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PubMed · 12850028

Numerical solution of elliptic partial differential equation using radial basis function neural networks.

Li Jianyu·Luo Siwei·Qi Yingjian·Huang Yaping
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Abstract

In this paper a neural network for solving partial differential equations is described. The activation functions of the hidden nodes are the radial basis functions (RBF) whose parameters are learnt by a two-stage gradient descent strategy. A new growing RBF-node insertion strategy with different RBF is used in order to improve the net performances. The learning strategy is able to save computational time and memory space because of the selective growing of nodes whose activation functions consist of different RBFs. An analysis of the learning capabilities and a comparison of the net performances with other approaches have been performed. It is shown that the resulting network improves the approximation results.

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Neural Networks, ComputerNumerical Analysis, Computer-AssistedJournal ArticleResearch Support, Non-U.S. Gov't

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Li Jianyu, Luo Siwei, Qi Yingjian, Huang Yaping. Numerical solution of elliptic partial differential equation using radial basis function neural networks.. https://doi.org/10.1016/s0893-6080(03)00083-2

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