YouChoose user item temporal bipartite network processed

This data set was first release by RecSys 2015 conference challenge. There is a link if user has bought the item. The time is converted in days.该数据集由2015年推荐系统大会挑战赛（RecSys 2015 Conference Challenge）首次发布。若用户已购买对应商品，则可获取相关链接。所有时间均已转换为以天为单位的计量形式。