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Multi-objective evolutionary algorithm for solving energy-aware fuzzy job shop problems
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DOI：10.1007/s00500-020-04940-6.png)
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A growing concern about the environmental impact of manufacturing processes and in particular the associated energy consumption has recently driven some researchers within the scheduling community to consider energy costs in addition to more traditional performance-related measures, such as satisfaction of due-date commitments. Recent research is also devoted to narrowing the gap between real-world applications and academic problems by handling uncertainty in some input data. In this paper, we address the job shop scheduling problem, a well-known hard problem with many applications, using fuzzy sets to model uncertainty in processing times and with the target of finding solutions that perform well with respect to both due-date fulfilment and energy efficiency. The resulting multi-objective problem is solved using an evolutionary algorithm based on the NSGA-II procedure, where the decoding operator incorporates a new heuristic procedure in order to improve the solutions' energy consumption. This heuristic is based on a theoretical analysis of the changes in energy consumption when a solution is subject to slight changes, referred to as local right shifts. The experimental results support the theoretical study and show the potential of the proposal.
Keyword:
Job shop scheduling
Fuzzy durations
Multi-objective
Due dates
Energy efficiency
Genetic algorithm
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2.5
论文数:
1.0W
被引数:
2.1W
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An investigation into minimising total energy consumption and total weighted tardiness in job shops
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