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基于抽样的因果图仿真推理算法研究 被引量:2

Research of Simulation Reasoning Algorithm in Causality Diagram Based on Sampling
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摘要 由于因果图的经典推理的计算复杂度是NP难的,因此其不便于推广和使用。基于因果图理论和MonteCarlo思想,提出了基于抽样的A-R Sampling和重要性抽样的因果图仿真推理算法。在故障诊断中的有效应用验证了方法是可行的。 Because the causality diagram's reasoning calculation is a NP problem,it is inconvenient in its popularization and application.This paper presented two simulation reasoning algorithms including A-R sampling and importance sampling based on causality diagram.The effective application in fault diagnosis shows the method is feasible.
作者 石庆喜
出处 《计算机科学》 CSCD 北大核心 2012年第10期251-253,281,共4页 Computer Science
基金 国家自然科学基金(60643006) 重庆市自然科学基金(2010BB2259)资助
关键词 因果图 仿真 重要性抽样 Causality diagram Simulation Important sampling
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