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Operational Models of Infrastructure Resilience

机译：基础架构弹性的运营模型

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摘要

We propose a definition of infrastructure resilience that is tied to the operation (or function) of an infrastructure as a system of interacting components and that can be objectively evaluated using quantitative models. Specifically, for any particular system, we use quantitative models of system operation to represent the decisions of an infrastructure operator who guides the behavior of the system as a whole, even in the presence of disruptions. Modeling infrastructure operation in this way makes it possible to systematically evaluate the consequences associated with the loss of infrastructure components, and leads to a precise notion of operational resilience that facilitates model verification, validation, and reproducible results. Using a simple example of a notional infrastructure, we demonstrate how to use these models for (1) assessing the operational resilience of an infrastructure system, (2) identifying critical vulnerabilities that threaten its continued function, and (3) advising policymakers on investments to improve resilience.
机译：我们提出了基础架构弹性的定义，该定义与作为交互组件系统的基础架构的操作（或功能）相关，并且可以使用定量模型进行客观评估。具体来说，对于任何特定系统，我们使用系统运行的定量模型来表示基础结构运营商的决策，即使在存在中断的情况下，该决策也可以指导整个系统的行为。通过这种方式对基础架构操作进行建模，可以系统地评估与基础架构组件丢失相关的后果，并可以得出精确的操作弹性概念，从而有助于模型验证，验证和可再现的结果。我们以一个简单的概念性基础架构示例为例，演示了如何使用这些模型来（1）​​评估基础架构系统的运营弹性；（2）识别威胁其持续功能的关键漏洞；（3）为决策者提供建议提高弹性。

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