Journal
COMPUTERS & OPERATIONS RESEARCH
Volume 40, Issue 4, Pages 910-919Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cor.2012.11.002
Keywords
Genetic algorithms; Hybridization; Fix and optimize; Lot sizing; Backlogging; Multi-level
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Funding
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [2011/15534-5, 2011/15581-3, 2010/10133-0]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [11/15581-3] Funding Source: FAPESP
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The present paper proposes a new hybrid multi-population genetic algorithm (HMPGA) as an approach to solve the multi-level capacitated lot sizing problem with backlogging. This method combines a multi-population based metaheuristic using fix-and-optimize heuristic and mathematical programming techniques. A total of four test sets from the MULTILSB (Multi-Item Lot-Sizing with Backlogging) library are solved and the results are compared with those reached by two other methods recently published. The results have shown that HMPGA had a better performance for most of the test sets solved, specially when longer computing time is given. (C) 2012 Elsevier Ltd. All rights reserved.
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