A penalty-shift-insertion-based algorithm to minimize total flow time in no-wait flow shops

Dipak Laha, Jatinder N D Gupta and Sagar U Sapkal
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Dipak Laha: Jadavpur University, Kolkata, India
Jatinder N D Gupta: University of Alabama in Huntsville, Huntsville, USA
Sagar U Sapkal: Jadavpur University, Kolkata, India

Journal of the Operational Research Society, 2014, vol. 65, issue 10, 1611-1624

Abstract: This paper proposes a penalty-shift-insertion (PSI)-based algorithm for the no-wait flow shop scheduling problem to minimize total flow time. In the first phase, a penalty-based heuristic, derived from Vogel’s approximation method used for the classic transportation problem is used to generate an initial schedule. In the second phase, a known solution is improved using a forward shift heuristic. Then the third phase improves this solution using a job-pair and a single-job insertion heuristic. Results of the computational experiments with a large number of randomly generated problem instances show that the proposed PSI algorithm is relatively more effective and efficient in minimizing total flow time in a no-wait flow shop than the state-of-the-art procedures. Statistical significance of better results obtained by the proposed algorithm is also reported.

Date: 2014
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