Improvements to the conventional layer-by-layer BP algorithm

  • Authors:
  • Xu-Qin Li;Fei Han;Tat-Ming Lok;Michael R. Lyu;Guang-Bin Huang

  • Affiliations:
  • Institute of Intelligent Machines, Chinese Academic of Sciences, Hefei Anhui, China;Institute of Intelligent Machines, Chinese Academic of Sciences, Hefei Anhui, China;Information Engineering Dept., The Chinese University of Hong Kong, Shatin, Hong Kong;Computer Science & Engineering Dept., The Chinese University of Hong Kong, Shatin, Hong Kong;School of Electrical and Electronic Engineering, Nanyang Technological university, Singapore

  • Venue:
  • ICIC'05 Proceedings of the 2005 international conference on Advances in Intelligent Computing - Volume Part II
  • Year:
  • 2005

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Abstract

This paper points out some drawbacks and proposes some modifications to the conventional layer-by-layer BP algorithm. In particular, we present a new perspective to the learning rate, which is to use a heuristic rule to define the learning rate so as to update the weights. Meanwhile, to pull the algorithm out of saturation area and prevent it from converging to a local minimum, a momentum term is introduced to the former algorithm. And finally the effectiveness and efficiency of the proposed method are demonstrated by two benchmark examples.