Title: Using self-constructing recurrent fuzzy neural networks for identification of nonlinear dynamic systems

Authors: Qinghai Li; Ye Lin; Rui-Chang Lin; Hao-Fei Meng

Addresses: Department of Electronic Engineering, Zhejiang Industry and Trade Vocational College, Wenzhou 325003, China ' Department of Electronic Engineering, Zhejiang Industry and Trade Vocational College, Wenzhou 325003, China ' College of Mechanical and Electrical Engineering, Guangzhou Panyu Polytechnic, Guangzhou, 511483, China ' School of Artificial Intelligence and Automation, Huazhong University of Science and Technology, Wuhan 430074, China

Abstract: In this paper, the self-constructing recurrent fuzzy neural network (SCRFNN) is applied for nonlinear dynamical system identification (NDSI). The SCRFNN is a novel fuzzy neural network (FNN) by adding a recurrent path in each node of the hidden layer of self-constructing FNN, which contains two learning phases. Specifically, the structure learning is based on partition of the input space and the parameter learning is based on the supervised gradient descent method using a delta adaptation law. The SCRFNN can decrease the minimum firing strength in each learning cycle and the number of hidden neurons which is an FNN with high accuracy and compact structure compared with several other neural networks. The performance of SCRFNN in NDSI is further verified in simulation.

Keywords: self-constructing FNN; neural network; fuzzy system; nonlinear system; system identification; structure learning; parameter learning; recurrent path; gradient descent method.

DOI: 10.1504/IJMIC.2019.107461

International Journal of Modelling, Identification and Control, 2019 Vol.33 No.4, pp.378 - 386

Received: 23 Nov 2018
Accepted: 09 Apr 2019

Published online: 29 May 2020 *

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