An Improved Radial Basis Function Neuron Network Based on the l1 Regularization
INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS(2023)
摘要
The radial basis function neural network (RBFNN) is a widely used tool for interpolation and prediction problems. In this paper, we propose to improve the traditional RBFNN by automatically identifying core neurons in the hidden layer, based on the l1 regularization. Our proposed approach will greatly reduce the number of neurons required, which will save the memory and also the computational cost. To determine the radial parameter ?? in the RBFs, we propose to use the K-fold cross-validation method. Moreover, the principal component analysis (PCA) method is used to reconstruct the distance between samples for high-dimensional data sets. Numerical experiments are provided to demonstrate the effectiveness of the proposed approach.
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关键词
l1 regularization,radial
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