中文说明：基于MEA优化BP神经网络。股市预测是金融研究的热门课题之一。股票市场受诸多因素的影响呈现出复 杂的非线性，基于线性分析的传统方法则显得有些力不从心。
English Description：
Optimization of BP neural network based on MEA. Stock market forecasting is one of the hot topics in financial research. The stock market is affected by many factors.