# Dense Hierarchical Retrieval for Open-domain Question Answering

> Research article (Findings of the Association for Computational Linguistics: EMNLP 2021, 2021) · cited 21× · AI/ML

**Wikidata**: [openalex:W3209717315](https://www.wikidata.org/wiki/openalex:W3209717315)  
**Source**: https://4ort.xyz/entity/dense-hierarchical-retrieval-for-open-domain-question-answering