用神经网络预测模型和灰色预测模型对1996-2000年GDP进行预测(Neural network prediction model and grey prediction model are used to predict GDP in 1996-2000 years)

基于卷积神经网络的手写汉字识别_matlab版本_可以识别509类手写汉字(Based on the _ handwritten Chinese characters recognition _matlab version convolutional neural network can identify 509 kinds of handwritten Chinese characters)

较新的优化算法，麻雀算法优化BP神经网络权值与阈值；(the key parameters of BP are choosed automatically by Sparrow Search Algorithm.)