K2S Challenge Participation Rules


  • The models submitted and to be considered for this challenge must be fully  automated. The submissions will be evaluated using the weighted Sorensen-Dice coefficient across cartilage and bone on a held-out test set that will be under-sampled by 8x in the  equivalent pattern as training data and generates multi-class segmentation masks as output.  Relevant scripts for computing the evaluation metric and a template for creating the submission file will be shared.
  • No additional data allowed for training.
  • Members associated with UCSF may participate but are not eligible for awards and not listed in leaderboard.
  • Participants with the top weighted dice scores for multi-class segmentation (cartilage, bone) will be announced publicly on a leaderboard with potential cash prizes to be determined for the top 3 submissions.
  • The performance of all submissions will be made public on the leaderboard unless a specific team  withdraws from the competition. The top 3 scorers will be highlighted and will be awarded cash prizes.
  • Top 5 submissions will be invited to contribute to a full-length challenge summary research article.