arXiv AI By Yifan Wang, Chenzhong Li

FemWear: A Parameter-Efficient Wearable Foundation Model for Women's Health

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FemWear is a parameter‑efficient wearable foundation model specifically tailored for women's health. It repurposes a pretrained multimodal wearable backbone by training only 239,236 encoder parameters—just 1.11% of the original 21.54M—using low‑rank residual adapters and causal task‑family heads to create a shared longitudinal representation for menstrual, symptom, affective, sleep/recovery, autonomic, activity, and pregnancy outcomes. Evaluations across six cohorts and 63 metrics show improvements in cycle‑phase macro‑F1 and reductions in mean absolute error for cramps, mood symptoms, and sleep problems, while maintaining the OpenMHC ability‑retention benchmark.

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arXiv AI
Sep 10

Learning transferable human physiology from two million hours of sleep with SleepFM-2

SleepFM-2 is a foundation model trained on 282,511 polysomnography recordings, covering over two million hours of multimodal sleep physiology. It outperforms its predecessor in disease prediction, sleep scoring, and event detection, and its representation improves performance across diverse tasks—including wearable sensing, subjective sleep reports, and transfer to other EEG modalities. When combined with age, sex, and BMI, the model meets stringent discrimination criteria for 215 EHR phenotypes, adding reproducible information beyond demographics for 155 of them.

By Rahul Thapa, Christopher Sun, William Theodor Lehn-Schioler, Sophia Claire Kivelson, Umaer Hanif, Hyatt Moore IV, Harrison G. Zhang, Hafsa Ahmed, Marcus Dige, Niels R. Lorenzen, Elisabeth Roxane M. Heremans, Adrien Specht, Ulysse Gimenez, Robin Guillard, Andreas Brink-Kjaer, James Zou, Emmanuel Mignot
arXiv Machine Learning
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When Adaptation Hurts: Split Sensitivity and Person-Level Negative Transfer in Federated Wearable Onboarding

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By Rahil Aftab, Vineet Kumar Rakesh, Soumya Mazumdar, Tapas Samanta
arXiv AI
Sep 7

BioSync: Transformer-Based Cross-Modal Fusion for a Multimodal Physiological Digital Biomarker

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By Seyed Mahmoud Sajjadi Mohammadabadi
arXiv AI
Sep 16

SOTER: A Generative Time-Series Foundation Model for Wearable Human Physiological Signals

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By Fangke Chen, Sirry Chen, Wei Chen, Zhongyu Wei