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A Heuristic Methodology for Efficient Reduction of Large Multistate Event Trees

机译:有效减少大型多状态事件树的启发式方法

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摘要

This work proposes a new methodology for the management of event tree information used in the quantitative risk assessment of complex systems. The size of event trees increases exponentially with the number of system components and the number of states that each component can be found in. Their reduction to a manageable set of events can facilitate risk quantification and safety optimization tasks. The proposed method launches a deductive exploitation of the event space, to generate reduced event trees for large multistate systems. The approach consists in the simultaneous treatment of large subsets of the tree, rather than focusing on the given single components of the system and getting trapped into guesses on their structural arrangement.
机译:这项工作提出了一种用于复杂系统定量风险评估中的事件树信息管理的新方法。事件树的大小随系统组件的数量和可以找到每个组件的状态的数量呈指数增长。将其减少为一组易于管理的事件,可以促进风险量化和安全优化任务。所提出的方法启动了事件空间的演绎开发,以为大型多状态系统生成减少的事件树。该方法包括同时处理树的大子集,而不是专注于系统的给定单个组件并陷入对其结构安排的猜测。

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