Prediction of stock market index based on ISSA-BP neural network

Xin Liu, Junhong Guo, Hua Wang, Fan Zhang

Abstract: Highlights•Use the sine chaos model to initialize the sparrow population.•Adaptive weights are added in the discoverer location update mode.•Combining Gaussian mutation operator and reverse learning strategy.•Use the ISSA to optimize the initial weight and threshold of BPNN.