Document details

A column generation approach to the discrete lot sizing and scheduling problem on parallel machines

Author(s): Duarte, António ; Carvalho, J.M. Valério de

Date: 2015

Persistent ID: http://hdl.handle.net/10198/17145

Origin: Biblioteca Digital da UPB

Subject(s): Applied mathematics; Optimization; Systems theory


Description

In this work, we study the discrete lot sizing and scheduling problem (DSLP) in identical parallel resources with (sequence-independent) setup costs and inventory holding costs. We propose a Dantzig-Wolfe decomposition of a known formulation and describe a branch-and-price and column generation procedure to solve the problem to optimality. The results show that the lower bounds provided by the reformulated model are stronger than the lower bounds provided by the linear programming (LP) relaxation of the original model.

Document Type Conference paper
Language Portuguese
Contributor(s) Biblioteca Digital da UPB
CC Licence
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