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Order assignment and scheduling under processing and distribution time uncertainty
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DOI：10.1016/j.ejor.2022.05.033.png)
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摘要
En 中文
In response to increasingly fierce competition and highly customized demands, many companies adopt a distributed production model but manage their orders in a centralized manner. Coordination between multiple factories requires unified information and resources to provide a close match between supply and demand. One of the crucial tasks is to solve the order assignment and scheduling problem with un-certainties introduced by unexpected changes in upstream supply, labor supply, and transportation capac-ity. Managing uncertainties in production and distribution is important, as they can significantly interrupt and delay the timely and constant supply of orders if not appropriately managed. We address an order assignment and scheduling problem with direct distribution under uncertainties in processing and distri-bution time. The aim is to achieve a minimum of weighted sum cost and timeliness, which involves the optimization of the order assignments to multi-factory and production scheduling for orders at each site. We first formulate the problem as a two-stage stochastic programming model. To manage a large scale of possible scenarios, we apply a sample average approximation (SAA) method to approximate the model. We propose a novel model with fewer binary variables and big-M constraints. An exact logic-based Ben-ders decomposition (LBBD) method is developed to deal with practical-sized instances. Numerical results indicate the superiority of our new model and the LBBD method. Managerial implications are discussed to demonstrate its advantages and potential applicability in practice. (c) 2022 Elsevier B.V. All rights reserved.
Keyword:
Order assignment and scheduling
Stochastic optimization
Makespan
Tardiness
Logic-based Benders decomposition
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期刊
IF:
6
论文数:
2.2W
被引数:
6.4W
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