Dynamic programming algorithms and Lagrangian lower bounds for a discrete lot streaming problem in a two-machine flow shop

Arianna Alfieri (), Shuyu Zhou (), Rosario Scatamacchia () and Steef L. van de Velde ()
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Arianna Alfieri: DIGEP, Politecnico di Torino
Shuyu Zhou: East China University of Science and Technology
Rosario Scatamacchia: DIGEP, Politecnico di Torino
Steef L. van de Velde: Erasmus University

4OR, 2021, vol. 19, issue 2, No 5, 265-288

Abstract: Abstract In this paper, we propose exact and heuristic solution approaches based on dynamic programming for an open lot streaming problem. We also present the first application of Lagrangian relaxation to compute strong lower bounds to such a problem. The application concerns the minimization of the total flow time for the discrete version of a single-job lot streaming problem from the literature in a two-machine flow shop with attached setup times. Computational results on benchmark instances illustrate the effectiveness of the proposed approaches and give evidence of the strength of the Lagrangian relaxation lower bounds.

Keywords: Lot streaming; Setup times; Flow shop; Total flow time; Lagrangian relaxation; Dynamic programming; 90-08; 90B35; 90C39 (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1007/s10288-020-00449-8

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