@inproceedings{davidov-rappoport-2006-efficient,
    title = "Efficient Unsupervised Discovery of Word Categories Using Symmetric Patterns and High Frequency Words",
    author = "Davidov, Dmitry  and
      Rappoport, Ari",
    editor = "Calzolari, Nicoletta  and
      Cardie, Claire  and
      Isabelle, Pierre",
    booktitle = "Proceedings of the 21st International Conference on Computational Linguistics and 44th Annual Meeting of the Association for Computational Linguistics",
    month = jul,
    year = "2006",
    address = "Sydney, Australia",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/landing_page/P06-1038/",
    doi = "10.3115/1220175.1220213",
    pages = "297--304"
}