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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

An analysis of formulations for the capacitated lot sizing problem with setup crossover

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Author(s):
Fiorotto, Diego Jacinto ; Jans, Raf ; de Araujo, Silvio Alexandre
Total Authors: 3
Document type: Journal article
Source: COMPUTERS & INDUSTRIAL ENGINEERING; v. 106, p. 338-350, APR 2017.
Web of Science Citations: 6
Abstract

The lot sizing problem with setup crossover is an extension of the standard big bucket capacitated lot sizing problem (CLSP). The general idea is that the first setup operation of each planning period can already start in the previous period, if not all the capacity is used in that previous period. This provides more flexibility in the planning and increases the possibility of finding feasible and better solutions compared to the standard assumption. Two different formulations have been presented in the literature to model a setup crossover. Since these formulations have not been compared directly to each other, we present a computational study to determine which is the best formulation. Furthermore, we explore ideas indicating that in one of the formulations from the literature it is not necessary to impose binary conditions on the crossover variables and we propose symmetry breaking constraints for both formulations from the literature. Finally, we quantify the value of this type of flexibility in a computational experiment and analyze which factors influence this value. (C) 2016 Published by Elsevier Ltd. (AU)

FAPESP's process: 13/00965-6 - Dantzig-Wolfe decomposition and Lagrangian relaxation: hybrid methods
Grantee:Diego Jacinto Fiorotto
Support Opportunities: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 14/01203-5 - Integrated lot sizing problems and related problems
Grantee:Silvio Alexandre de Araujo
Support Opportunities: Regular Research Grants
FAPESP's process: 10/16727-9 - LAGRANGE RELAXATION AND DANTZIG-WOLFE DECOMPOSITION: APPLICATION TO THE LOT-SIZING PROBLEM WITH PARALLEL MACHINES
Grantee:Diego Jacinto Fiorotto
Support Opportunities: Scholarships in Brazil - Doctorate