@inproceedings{iida-etal-2019-attention,
    title = "Attention over Heads: A Multi-Hop Attention for Neural Machine Translation",
    author = "Iida, Shohei  and
      Kimura, Ryuichiro  and
      Cui, Hongyi  and
      Hung, Po-Hsuan  and
      Utsuro, Takehito  and
      Nagata, Masaaki",
    editor = "Alva-Manchego, Fernando  and
      Choi, Eunsol  and
      Khashabi, Daniel",
    booktitle = "Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics: Student Research Workshop",
    month = jul,
    year = "2019",
    address = "Florence, Italy",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest_wac_2008/P19-2030/",
    doi = "10.18653/v1/P19-2030",
    pages = "217--222"
}