PSA encoder v4 — joint C+H, C triplets 2× weighted (v4)

PSA domain fine-tuned encoder — joint C+H classifiers (contrastive, 5 epochs)

PSA domain fine-tuned encoder — joint C+H classifiers (contrastive, 5 epochs)

PSA domain fine-tuned encoder v2 (contrastive, 5 epochs)

PSA domain fine-tuned encoder v2 (contrastive, 5 epochs)

initial commit