IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
LETTER
Optimization and stabilization of sequential learning in RBF network for nonlinear function approximation
W. S. LimJ. W. L. Yeoh
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ジャーナル フリー

2008 年 5 巻 23 号 p. 1030-1035

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抄録
This paper proposes a solution for inconsistency pruning of neurons within a sequential learning Radial Basis Function (RBF) Network. This paper adopts the concept that a specific RBF neuron which continuously exhibits low output in a sequence of training patterns does not justify the proposition that the neuron is insignificant to the whole function to be approximated. We establish additional criterions to provide protection from error in pruning RBF neurons within the hidden layer, which we prove is able to improve consistency and stability of neuron evolution. With such stability within the sequential learning process, we also show how the convergence speed of the network can be improved by reducing the number of consecutive observations required to prune a neuron in the hidden layer.
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© 2008 by The Institute of Electronics, Information and Communication Engineers
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