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The Scientific World Journal
Volume 2014, Article ID 630280, 15 pages
http://dx.doi.org/10.1155/2014/630280
Research Article

Discrete Bat Algorithm for Optimal Problem of Permutation Flow Shop Scheduling

College of Information Science and Engineering, Guangxi University for Nationalities, Nanning, Guangxi 530006, China

Received 22 June 2014; Accepted 30 July 2014; Published 27 August 2014

Academic Editor: Shifei Ding

Copyright © 2014 Qifang Luo et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A discrete bat algorithm (DBA) is proposed for optimal permutation flow shop scheduling problem (PFSP). Firstly, the discrete bat algorithm is constructed based on the idea of basic bat algorithm, which divide whole scheduling problem into many subscheduling problems and then NEH heuristic be introduced to solve subscheduling problem. Secondly, some subsequences are operated with certain probability in the pulse emission and loudness phases. An intensive virtual population neighborhood search is integrated into the discrete bat algorithm to further improve the performance. Finally, the experimental results show the suitability and efficiency of the present discrete bat algorithm for optimal permutation flow shop scheduling problem.