@inproceedings{li-etal-2009-incremental,
    title = "Incremental {HMM} Alignment for {MT} System Combination",
    author = "Li, Chi-Ho  and
      He, Xiaodong  and
      Liu, Yupeng  and
      Xi, Ning",
    editor = "Su, Keh-Yih  and
      Su, Jian  and
      Wiebe, Janyce  and
      Li, Haizhou",
    booktitle = "Proceedings of the Joint Conference of the 47th Annual Meeting of the {ACL} and the 4th International Joint Conference on Natural Language Processing of the {AFNLP}",
    month = aug,
    year = "2009",
    address = "Suntec, Singapore",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest_wac_2008/P09-1107/",
    pages = "949--957"
}