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On-line evolution of Takagi-Sugeno fuzzy models

Research output: Contribution to conferenceConference paper

Published

Publication date16/09/2004
Number of pages67
Original languageEnglish

Conference

Conference2nd IFAC Workshop on Advanced Fuzzy/Neural Control
CityOulu, Finland
Period16/09/0417/09/04

Abstract

Evolving Takagi-Sugeno (eTS) fuzzy models and the method for their on-line identification has been recently introduced for both MISO and MIMO case. In this paper, the mechanism for rule-base evolution, one of the central points of the algorithm together with the recursive clustering and modified recursive least squares (RLS) estimation, is studied in detail. Different scenarios are considered for the rule base upgrade and modification. The radius of influence of each fuzzy rule is considered to be a vector instead of a scalar as in the original eTS approach, allowing different areas of the data space to be covered by each input variable. Simulation results using a well-known benchmark (Mackey-Glass chaotic time-series prediction) are presented. Copyright © 2004 IFAC

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