# Heterogeneous spatio-temporal relation learning network for facial action unit detection

> Research article (Pattern Recognition Letters, 2022) · cited 12× · AI/ML

**Wikidata**: [openalex:W4308890007](https://www.wikidata.org/wiki/openalex:W4308890007)  
**Source**: https://4ort.xyz/entity/heterogeneous-spatio-temporal-relation-learning-network-for-facial-action-unit-detection