快速推理的知识库技术研究  

A Study on Rapid Inference of Knowledge Base

作　　者：刘宝赋[1] 张科[1] 李言俊[1] 廖志忠[2] 

机构地区：[1]西北工业大学,西安710072 [2]中国空空导弹研究院,洛阳471009

出　　处：《计算机工程与应用》2002年第20期60-62,227,共4页Computer Engineering and Applications

基　　金：航天创新基金资助

摘　　要：针对基于规则的专家系统推理速度慢的问题,提出了一种对规则形式的知识库进行转化的方法。该方法利用故障树技术,将规则库转化为一个索引库和若干个限定范围的规则库。前者用于快速推理,实现由征兆直接到结论的推理,而后者是与结论相关的规则集,需要解释时可以使用。该方法有效地缩小了专家系统的搜索空间,其计算简单,可以离线进行,适用于复杂系统的在线故障诊断。To the problem which reference is very slow in rule-based expert system, a transformation method to the rule-based knowledge base is proposed.Making use of the technical of fault tree,the method transforms the rule-based knowledge base into a index base and several restricted rule-based knowledge bases.The former can be used for rapid inferring, which realized the inference from symptoms to conclusion directly .The later are rule sets which are related with the conclusion,which can be used to explain the inferring process.The algorithm condenses the searching space of expert system efficiently.It is simple,and can be calculated offline,also it is suitable for online fault diagnosis of complicated system.

关 键 词：快速推理 知识库 专家系统 故障树 在线故障诊断 

分 类 号：TP182[自动化与计算机技术—控制理论与控制工程]