@inproceedings{liu-etal-2012-topical,
    title = "Topical Word Trigger Model for Keyphrase Extraction",
    author = "Liu, Zhiyuan  and
      Liang, Chen  and
      Sun, Maosong",
    editor = "Kay, Martin  and
      Boitet, Christian",
    booktitle = "Proceedings of {COLING} 2012",
    month = dec,
    year = "2012",
    address = "Mumbai, India",
    publisher = "The COLING 2012 Organizing Committee",
    url = "https://preview.aclanthology.org/fix-sig-urls/C12-1105/",
    pages = "1715--1730"
}