Abstract
In this paper, a symbolic rule learning and extraction algorithm is proposed for integration with the Fuzzy Min-Max neural network (FMM). With the rule extraction capability, the network is able to overcome the “black-box” phenomenon by justifying its predictions with fuzzy IF-THEN rules that are comprehensible to the domain users. To assess the applicability of the resulting network, a data set comprising real sensor measurements for detecting and diagnosing the heat transfer conditions of a Circulating Water (CW) system in a power generation plant is collected. The rules extracted from the network are found to be compatible with the domain knowledge as well as the opinions of domain experts who are involved in the maintenance of the CW system. Implication of the FMM neural network with the rule extraction capability as a useful fault detection and diagnosis tool is discussed.
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