Rule Specialization in Networks of Fuzzy Basis Functions
F. Casalino, Francesco Masulli, Alessandro Sperduti · Intelligent Automation & Soft Computing · 1998
The structure identification of adaptive fuzzy logic systems, realized as networks of Fuzzy Basis Functions (FBF's) and trained on numerical data, is studied for a handwritten character recognition problem. An FBF network with fewer rules than classes to be discriminated is unable to recognize some classes, while, when the number of rules is increased up to the number of classes to be discriminated, a sharp increase in the performance is observed. Experimental results point out that the behavior of the FBF network is closer to that of a competitive model showing a strong specialization of the fuzzy rules.