2 papers
cs.LG2026
Teaching PPG How not Who: Fixed-Effects Distillation from ECG
Zhongli Wu, Zhuangzhi Gao, Yuankai Wang +3
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 distil…
cs.LG2026
P2E-VQ: ECG-linked representation augmentation for PPG via discrete patch retrieval
Zhongli Wu, Zhuangzhi Gao, He Zhao +8
Photoplethysmography (PPG) is widely used in consumer wearables because of its low cost and ease of acquisition. However, unlike electrocardiography (ECG), PPG measures peripheral…