Title: Swarm-based neighbourhood search for fuzzy job shop scheduling

Authors: You-lian Zheng, Yuan-xiang Li, De-ming Lei

Addresses: State Key Laboratory of Software Engineering, Wuhan University, Wuhan 430072, China; Faculty of Mathematics and Computer Science, Hubei University, Wuhan 430062, China. ' State Key Laboratory of Software Engineering, Wuhan University, Wuhan 430072, China. ' School of Automation, Wuhan University of Technology, Wuhan 430070, China

Abstract: In this paper, fuzzy job shop scheduling problems are considered and an efficient swarm-based neighbourhood search (SNS) is proposed, in which an ordered operation-based representation and the decoding procedure are given. It is proved that most of possible actual completion times lie in the cut of fuzzy completion time for each job. In SNS, adaptive swap operation and binary tournament selection are applied to update swarm. SNS is compared with some methods from literature and computational results demonstrate that SNS has promising advantage on fuzzy scheduling.

Keywords: fuzzy scheduling; job shop scheduling; swarm-based neighbourhood search; SNS; ordered operation list; adaptive swap operation; binary tournament selection; fuzzy numbers; fuzzy logic.

DOI: 10.1504/IJICA.2011.041915

International Journal of Innovative Computing and Applications, 2011 Vol.3 No.3, pp.144 - 151

Available online: 15 Aug 2011

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