# Automatic Annotation for Human Activity Recognition in Free Living Using a Smartphone

> Research article (Sensors, 2018) · cited 60× · AI/ML

**Wikidata**: [openalex:W2833792958](https://www.wikidata.org/wiki/openalex:W2833792958)  
**Source**: https://4ort.xyz/entity/automatic-annotation-for-human-activity-recognition-in-free-living-using-a-smartphone