Table 1 Statistics of the data set.
Data set | Student | Exercise | Conception | Record | Student average concept | Question average concept |
|---|---|---|---|---|---|---|
Assist0910 | 3000 | 18,000 | 120 | 270,000 | 1.2 | 170 |
Assist1213 | 22,400 | 53,000 | 265 | 260,000 | 1.1 | 200 |
EdNet | 5000 | 12,000 | 190 | 350,000 | 2.3 | 150 |
