Study on the fuzzy Petri net and the expert system, this paper build up a fuzzy Petri net model for expert system, and a backward reasoning algorithm is proposed based on the model. Using an instance to test the algorithm at last, the result shows that it has the ability of parallel reasoning for complex expert system, and it is high-efficiency and is easy to implement.
['Zhang Baiyi', 'Cui Shang-sen']
A Parallel Backward Reasoning Study Using Fuzzy Petri Net