ECG2 min read
Teaching PPG How not Who: Fixed-Effects Distillation from ECG
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.
By Zhongli Wu, Zhuangzhi Gao, Yuankai Wang, Gregory Y. H. Lip, Bilal H. Kirmani, Yalin ZhengarXiv cs.LG
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Originally published by arXiv cs.LG on Oct 9, 2026.
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