Solving VRPTWs with Constraint Programming Based Column Generation

Louis-Martin Rousseau (), Michel Gendreau (), Gilles Pesant () and Filippo Focacci ()

Annals of Operations Research, 2004, vol. 130, issue 1, 199-216

Abstract: Constraint programming based column generation is a hybrid optimization framework recently proposed (Junker et al., 1999) that uses constraint programming to solve column generation subproblems. In the past, this framework has been used to solve scheduling problems where the associated graph is naturally acyclic and has done so very efficiently. This paper attempts to solve problems whose graph is cyclic by nature, such as routing problems, by solving the elementary shortest path problem with constraint programming. We also introduce new redundant constraints which can be useful in the general framework. The experimental results are comparable to those of the similar method in the literature (Desrochers, Desrosiers, and Solomon, 1992) but the proposed method yields a much more flexible approach. Copyright Kluwer Academic Publishers 2004

Keywords: column generation; constraint programming; hybrid method; vehicle routing with time windows; optimization constraints (search for similar items in EconPapers)
Date: 2004
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Citations: View citations in EconPapers (15)

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DOI: 10.1023/B:ANOR.0000032576.73681.29

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