The Problems and Its Analysis of BP Neural Network

This paper makes further research on BP neural network algorithm on the basis of the existing literature. It pointed out the problems in the inherent algorithm, as well as the causes were presented. This research also proposed the BP neural network was difficult to achieve the desired effect when applied to solve the forecasting problems, and then the reasons of that were analyzed, and this point was verified by sampling calculations. all these results will establish the foundation for further research of BP neural network algorithm.