# Hierarchical Transformer: Unsupervised Representation Learning for Skeleton-Based Human Action Recognition

> Research article (2021 IEEE International Conference on Multimedia and Expo (ICME), 2021) · cited 57× · AI/ML

**Wikidata**: [openalex:W3170039146](https://www.wikidata.org/wiki/openalex:W3170039146)  
**Source**: https://4ort.xyz/entity/hierarchical-transformer-unsupervised-representation-learning-for-skeleton-based-human-action-recognition