Quantifying the benefit of structural health monitoring: can the value of information be negative?
Quantifying the benefit of structural health monitoring: can the value of information be negative?
复制标题
量化结构健康监测的好处：信息的价值可以是负的吗？
DOI：
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发表时间：
2019
影响因子：
3.7
通讯作者：
D. Zonta
中科院分区：
文献类型：
--
作者：
A. Verzobio;D. Bolognani;J. Quigley;D. Zonta
摘要结构健康监测（SHM）的好处可以使用信息价值（VoI）的概念进行适当量化，该概念适用于SHM案例，即在有监测系统和没有监测系统的情况下操作结构的效用之间的差异。这一贡献的目的是证明，在决策过程中，两个不同的个人参与决策链，即业主和经理的结构，VoI可以是负的。事实上，即使两个决策者都是理性的，并且接触到相同的背景信息，他们的最佳行动也可能在安装监控系统后出现分歧，因为他们对风险的偏好不同：这种情况可能会产生负的VoI，这正好对应于所有者愿意支付的金额，以防止管理者使用监控系统。在本文中，从文献综述关于如何量化的VoI，提出了一个数学公式，它允许一个评估时，在特定的条件下，例如，适当的先验信息和效用函数的组合，VoI成为负的。此外，为了说明这个框架是如何工作的，一个假设的VoI的Streicker桥，普林斯顿大学校园的人行天桥配备了光纤传感系统进行评估：结果显示，如何决定一个负的VoI的主要因素是不同的风险偏好的两个决策者，所有者和管理者。
Abstract The benefit of Structural Health Monitoring (SHM) can be properly quantified using the concept of Value of Information (VoI), which is, applied to an SHM case, the difference between the utilities of operating the structure with and without the monitoring system. The aim of this contribution is to demonstrate that, in a decision-making process where two different individuals are involved in the decision chain, i.e. the owner and the manager of the structure, the VoI can be negative. Indeed, even if the two decision makers are both rational and exposed to the same background information, their optimal actions can diverge after the installation of the monitoring system due to their different appetite for risk: this scenario could generate a negative VoI, which corresponds exactly to the amount of money the owner is willing to pay to prevent the manager using the monitoring system. In this paper, starting from a literature review about how to quantify the VoI, a mathematical formulation is proposed which allows one to assess when and under which specific conditions, e.g. appropriate combination of prior information and utility functions, the VoI becomes negative. Moreover, to illustrate how this framework works, a hypothetical VoI is evaluated for the Streicker Bridge, a pedestrian bridge on the Princeton University campus equipped with a fiber optic sensing system: the results show how the predominant factor that determines a negative VoI is the different risk appetite of the two decision makers, owner and manager.
认知约束下的信息规避和高估：监管政策的原则和影响
DOI：
10.1016/j.ress.2020.106814
发表时间：
2020
期刊：
Reliability engineering systems safety
影响因子：
--
作者：
Pozzi, Matteo;Malings, Carl;Minca, Andreea
通讯作者：
Minca, Andreea
DOI：
10.1177/1475921711414232
发表时间：
2012-03
期刊：
Structural Health Monitoring
影响因子：
--
作者：
Eric B. Flynn;M. Todd;A. Croxford;B. Drinkwater;P. Wilcox
通讯作者：
Eric B. Flynn;M. Todd;A. Croxford;B. Drinkwater;P. Wilcox