title: A hybrid clustering and gradient descent approach for fuzzy modeling.
abstract: In this paper, a hybrid clustering and gradient descent approach is proposed for automatically constructing a multi-input fuzzy model where only the input-output data of the identified system are available. The proposed approach is composed of two steps: structure identification and parameter identification. In the process of structure identification, a clustering method is proposed to provide a systematic procedure to determine the number of fuzzy rules and construct an initial fuzzy model from the given input-output data. In the process of parameter identification, the gradient descent method is used to tune the parameters of the constructed fuzzy model to obtain a more precise fuzzy model from the given input-output data. Finally, two examples of nonlinear system are given to illustrate the effectiveness of the proposed approach.
authors.affiliation: Dept. of Electr. Eng., Tamkang Univ., Tamsui.
authors.forename: C C
authors.initials: CC
authors.lastname: Wong
authors.forename: C C
authors.initials: CC
authors.lastname: Chen