The Importance Of An Adaptive Gain Variation Method In
Back-propagation Neural Network Learning Algorithms
Author(s)
R. S. Ransing, M. R. Ransing & R. W. Lewis
Abstract
The importance of an adaptive gain variation
method in back-propagation neural network
learning algorithms
R. S. Ransing, M. R. Ransing & R. W. Lewis
Civil and Computational Engineering Centre,
University of Wales Swansea, UK
Abstract
In a 'feed forward' algorithm, the slope of the activation function is directly
influenced by a parameter referred to as 'gain'. In this paper, the influence of the
variation of 'gain' on the learning ability of a neural network is analysed. Multi
layer feed forward neural networks have been assessed. Physical interpretation of
the relationship between the gain value and learning rate and weight values is
given. Instead of a constant 'gain' value, we propose an algorithm to change the
gain value adaptively for each node. The efficacy of the proposed method is
verified by means of simulation on a function approximation problem using
sequential mode of training. The results show that the proposed method
considerably improves the learning speed of the general back-p
Keywords
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