@inproceedings{zheng-etal-2020-bert,
    title = "{BERT-QE}: {C}ontextualized {Q}uery {E}xpansion for {D}ocument {R}e-ranking",
    author = "Zheng, Zhi  and
      Hui, Kai  and
      He, Ben  and
      Han, Xianpei  and
      Sun, Le  and
      Yates, Andrew",
    editor = "Cohn, Trevor  and
      He, Yulan  and
      Liu, Yang",
    booktitle = "Findings of the Association for Computational Linguistics: EMNLP 2020",
    month = nov,
    year = "2020",
    address = "Online",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/2020.findings-emnlp.424/",
    doi = "10.18653/v1/2020.findings-emnlp.424",
    pages = "4718--4728"
}