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06a01d2893f01eb80b2a5b72133d372194e0d4ed
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2 Commits

Author SHA1 Message Date
Jiarui Li
06a01d2893 Add PiecewiseExponentialLoss class and update TrainConfig for new loss type 2026-01-08 12:45:31 +08:00
Jiarui Li
6984b254b3 Add loss functions and model architecture for time-to-event prediction 
- Implemented ExponentialNLLLoss and WeibullNLLLoss in losses.py for negative log-likelihood calculations.
- Developed TabularEncoder class in model.py for encoding tabular features.
- Created DelphiFork and SapDelphi classes in model.py for time-to-event prediction using transformer architecture.
- Added data preparation scripts in prepare_data.R and prepare_data.py for processing UK Biobank data, including handling field mappings and event data extraction.
 2026-01-07 21:32:00 +08:00