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2026-09-01 ve2e reusable PI CAI vxData samples

Added generic model loading and reusable vxData-to-PI-CAI sample generation with a thin benchmark.

Work Done

  • Replaced the ISUP benchmark with a PI-CAI benchmark and moved vxData cohort preparation, expert lesion-target selection, materialization, and canonical model preprocessing into generate_picai_sample_from_vxdata.
  • Split the reusable PI-CAI package into schemas, data generation, and model inference modules. Added batched prediction for full-cohort inputs.
  • Replaced the EMA-only ClearML loader with load_clearml_model, which normalizes embedded configs and loads prediction weights from both EMA and main checkpoints.
  • Validated recent real ClearML EMA model b745c96bbb9f4b50a45bd96d26f201af and main model a5677ed0e22a4d669f2d9c2c72ac5ab4.
  • Pushed ve2e commits 9bcf0c91 and 91c5a234 to feat/isup-inference.
  • Completed real workflow run-ve2e-picai-source-fix-ptpb2 across 46 eligible cases, including vxData preparation, preprocessing, target construction, inference, shape alignment, finite maps, and probability bounds.

Lessons Learned: Pitfalls

  • Lightning load_from_checkpoint restored training-only state and rejected a missing loss_fn.weight. Inference should load only module.model prediction weights.
  • Some otherwise eligible vxData cases have no biopsy/RPE provenance. They cannot populate a target schema restricted to those two values and must be excluded explicitly.
  • Taking the first patient IDs from the global non-training query can select no patients from pipeline-configured datasources. A distributed sample across the query ordering produced a representative smoke cohort.

Lessons Learned: Improvements

  • Document that PI-CAI target generation requires non-null biopsy/RPE provenance in addition to expert lesion masks.
  • Keep a small cluster smoke workflow for reusable inference that selects a privacy-safe distributed cohort and validates real main and EMA checkpoints.
  • Treat ClearML main and EMA payloads as packaging differences only; normalize both to model-only state before inference.
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