다단계 퍼지추론 시스템의 퍼지 페트리네트 모델링과 근사추론

Multistage Fuzzy Production Systems Modeling and Approximate Reasoning Based on Fuzzy Petri Nets

In this work, a fuzzy petri net model for modeling a general form of fuzzy production system which consists of chaining fuzzy production rules and so requires multistage reasoning process is presented. For the obtained fuzzy petri net model, the net will be transformed into some matrices, and also be systematically led to an algebraic form of a state equation. Since it is fond that the approximate reasoning process in fuzzy systems corresponds to the dynamic behavior of the fuzzy petri net, it is further shown that the multistage reasoning process can be carried out by executing the state equation.