Task A — Ejection Fraction Estimation

LVEF regression + EF<=40% clinical gate from paired EchoJEPA + HuBERT-ECG embeddings, with the deployment-risk analyses (missing-modality robustness, fairness, calibration). Current active scope. Pipeline code is merged; what remains is producing canonical results on the 1,208-row synchronized manifest.

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Task A — Ejection Fraction Estimation

[D07] Paired cohort recovery — 4,103 shared subjects to 1,208 rows

[I07] Access check for the canonical rerun (PhysioNet + HF gate)

[E13] Patient-level k-fold in place of the single holdout

[W09] Restate the paper from the canonical run

[W08] Rebuild paper failure figures from real artifacts (currently unlabeled synthetic demo)

[E12] Pooled vs clip-level echo tokens — the deferred half of the #69 ablation

E13: Add patient-level k-fold cross-validation

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