The development of genetic algorithms for the finite capacity scheduling of complex products, with multiple levels of product structure

The development of genetic algorithms for the finite capacity scheduling of complex products, with multiple levels of product structure

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Article ID: iaor20051275
Country: Netherlands
Volume: 152
Issue: 1
Start Page Number: 215
End Page Number: 225
Publication Date: Jan 2004
Journal: European Journal of Operational Research
Authors: , ,
Keywords: scheduling, optimization: simulated annealing
Abstract:

In this paper, the development of a genetic algorithms based scheduling tool that takes into account multiple resource constraints and multiple levels of product structure is described. The genetic algorithms include a repair process that rectifies infeasible chromosomes that may be produced during evolution process. The algorithm includes problem encoding, chromosome representation and initialisation, genetic operation, repair process, fitness measurement and chromosome selection. The data structure and algorithm are detailed step by step. The tool generates schedules that minimises the penalties caused by early and late delivery of components, assemblies and final products. The method is applied using data obtained from a collaborating company that manufactures complex capital goods. It is demonstrated that the schedules produced perform significantly better than those produced by the company using a conventional planning method.

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