Single and parallel machine capacitated lotsizing and scheduling: New iterative MIP-based neighborhood search heuristics |
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Authors: | Ross JW James Bernardo Almada-Lobo |
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Affiliation: | 1. Department of Management, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand;2. Faculdade de Engenharia da Universidade do Porto, Porto, Portugal |
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Abstract: | We propose a general-purpose heuristic approach combining metaheuristics and mixed integer programming to find high quality solutions to the challenging single- and parallel-machine capacitated lotsizing and scheduling problem with sequence-dependent setup times and costs. Commercial solvers fail to solve even medium-sized instances of this NP-hard problem; therefore, heuristics are required to find competitive solutions. We develop construction, improvement and search heuristics all based on MIP formulations. We then compare the performance of these heuristics with those of two metaheuristics and other MIP-based heuristics that have been proposed in the literature, and to a state-of-the-art commercial solver. A comprehensive set of computational experiments shows the effectiveness and efficiency of the main approach, a stochastic MIP-based local search heuristic, in solving medium to large size problems. Our solution procedures are quite flexible and may easily be adapted to cope with model extensions or to address different optimization problems that arise in practice. |
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Keywords: | CLSD-PM Sequence-dependent setup Mixed integer programming Relax-and-fix Local search Metaheuristic Parallel machine |
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