@inproceedings{akbik-etal-2012-unsupervised,
    title = "Unsupervised Discovery of Relations and Discriminative Extraction Patterns",
    author = {Akbik, Alan  and
      Visengeriyeva, Larysa  and
      Herger, Priska  and
      Hemsen, Holmer  and
      L{\"o}ser, Alexander},
    editor = "Kay, Martin  and
      Boitet, Christian",
    booktitle = "Proceedings of {COLING} 2012",
    month = dec,
    year = "2012",
    address = "Mumbai, India",
    publisher = "The COLING 2012 Organizing Committee",
    url = "https://preview.aclanthology.org/fix-sig-urls/C12-1002/",
    pages = "17--32"
}