推荐系统输入表格数据

[{"title":"（ 7 个子文件 67KB ） 推荐系统输入表格数据","children":[{"title":"Recommender Systems","children":[{"title":"所有用户对其看过的节目的评分矩阵.xlsx <span style='color:#111;'> 9.56KB </span>","children":null,"spread":false},{"title":"所有用户看过的节目及所属类型的01矩阵.xlsx <span style='color:#111;'> 10.38KB </span>","children":null,"spread":false},{"title":"用户A对于其三个月来所看过节目的评分.xls <span style='color:#111;'> 30.50KB </span>","children":null,"spread":false},{"title":"用户C对于其三个月来所看过节目的评分.xls <span style='color:#111;'> 31.00KB </span>","children":null,"spread":false},{"title":"备选推荐节目集及所属类型01矩阵.xlsx <span style='color:#111;'> 25.22KB </span>","children":null,"spread":false},{"title":"用户B对于其三个月来所看过节目的评分.xls <span style='color:#111;'> 31.00KB </span>","children":null,"spread":false},{"title":"备选推荐节目集及所属类型.xlsx <span style='color:#111;'> 18.58KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]