Journal
APPLIED MATHEMATICAL MODELLING
Volume 50, Issue -, Pages 772-780Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.apm.2016.10.037
Keywords
Inventory; Lot-sizing with remanufacturing; Mixed integer programming; Multi-item; Reverse logistics
Funding
- Coordination for the Improvement of Higher Education Personnel (CAPES), Brazil
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In this study, we consider the multi-item economic lot-sizing problem with remanufacturing and uncapacitated production. By observing that the problem comprises several independent single-item problems, we show how very high quality feasible solutions and bounds can be obtained by solving each item separately using an effective recently proposed approach. Computational experiments demonstrate that our approach improves the best known feasible solutions and lower bounds for all the available instances. In addition, we show that 86 instances can be solved to optimality and the remaining open gap is below 0.5% for almost all the unsolved instances. (C) 2016 Elsevier Inc. All rights reserved.
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