python实现BP神经网络回归预测模型，使用BP神经网络的实现手写数字识别，一万字报告

python实现BP神经网络回归预测模型，使用BP神经网络的实现手写数字识别，一万字报告，matlab. Although BP neural network performs well in handwritten numeral recognition, it can not be ignored that the weights and thresholds of BP neural network are initialized randomly, which is easy to lead to unstable fitting effect. Moreover, it is easy to make the training of weights and thresholds of BP neural network fall into local area because of gradient descent Optimum. So in this experiment, GA genetic algorithm is used to optimize the in