@inproceedings{brown-2011-error,
    title = "An Error Analysis of Relation Extraction in Social Media Documents",
    author = "Brown, Gregory",
    editor = "Petrovic, Sasa  and
      Selfridge, Ethan  and
      Pitler, Emily  and
      Osborne, Miles  and
      Solorio, Thamar",
    booktitle = "Proceedings of the {ACL} 2011 Student Session",
    month = jun,
    year = "2011",
    address = "Portland, OR, USA",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/P11-3012/",
    pages = "64--68"
}