4 Commits

Author	SHA1	Message	Date
Jiarui Li	29913106cb	Add get_sequence_lengths method to HealthDataset and create extract_sequence_lengths script for per-patient sequence length extraction	2026-01-19 14:39:13 +08:00
Jiarui Li	a90f22a865	Enhance HealthDataset with caching for event tensors and update evaluation scripts to use test subsets	2026-01-17 14:42:02 +08:00
Jiarui Li	01a96d37ea	Enhance DataLoader configuration and improve tensor transfer efficiency in Trainer class	2026-01-08 13:20:32 +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