@inproceedings{tu-etal-2011-extracting,
    title = "Extracting Hierarchical Rules from a Weighted Alignment Matrix",
    author = "Tu, Zhaopeng  and
      Liu, Yang  and
      Liu, Qun  and
      Lin, Shouxun",
    editor = "Wang, Haifeng  and
      Yarowsky, David",
    booktitle = "Proceedings of 5th International Joint Conference on Natural Language Processing",
    month = nov,
    year = "2011",
    address = "Chiang Mai, Thailand",
    publisher = "Asian Federation of Natural Language Processing",
    url = "https://aclanthology.org/I11-1145/",
    pages = "1294--1303"
}