销售预测系统，可以根据历史销售数据对未来的销售量进行有效预测，采用BP神经网络对预测模型进行训练，可以达到不错效果-sales forecasting system, based on historical sales data for the future effective sales forecasts, BP neural network model to predict the training, they can achieve good results

销售预测系统，可以根据历史销售数据对未来的销售量进行有效预测，采用BP神经网络对预测模型进行训练，可以达到不错效果 -Sales forecasting system, can be based on historical sales data on sales to predict the future, using BP neural network prediction model for training, can achieve good Xiao Guo

Use fuzzy logic to solve TSP(traveling sales man)problem. Note that the fuzzy system can only find today s price and today s MAD(prediction of stock tendency, positive or negative or zero)-Use fuzzy logic to solve TSP (traveling sales man) problem. N