# Action unit classification for facial expression recognition using active learning and SVM

> Research article (Multimedia Tools and Applications, 2021) · cited 72× · AI/ML

**Wikidata**: [openalex:W3146434006](https://www.wikidata.org/wiki/openalex:W3146434006)  
**Source**: https://4ort.xyz/entity/action-unit-classification-for-facial-expression-recognition-using-active-learning-and-svm