@article{weightedtemporaldecaylossforlearningwear, title = {Weighted Temporal Decay Loss for Learning Wearable PPG Data with Sparse Clinical Labels}, author = {Yunsung Chung and Keum San Chun and Migyeong Gwak and Han Feng and Yingshuo Liu and Chanho Lim and Viswam Nathan and Nassir Marrouche and Sharanya Arcot Desai}, year = {2026}, eprint = {2602.02917}, archivePrefix = {arXiv}, url = {https://arxiv.org/abs/2602.02917}, }