Topical data challenge meeting

Thursday 12 Feb 2026, 10:00 → 11:00 Europe/Zurich

• meeting to discuss dataset access companion Python package
• we would like a utility package for accessing the dataset
• Philip has an ML library for Collide-2V
  • Utilities for accessing data and examples of tasks
  • oriented towards pytorch lightning
  • https://github.com/pploner/foundation_model_testing/tree/main
• Can also take inspiration from ColliderML
  • https://opendatadetector.github.io/ColliderML/library/overview.html
  • https://github.com/OpenDataDetector/ColliderML
• discussion about the dataset structure
  • 100s of TBs size
    • to be accessible from hugging face and EOS
  • dataset is jagged arrays
  • it is nested:
    • each row is a collision event
    • each column is a feature
      • there can be different numbers of entries in each row
• we’ll need to provide a written specification