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Type: Artigo de periódico
Title: An impulse control problem of a production model with interruptions to follow stochastic demand
Author: Salles, JLF
do Val, JBR
Abstract: The paper deals with the stochastic optimal intervention problem which arises in a production & storage system involving identical items, The requests for items arrive at random and the production of an item can be interrupted during production to meet the corresponding demand, The operational costs considered are due to the stock/backlog, running costs and set up costs associated to interruptions and re-initializations. The process presents distinct behaviour on each of two disjoint identical subsets of the state space, and the state process can only be transferred from one subset to the other by interventions associated to interruptions/re-initializations. A characterization is given in terms of piecewise deterministic Markov process, which explores the aforementioned structure, and a method of solution with assured convergence, that does not require any special initialization, is provided. Additionally, we demonstrate that under conditions on the data, the optimal policy is to produce the item completely in a certain region of the state space of low stock level. (C) 2001 Elsevier Science B,V, AU rights reserved.
Subject: Markov processes
decision theory
manufacturing systems
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/S0377-2217(00)00117-X
Date Issue: 2001
Appears in Collections:Unicamp - Artigos e Outros Documentos

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