数据集 | train | test | items | avg.len | ratio.bi |
Diginetica | 719,470 | 60,858 | 43,097 | 5.12 | 12.95% |
Tmall | 351,268 | 25,898 | 40,728 | 6.69 | 27.90% |
Last.fm | 2,837,330 | 672,833 | 38,615 | 11.78 | 20.14% |