# Efficient information for recognizing pain in facial expressions

> Research article (European Journal of Pain, 2015) · cited 28× · AI/ML

**Wikidata**: [openalex:W2132180567](https://www.wikidata.org/wiki/openalex:W2132180567)  
**Source**: https://4ort.xyz/entity/efficient-information-for-recognizing-pain-in-facial-expressions