基于MDP的诊断策略构建方法
Beijing Hangkong Hangtian Daxue xuebao(2016)
Abstract
针对传统方法忽略测试通过的不确定性因素,缺乏长周期寻优机制,难以在复杂测试系统中生成全局最优诊断策略的问题,提出了一种基于马尔可夫决策过程(MDP)的诊断策略构建方法。该方法将故障检测、隔离的过程表述为系统故障状态的马尔可夫过程,通过引入折扣因子与目标权重,构造了综合效用准则函数的无限折扣模型,并利用策略迭代算法求解出全局平稳最优诊断策略。实例表明,该方法充分考虑了测试通过的不确定性,可实现全局平稳策略寻优,能够有效地指导测试系统实现快速故障检测和隔离。
MoreKey words
diagnostic strategy,Markov decision processes (MDP),fault detection,policy iteration algorithm,strategy optimization
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- Pretraining has recently greatly promoted the development of natural language processing (NLP)
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