Learning rule for TSK fuzzy logic systems using interval type-2 fuzzy subtractive clustering

  • Authors:
  • Binh Huy Pham;Hai Trung Ha;Long Thanh Ngo

  • Affiliations:
  • Department of Information Systems, Faculty of Information Technology, Le Quy Don Technical University, Hanoi, Vietnam;Department of Information Systems, Faculty of Information Technology, Le Quy Don Technical University, Hanoi, Vietnam;Department of Information Systems, Faculty of Information Technology, Le Quy Don Technical University, Hanoi, Vietnam

  • Venue:
  • SEAL'12 Proceedings of the 9th international conference on Simulated Evolution and Learning
  • Year:
  • 2012

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Abstract

The paper deals with an approach to model TSK fuzzy logic systems (FLS), especially interval type-2 TSK FLS, using interval type-2 fuzzy subtractive clustering (IT2-SC). The IT2-SC algorithm is combined with least square estimation (LSE) algorithms to pre-identify a type-1 FLS form from input/output data. Then, an interval type-2 TSK FLS can be obtained by considering the membership functions of its existed type-1 counterpart as primary membership functions and assigning uncertainty to cluster centroids, standard deviation of Gaussian membership functions and consequence parameters. Results is shown in comparison with the approach based on type-1 subtractive clustering algorithm.