TY - JOUR
T1 - A fuzzy petri net-based expert system and its application to damage assessment of bridges
AU - Lee, Jonathan
AU - Liu, Kevin F.R.
AU - Chiang, Weiling
N1 - Funding Information:
Manuscript received January 16, 1998; revised November 8, 1998. This work was supported in part by the National Science Council, Taiwan, R.O.C., under Grants NSC 86-2213-E-008-008 and NSC 86-2211-E-008-015. This paper was recommended by Associate Editor A. Kandel.
PY - 1999
Y1 - 1999
N2 - 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 framework 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.
AB - 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 framework 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.
KW - Damage assessment
KW - Fuzzy petri net-based expert systems
KW - Fuzzy truth value
KW - Hierarchical fuzzy Petri nets
KW - Possibilistic entailment
UR - http://www.scopus.com/inward/record.url?scp=0032627201&partnerID=8YFLogxK
U2 - 10.1109/3477.764869
DO - 10.1109/3477.764869
M3 - 期刊論文
C2 - 18252310
AN - SCOPUS:0032627201
SN - 1083-4419
VL - 29
SP - 350
EP - 369
JO - IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
JF - IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
IS - 3
ER -