Quality-Aware Wrist Photoplethysmography for Subject Independent Stress-State Monitoring: ECG-Referenced Validation and Selective Prediction
Oluwaseun Omotoso, Egberibo Paul Waredibamo (as listed on Zenodo)
Summary
WESAD wrist BVP (64 Hz) + wrist ACC (32 Hz) + chest ECG (700 Hz), 15 participants, 865 60-s windows (30-s step), baseline vs stress, LOSO. Raw PRV best macro-F1 0.838; PPG+ACC best AUROC 0.956 / AUPRC 0.933; full model AUROC 0.952 with lowest Brier 0.116. Selective prediction: error 13.33% at 79.8% coverage → 7.48% at 61.9%.
Key facts
- Form Factor
- wrist
- License
- Not stated
Reported benchmarks
Mental workload / stress
WESAD · AUROC ↑
LOSO 15 subj, 60-s windows, baseline vs stress; low-tier venue; selective prediction improves accepted-window F1
Updated: Oct 11, 2026
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