Table 1
Levels of publishing venue.
| Criteria | rank of the publishing venue |
|---|---|
| Top journals and top conferences, like Cell Research, Nature, Science, ACM Transactions, IEEE Transactions, etc. | 4 |
| International journals and conferences (SCI or EI indexed), like Journal of Semiconductors, Advances In Psychological Science, books, etc. | 3 |
| Other journals and conferences | 2 |
| Magazines and articles | 1 |
| Others | 0 |
Figure 1
Average precision of all users over time.
Figure 2
Average NDCG of all users over time.