# Hybrid System for Engagement Recognition During Cognitive Tasks Using a CFS + KNN Algorithm

> Research article (Sensors, 2018) · cited 14× · AI/ML

**Wikidata**: [openalex:W2899048458](https://www.wikidata.org/wiki/openalex:W2899048458)  
**Source**: https://4ort.xyz/entity/hybrid-system-for-engagement-recognition-during-cognitive-tasks-using-a-cfs-knn-algorithm