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Stochastic versus Deterministic Approach to Coordinated Supply Chain Scheduling

机译：随机与确定性方法协调供应链调度

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摘要

The purpose of this paper is to consider coordinated selection of supply portfolio and scheduling of production and distribution in supply chains under regional and local disruption risks. Unlike many papers that assume the all-or-nothing supply disruption pattern, in this paper, only the regional disruptions belong to the all-or-nothing disruption category, while for the local disruptions all disruption levels can be considered. Two biobjective decision-making models, stochastic, based on the wait-and-see approach, and deterministic, based on the expected value approach, are proposed and compared to optimize the trade-off between expected cost and expected service. The main findings indicate that the stochastic programming wait-and-see approach with its ability to handle uncertainty by probabilistic scenarios of disruption events and the much simpler expected value problem, in which the random parameters are replaced by their expected values, lead to similar expected performance of a supply chain under multilevel disruptions. However, the stochastic approach, which accounts for all potential disruption scenarios, leads to a more diversified supply portfolio that will hedge against a variety of scenarios.
机译：本文的目的是考虑在区域和局部扰动风险下，供应链的供应商的选择选择以及供应链中生产和分配的调度。与许多假设全有或全无供应中断模式的论文不同，在本文中，只有区域性中断属于全有或全无中断类别，而对于局部性中断，可以考虑所有中断级别。提出并比较了两种基于等待观方法的随机双目标决策模型和基于期望值方法的确定性双目标决策模型，以优化期望成本与期望服务之间的权衡。主要发现表明，随机编程的“观望”方法能够通过中断事件和更简单的期望值问题（用随机值替换为期望值）来处理不确定性，从而能够处理不确定性。多层次中断下供应链的绩效。但是，考虑到所有潜在中断情况的随机方法会导致供应组合更加多样化，从而可以应对各种情况。

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  • 来源
    《Mathematical Problems in Engineering》 |2017年第6期|3460721.1-3460721.15|共15页
  • 作者

    Sawik Tadeusz;

  • 作者单位

    AGH Univ Sci & Technol, Dept Operat Res, Al Mickiewicza 30, PL-30059 Krakow, Poland;

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