@inproceedings{xu-etal-2013-filling,
    title = "Filling Knowledge Base Gaps for Distant Supervision of Relation Extraction",
    author = "Xu, Wei  and
      Hoffmann, Raphael  and
      Zhao, Le  and
      Grishman, Ralph",
    editor = "Schuetze, Hinrich  and
      Fung, Pascale  and
      Poesio, Massimo",
    booktitle = "Proceedings of the 51st Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers)",
    month = aug,
    year = "2013",
    address = "Sofia, Bulgaria",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/P13-2117/",
    pages = "665--670"
}