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应用科学学报 ›› 2002, Vol. 20 ›› Issue (1): 94-98.

• 论文 • 上一篇    下一篇

模糊规则中的不确定性推理研究

肖伟跃   

  1. 华中科技大学材料科学与工程学院, 湖北武汉 430074
  • 收稿日期:2000-10-29 修回日期:2001-05-06 出版日期:2002-03-31 发布日期:2002-03-31
  • 作者简介:肖伟跃(1958-),男,湖南益阳人,教授.

A Study on the Uncertainty lnference in Fuzzy Rule

XIAO Wei-yue   

  1. School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:2000-10-29 Revised:2001-05-06 Online:2002-03-31 Published:2002-03-31

PDF

109

被引次数

23

摘要： 针对模糊规则中以真值形式表达的不确定性推理问题进行了深入的研究.首先完整地分析了规则中的前提、结论、证据、条件、推论和结果这6类命题的不同含义;然后根据规则应用的实际情况,提出了一种新的逻辑组合关系——广义逻辑关系;最后定义了模糊子集匹配度和模糊规则匹配度,并给出了相应的条件真值和结果真值推理算法,从而形成了完整的通用不确定性推理模型.

关键词: 模糊规则, 不确定性推理, 匹配, 真值

Abstract: In this paper, the uncertainty problems with regard to fuzzy truth value in fuzzy rules are investigated in depth. First, the different meaning of six propositions is completely analyzed. Next, a new logic combination relation, the generalized logic relation, is proposed in accordance with actual conditions of fuzzy rule application. Finally, the fuzzy sets matching degree and the fuzzy rule matching degree are defined and the inference algorithm of condition truth value and result truth value is presented, and the generalized uncertainty inference model is formed.

Key words: truth value, match, fuzzy rule, uncertainty inference

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