Sequential inspection policy optimization for hierarchical multistate systems

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Boyuan Zhang, Yi-Xuan Zheng, Zhaoyi Liu, Yu Liu

Published: 01 Jan 2025, Last Modified: 06 Nov 2025Reliab. Eng. Syst. Saf. 2025EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: Highlights•A sequential inspection policy optimization framework is developed for hierarchical multistate systems.•Multilevel inspected objects and multiple inspection techniques are involved in this framework.•The sequential inspection policy optimization is formulated by a finite-horizon POMDP.•A tailored value iteration with condensed spaces is proposed to resolve the POMDP.•Several propositions are provided to validate the effectiveness of the tailored value iteration.