An improved self-organizing CPN-based fuzzy system with adaptive back-propagation algorithm

  • Authors:
  • Zhiming Zhang;Yue Wang;Ran Tao;Siyong Zhou

  • Affiliations:
  • Department of Electronic Engineering, Beijing Institute of Technology, Beijing, 100081, People's Republic of China;Department of Electronic Engineering, Beijing Institute of Technology, Beijing, 100081, People's Republic of China;Department of Electronic Engineering, Beijing Institute of Technology, Beijing, 100081, People's Republic of China;Department of Electronic Engineering, Beijing Institute of Technology, Beijing, 100081, People's Republic of China

  • Venue:
  • Fuzzy Sets and Systems - Fuzzy models
  • Year:
  • 2002

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Abstract

This paper describes an improved self-organizing CPN-based (Counter-Propagation Network) fuzzy system. Two self-organizing algorithms IUSOCPN and ISSOCPN, being unsupervised and supervised respectively, are introduced. The idea is to construct the neural-fuzzy system with a two-phase hybrid learning algorithm, which utilizes a CPN-based nearest-neighbor clustering scheme for both structure learning and initial parameters setting, and a gradient descent method with adaptive learning rate for fine tuning the parameters. The obtained network can be used in the same way as a CPN to model and control dynamic systems, while it has a faster learning speed than the original back-propagation algorithm. The comparative results on the examples suggest that the method is fairly efficient in terms of simple structure, fast learning speed, and relatively high modeling accuracy.