# A Comparison of Face-based and Interaction-based Affect Detectors in Physics Playground

> Research article (2015) · cited 17× · AI/ML

**Wikidata**: [openalex:W2470695087](https://www.wikidata.org/wiki/openalex:W2470695087)  
**Source**: https://4ort.xyz/entity/a-comparison-of-face-based-and-interaction-based-affect-detectors-in-physics-playground