基于熵的需求不确定性降低评估方法

IF 0.1 4区 工程技术 Q4 ENGINEERING, MANUFACTURING Manufacturing Engineering Pub Date : 2014-04-24 DOI:10.2139/ssrn.2428870
Adam J. Fleischhacker, P. Fok
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引用次数: 1

摘要

我们提出了一种基于无分布熵的方法来计算减少不确定性努力的期望值,并在减少需求不确定性的背景下呈现我们的结果。与现有技术相比,该方法既不需要对需求进行抽样观察,也不需要对潜在需求分布进行先验假设。相反,利用最大熵原理在所有可能的需求分布上分配一个概率密度,可以对当前的不确定状态和潜在的未来不确定状态进行建模。我们证明了这种概率分配在直觉上是令人满意的,理论上是合理的,并且以一种与决策者当前信息(或缺乏信息)完全一致的方式完成。在不知道潜在需求分布的情况下评估不确定性减少的理论和数值结果进行了探索,并为现有的无分布文献做出了贡献。我们利用这些结果来回答需求管理中经常被忽视的问题:“进一步减少我的需求不确定性是否有价值,或者我是否根据我当前可用的信息采取行动?”''
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An Entropy Based Methodology for Valuation of Demand Uncertainty Reduction
We propose a distribution-free entropy-based methodology to calculate the expected value of an uncertainty reduction effort and present our results within the context of reducing demand uncertainty. In contrast to existing techniques, the methodology requires neither sampled observations of demand nor a priori assumptions regarding the underlying demand distribution. Rather, leveraging the maximum entropy principle to assign a probability density over all possible demand distributions enables modeling of both one's present state of uncertainty and one's potential future states of uncertainty. We demonstrate that this probability assignment is intuitively satisfying, theoretically justified, and done in a manner that is completely consistent with a decision maker's current information (or lack thereof). Theoretical and numerical results for valuing uncertainty reductions without knowing an underlying demand distribution are explored and contribute to the existing distribution free literature. We leverage these results to answer an often overlooked question in demand management: "Is there value in further reducing my demand uncertainty or do I act on my currently available information?''
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来源期刊
Manufacturing Engineering
Manufacturing Engineering 工程技术-工程:制造
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审稿时长
6-12 weeks
期刊介绍: Information not localized
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