The collaborative multi-level lot-sizing problem with cost synergies
نویسندگان
چکیده
منابع مشابه
Relaxations for Two - Level Multi - Item Lot - Sizing Problem
We consider several variants of the two-level lot-sizing problem with one item at the upper level facing dependent demand, and multiple items or clients at the lower level, facing independent demands. We first show that under a natural cost assumption, it is sufficient to optimize over a stock-dominant relaxation. We further study the polyhedral structure of a strong relaxation of this problem ...
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[1] Corresponding author e-mail: [email protected] [1] Corresponding author e-mail: [email protected] Lot-sizing problems (LSPs) belong to the class of production planning problems in which the availability quantities of the production plan are always considered as a decision variable. This paper aims at developing a new mathematical model for the multi-level ca...
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We consider a multi-item lot-sizing problem in which there are demands, and unit production and storage costs. In addition production of any mix of items is measured in batches of fixed size, and there is a fixed set-up cost per batch in each period. Suppose that the unit production costs are constant over time, the storage costs are nonnegative, and for any two items the one that has a higher ...
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The multi-level lot-sizing (MLLS) problem in material requirements planning (MRP) systems belongs to those problems that industry manufacturers daily face in organizing their overall production plans. However, this combinatorial optimization problem can be solved optimally in a reasonable CPU only when very small instances are considered. This legitimates the search for heuristic techniques tha...
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ژورنال
عنوان ژورنال: International Journal of Production Research
سال: 2019
ISSN: 0020-7543,1366-588X
DOI: 10.1080/00207543.2019.1584415