@inproceedings{cao-etal-2015-improving,
    title = "Improving Event Detection with Active Learning",
    author = "Cao, Kai  and
      Li, Xiang  and
      Fan, Miao  and
      Grishman, Ralph",
    editor = "Mitkov, Ruslan  and
      Angelova, Galia  and
      Bontcheva, Kalina",
    booktitle = "Proceedings of the International Conference Recent Advances in Natural Language Processing",
    month = sep,
    year = "2015",
    address = "Hissar, Bulgaria",
    publisher = "INCOMA Ltd. Shoumen, BULGARIA",
    url = "https://preview.aclanthology.org/fix-sig-urls/R15-1010/",
    pages = "72--77"
}