A class of genetic algorithms for multiple-level warehouse layout problems

A class of genetic algorithms for multiple-level warehouse layout problems

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Article ID: iaor20022636
Country: United Kingdom
Volume: 40
Issue: 3
Start Page Number: 731
End Page Number: 744
Publication Date: Jan 2002
Journal: International Journal of Production Research
Authors: , ,
Keywords: programming: integer
Abstract:

A new kind of warehouse layout problem, the multiple-level warehouse layout problem, is investigated. Both horizontal and vertical travel costs need to be considered when making a layout. In the problem, unit travel costs are item-dependent and different items can be mixed in a cell. An IP model is proposed, which is shown to be NP-hard. An effective assignment method is presented and genetic algorithm heuristics are developed. Extensive computational experiments are conducted to verify the effectiveness of the algorithms.

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