@inproceedings{zou-etal-2013-tree,
    title = "Tree Kernel-based Negation and Speculation Scope Detection with Structured Syntactic Parse Features",
    author = "Zou, Bowei  and
      Zhou, Guodong  and
      Zhu, Qiaoming",
    editor = "Yarowsky, David  and
      Baldwin, Timothy  and
      Korhonen, Anna  and
      Livescu, Karen  and
      Bethard, Steven",
    booktitle = "Proceedings of the 2013 Conference on Empirical Methods in Natural Language Processing",
    month = oct,
    year = "2013",
    address = "Seattle, Washington, USA",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/D13-1099/",
    pages = "968--976"
}