Wrist PPG Stress Classification on WESAD: Interval Features Compared with Beat-Shape and Wavelet Features
Mahima Thapa
· 2026
PPGDOI
Summary
WESAD, 15 subjects: Empatica E4 BVP at 64 Hz, baseline vs Trier Social Stress Test.
Key facts
- Form Factor
- wrist
Reported benchmarks
Mental workload / stress
WESAD · AUROC ↑
#3 of 5
0.965
LOSO pooled AUC, BVP 64 Hz 60 s windows, stress from 9 subjects; post hoc; interval-only 0.911–0.933; RF 0.972 transductive z-scoring (not ranked)
Updated: Oct 8, 2026