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To solve the problem that RBF neural network parameters are difficult to determine, an improved Canopy-K-means algorithm is proposed to optimize the RBF neural network. By using the density-based Canopy algorithm to roughly cluster the data, the cluster centers of the K-means algorithm are initialized, meanwhile the number of cluster centers is obtained, and the Canopy-K-means algorithm based on the density of samples (CKD) is used to optimize the RBF neural network. Three experiments, including nonlinear function approximation, classification of UCI website datasets, the effluent ammonia nitrogen (NH4-N) prediction in wastewater treatment process were used to verify the effectiveness of the algorithm. The results showed that CKDRBF network had high classification accuracy, strong approximation ability. © 2020 ACM.
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