean-Noël Monette, Yves Deville, Pascal Van Hentenryck

Last modified: 2009-10-16

Abstract


This paper considers Just-In-Time Job-Shop Scheduling, in which each activity has an earliness and a tardiness cost with respect to a due date. It proposes a constraint programming approach, which includes a novel filtering algorithm and dedicated heuristics. The filtering algorithm uses a machine relaxation to produce a lower bound that can be obtained by solving a Just-In-Time Pert problem. It also includes pruning rules which update the variable bounds and detect precedence constraints. The paper presents experimental results which demonstrate the effectiveness of the approach over a wide range of benchmarks.

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