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Decision-Making Model under Risk Assessment Based on Entropy

机译:基于熵的风险评估决策模型

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Decision-making under risk assessment involves dealing with the matter of uncertainty, especially in projects such as tunnel construction. Risk control should include not only measures to reduce the possible consequence of incident, but also exploration measures (information collecting measures) to reduce the uncertainty of the incident. The classical risk assessment model in engineering is R = P × C which only takes account of the assessment and decision-making of possible consequences. It cannot provide theoretical guidance for taking exploration measures. The paper presents an advanced methodology to assess the effectiveness of exploration measures in decision-making. The methodology classifies risk into two attributes: hazard (expected value) and uncertainty (entropy). On this basis, a generalized model of decision-making under risk assessment is proposed. This model extends the use of the classical assessment model to a more general case. The reason for taking exploration measures and assessment of such measures’ effectiveness could be explained well by this developed model. This model can also serve as a descriptive model for many risk problems and provide a decision-making basis for a variety of risk types. Moreover, the assessment process and calculation method are applied with some case studies.
机译:风险评估下的决策涉及处理不确定性问题,尤其是在隧道建设等项目中。风险控制不仅应包括减少事故可能造成的后果的措施,还应包括减少事故不确定性的探索措施(信息收集措施)。工程中的经典风险评估模型为R = P×C,它仅考虑对可能后果的评估和决策。它不能为采取勘探措施提供理论指导。本文提出了一种先进的方法来评估勘探措施在决策中的有效性。该方法将风险分为两个属性:危害(期望值)和不确定性(熵)。在此基础上,提出了风险评估决策的通用模型。该模型将经典评估模型的使用扩展到了更一般的情况。这种发达的模型可以很好地解释采取勘探措施和评估这些措施的有效性的原因。该模型还可以用作许多风险问题的描述性模型,并为各种风险类型提供决策依据。此外,评估过程和计算方法还应用于一些案例研究。

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