Competition Rules & Guidelines

Please read these rules carefully to ensure your participation is valid and your submissions are counted.

🎯 Challenge Structure

There are 3 distinct sub-challenges. Each sub-challenge is managed through its individual Codabench page—combined results will be listed on the leaderboard page here. You may participate in each separate out of domain challenge, or any combination of sub-challenges.
To participate in the shared challenge, you must participate in all 3 with the same team name. The winner of the combined challenge will be determined by taking the smallest sum of each team's individual challenge ranking, summed over the 3 separate challenges. For example, 1st place in challenge A, 2nd in B, and 4th place in challenge C would give you a score of 7—the smallest summed score wins!

Each team member may submit up to 20 entries per day, with a total limit of 200 submissions during the development phase. The organization reserves the right to increase these limits if resources permit.
Creating or using multiple accounts to bypass submission limits is strictly prohibited and will result in disqualification.
If your team uses the organization feature on Codabench, the team leader should submit the final public result.

At the end of the development phase, each team must select one and only one submission to publish on the leaderboard. Avoid submitting multiple entries to the leaderboard—only the submission from the designated team account will be evaluated in the final phase.
The team account used for that submission must match that submitted to the organizers. This entry will be tested on hidden datasets during the final phase to determine the team's overall ranking.

Winners will be announced here at the end of the challenge and invited to the SMood ML Challenge winners' ceremony at the FAIR in ML, AI Readiness, & Reproducibility (FARR) Workshop in April 2026.