| Title | Started by | Date created | Latest post | Posts |
| About the testing data | liuw02 | Mar 15, 2021 | 3 years, 8 months | 3 |
| What's the final metric for ranking (track 1 and track 3)? | zhaominyiz | Mar 14, 2021 | 3 years, 8 months | 2 |
| Fact sheets | clever_wyc | Mar 11, 2021 | 3 years, 8 months | 3 |
| Is there a baseline or highly related/recommended literature for this competition? | sissuire | Feb 10, 2021 | 3 years, 9 months | 2 |
| About the submission error | image_restore | Feb 06, 2021 | 3 years, 9 months | 2 |