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Teaching PPG How not Who: Fixed-Effects Distillation from ECG

arXiv:2610.10662v1 Announce Type: new Abstract: ECG is widely used to teach PPG-only models, yet what it teaches is unexamined. Wearables are valued for tracking how a person's cardiovascular state changes, but ECG-to-PPG distillation mostly learns who the person is. A per-recording mean, the trait…

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  1. 2026-10-09 04:00 · arXiv cs.LG
    Teaching PPG How not Who: Fixed-Effects Distillation from ECG

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