# SFace: Sigmoid-Constrained Hypersphere Loss for Robust Face Recognition

> Research article (IEEE Transactions on Image Processing, 2021) · cited 125× · AI/ML

**Wikidata**: [openalex:W3119687891](https://www.wikidata.org/wiki/openalex:W3119687891)  
**Source**: https://4ort.xyz/entity/sface-sigmoid-constrained-hypersphere-loss-for-robust-face-recognition