A fuzzy Petri net-based expert system and its application to damage assessment of bridges

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题名:	A fuzzy Petri net-based expert system and its application to damage assessment of bridges
作者:	Lee,J;Liu,KFR;Chiang,WL
贡献者:	資訊工程研究所
关键词:	UNCERTAINTY;LOGIC;APPROXIMATE;INFERENCE;RULES
日期:	1999
上传时间:	2010-06-29 20:14:34 (UTC+8)
出版者:	中央大學
摘要:	In this paper, a fuzzy Petri net approach to modeling fuzzy rule-based reasoning is proposed to bring together the possibilistic entailment and the fuzzy reasoning to handle uncertain and imprecise information. The three key components in our fuzzy rule-based reasoning-fuzzy propositions, truth-qualified fuzzy rules, and truth-qualified fuzzy facts-can be formulated as fuzzy places, uncertain transitions, and uncertain fuzzy tokens, respectively, Four types of uncertain transitions-inference, aggregation, duplication, and aggregation-duplication transitions-are introduced to fulfill the mechanism of fuzzy rule-based reasoning. A frame work of integrated expert systems based on our fuzzy Petri net, called fuzzy Petri net-based expert system (FPNES), is implemented in Java. Major features of FPNES include knowledge representation through the use of hierarchical fuzzy Petri nets, a reasoning mechanism based on fuzzy Petri nets, and transformation of modularized fuzzy rule bases into hierarchical fuzzy Petri nets. An application to the damage assessment of the Da-Shi bridge in Taiwan is used as an illustrative example of FPNES.
關聯:	IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS PART B-CYBERNETICS
显示于类别:	[資訊工程研究所] 期刊論文

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