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Heuristic for integrated purchasing and production planning

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  • Supakanya Chinprateep
  • Rein Boondiskulchok
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    Abstract

    The planning of purchasing and production lot-size for multi-item multi-period multi-workstation capacitated production (MLCLSP-M) is discussed. Since the model is a NP-hard problem, this research proposes a heuristic method (A-LS), which decomposes the model into two sub-problems and iteratively solves them. The two sub-problems consisting of an assignment sub-problem with given lot size and a lot sizing sub-problem with given assignment. Solution method was developed, tested and compared to illustrate the solution quality and computational time. Mathematical models for both sub-problems were solved with AMPL/CPLEX 8.0.0 solver. The computational results indicate that the proposed heuristic (A-LS) gives satisfactory solution with faster solving time comparing with the original mathematical model. [Submitted 15 July 2008; Revised 09 October 2009, 09 December 2009; Accepted 23 December 2009]

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    Bibliographic Info

    Article provided by Inderscience Enterprises Ltd in its journal European J. of Industrial Engineering.

    Volume (Year): 5 (2011)
    Issue (Month): 1 ()
    Pages: 64-80

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    Handle: RePEc:ids:eujine:v:5:y:2011:i:1:p:64-80

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    Web page: http://www.inderscience.com/browse/index.php?journalID=210

    Related research

    Keywords: production planning; lot sizing; capacitated lot sizing problem; CLSP; heuristics; mathematical modelling.;

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