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

关联规则挖掘用以发现商品销售中的顾客购买模式。本源代码给出了关联规则挖掘算法中最经典的算法Apriori算法的实现。-Association rule mining to find merchandise sales in customer buying patterns. Source code gives the association rules mining algorithm is the most classic Apriori algorithm.