Dear organizers,

I am confused about the dataset description and participation policies.

As stated in the Dataset description, the total number of cases is more than 1200 from at least 11 centers, and the total number of training cases is approximately 700 from 9 different centers, while the number of test cases is approximately 400 from at least 3 centers. However, only 10 centers are listed in the table. It seems that CHUV exists in HECTOR2022 but is missing this year. Moreover, only 7 centers are listed on the data download page (not 9 as stated).

In addition, could you please define the specific inputs for each task? For example, is HPV status available as a clinical indicator for Task 2 (Prognosis), and what clinical indicators are available during testing? Are RTDose and PlanningCT available as input for Task 3 (HPV prediction)? Are RTDose and PlanningCT available for all test cases or just a subset? This information is crucial when designing methods and preparing Docker containers.

For participation policies, I am wondering whether the pretrained foundation models are allowed? Is it allowed to use the pretrained weights, followed by fine-tuning with only the HECKTOR training data?

Best thanks!