Know Me by My Pulse: Toward Practical Continuous Authentication on Wearable Devices via Wrist-Worn PPG. - Wei Shao; Zequan Liang; Ruoyu Zhang; Ruijie Fang; Ning Miao; Ehsan Kourkchi; Setareh Rafatirad; Houman Homayoun; Chongzhou Fang (CoRR, 2025)