# Heart Rate and Heart Rate Variability as Classification Features for Mental Fatigue Using Short-Term PPG Signals Via Smartphones Instead of ECG Recordings

> Research article (2021 13th International Conference on Communication Software and Networks (ICCSN), 2021) · cited 12× · AI/ML

**Wikidata**: [openalex:W3174458294](https://www.wikidata.org/wiki/openalex:W3174458294)  
**Source**: https://4ort.xyz/entity/heart-rate-and-heart-rate-variability-as-classification-features-for-mental-fatigue-using-short-term-ppg-signals-via-sma