@inproceedings{liao-grishman-2011-document,
    title = "Can Document Selection Help Semi-supervised Learning? A Case Study On Event Extraction",
    author = "Liao, Shasha  and
      Grishman, Ralph",
    editor = "Lin, Dekang  and
      Matsumoto, Yuji  and
      Mihalcea, Rada",
    booktitle = "Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies",
    month = jun,
    year = "2011",
    address = "Portland, Oregon, USA",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/P11-2045/",
    pages = "260--265"
}