@inproceedings{sudo-etal-2003-improved,
    title = "An Improved Extraction Pattern Representation Model for Automatic {IE} Pattern Acquisition",
    author = "Sudo, Kiyoshi  and
      Sekine, Satoshi  and
      Grishman, Ralph",
    booktitle = "Proceedings of the 41st Annual Meeting of the Association for Computational Linguistics",
    month = jul,
    year = "2003",
    address = "Sapporo, Japan",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/iwcs-25-ingestion/P03-1029/",
    doi = "10.3115/1075096.1075125",
    pages = "224--231"
}