Proud that this thing we started in 2010 that grew into what is not the #recsyschallenge is now highlighted as one of the key community events of @recsys.bsky.social
2010.recsyschallenge.com #recsys2026 #recsys2010

It's time to kick-off the challenge! ⚽️🦶

Today is the start of the #RecSysChallenge. This year's challenge is designed to promote a unified approach to behavior modeling. What does that mean?

Well... check out the challenge website! There is a new dataset to play with:
www.recsyschallenge.com/2025/