# Machine learning model of facial expression outperforms models using analgesia nociception index and vital signs to predict postoperative pain intensity: a pilot study

> Research article (Korean journal of anesthesiology, 2024) · cited 11× · AI/ML

**Wikidata**: [openalex:W4390599883](https://www.wikidata.org/wiki/openalex:W4390599883)  
**Source**: https://4ort.xyz/entity/machine-learning-model-of-facial-expression-outperforms-models-using-analgesia-nociception-index-and-vital-signs-to-pred