Reduced-set vector-based interval type-2 fuzzy neural network
WSEAS Transactions on Computers
Reduced-set vector learning based on hybrid kernels for interval type 2 fuzzy modeling
ICS'08 Proceedings of the 12th WSEAS international conference on Systems
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New interpretable kernels created by conjoining the univariate fuzzy membership functions with a t-norm operator are proposed in this paper. Based on support vector regression with presented kernel, a learning algorithm consisting of two phases is developed to construct fuzzy system. In the first phase, the support vector regression learning model provides architecture to extract support vectors for generating fuzzy rules, and then characterizes the support vector expansion in TS fuzzy inference procedure through simple equivalent transform. In the second phase, a reduced set method is employed to simplify the obtained fuzzy model, and a bottom-up strategy with relative degree of sharing is suggested to obtain a transparent rule base, at the same time preserves the accuracy and generalization performance of the fuzzy model. Finally, the performance of the proposed fuzzy model is compared with hierarchical clustering based on using a self-organizing network modeling methods.