In recent years,data modelling is widely applied in areas of data mining and forecasting process,etc.Neural network becomes an important tool in solving many problems due to its inherent good particularities and plays a significant role in further exploring the phenomenon such as nonlinear, etc.How to construct an excellent artificial neural network based on actual problems is a knotty problem for us.In the paper,Genetic Programming is used to optimize the activation function of neural network.In this way a...