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| Tekijä: | Belvaux, G. Wolsey, L. A. |
| Otsikko: | Modelling Practical Lot-Sizing Problems as Mixed- Integer Programs |
| Lehti: | Management Science
2001 : JUL, VOL. 47:7, p. 993-1007 |
| Asiasana: | PRODUCTION PLANNING INTEGER PROGRAMMING LOT-SIZE MODEL |
| Kieli: | eng |
| Tiivistelmä: | In spite of the remarkable improvements in the quality of general purpose mixed-integer programming software, the effective solution of a variety of lot-sizing problems depends crucially on the development of tight formulations for the special problem features occurring in practice. After reviewing some of the basic preprocessing techniques for handling safety stocks and multilevel problems, the authors discuss a variety of aspects arising particularly in small and large bucket (time period) models such as start-ups, changeovers, minimum batch sizes, choice of one or two set-ups per period, etc. A set of applications is described that contains one or more of these special features, and some indicative computational results are presented. |
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