Dynamic non-Singleton fuzzy logic systems for nonlinear modeling

  • Authors:
  • G. C. Mouzouris;J. M. Mendel

  • Affiliations:
  • Dept. of Electr. Eng. Syst., Univ. of Southern California, Los Angeles, CA;-

  • Venue:
  • IEEE Transactions on Fuzzy Systems
  • Year:
  • 1997

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Abstract

We investigate dynamic versions of fuzzy logic systems (FLSs) and, specifically, their non-Singleton generalizations (NSFLSs), and derive a dynamic learning algorithm to train the system parameters. The history-sensitive output of the dynamic systems gives them a significant advantage over static systems in modeling processes of unknown order. This is illustrated through an example in nonlinear dynamic system identification. Since dynamic NSFLS's can be considered to belong to the family of general nonlinear autoregressive moving average (NARMA) models, they are capable of parsimoniously modeling NARMA processes. We study the performance of both dynamic and static FLSs in the predictive modeling of a NARMA process