AI RESEARCH
Benchmarking Open-Source PPG Foundation Models for Biological Age Prediction
arXiv CS.LG
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ArXi:2603.14030v1 Announce Type: new A task-specific model trained on 212,231 UK Biobank subjects to predict vascular age from PPG (AI-PPG Age) fails on a different clinical population: predictions collapse to a narrow 38-67 year range regardless of true age. Meanwhile, a general-purpose foundation model with no age-related