数据集

用户数

物品数

交互数

稀疏度%

Musical Instruments

903,058

112,132

17,31,700

99.983%

DigitalMusic

127,174

66,009

194,569

99.977%

VideoGames

1,539,732

71,909

1,967,985

99.982%

All Beauty

319,335

32,486

382,532

99.963%