@inproceedings{arivazhagan-etal-2023-hybrid,
    title = "Hybrid Hierarchical Retrieval for Open-Domain Question Answering",
    author = "Arivazhagan, Manoj Ghuhan  and
      Liu, Lan  and
      Qi, Peng  and
      Chen, Xinchi  and
      Wang, William Yang  and
      Huang, Zhiheng",
    editor = "Rogers, Anna  and
      Boyd-Graber, Jordan  and
      Okazaki, Naoaki",
    booktitle = "Findings of the Association for Computational Linguistics: ACL 2023",
    month = jul,
    year = "2023",
    address = "Toronto, Canada",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/2023.findings-acl.679/",
    doi = "10.18653/v1/2023.findings-acl.679",
    pages = "10680--10689"
}