Abstract
A very simple radial basis function neural network (RBFNN) is investigated for hyperspectral remote sensing image classification. Its training can be analytically solved with a closed-form equation, and no parameter needs to be manually tuned. Its computational cost is much lower than the popular support vector machine (SVM). Surprisingly, such an RBFNN can achieve the performance that is similar to or even better than the SVM. By incorporating a simple spatial averaging filter or a Gaussian lowpass filter with negligible additional computational cost, classification accuracy can be further improved. Considering the large matrix inversion operation in the RBFNN when the number of training samples being very large, we also propose a parallel processing method to reduce computing time in matrix inversion.
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Communicated by Y.-S. Ong.
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Li, J., Du, Q. & Li, Y. An efficient radial basis function neural network for hyperspectral remote sensing image classification. Soft Comput 20, 4753–4759 (2016). https://doi.org/10.1007/s00500-015-1739-9
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DOI: https://doi.org/10.1007/s00500-015-1739-9