# A New Descriptor for Smile Classification Based on Cascade Classifier in Unconstrained Scenarios

> Research article (Symmetry, 2021) · cited 10× · AI/ML

**Wikidata**: [openalex:W3159819734](https://www.wikidata.org/wiki/openalex:W3159819734)  
**Source**: https://4ort.xyz/entity/a-new-descriptor-for-smile-classification-based-on-cascade-classifier-in-unconstrained-scenarios