@inproceedings{xu-etal-2007-seed,
    title = "A Seed-driven Bottom-up Machine Learning Framework for Extracting Relations of Various Complexity",
    author = "Xu, Feiyu  and
      Uszkoreit, Hans  and
      Li, Hong",
    editor = "Zaenen, Annie  and
      van den Bosch, Antal",
    booktitle = "Proceedings of the 45th Annual Meeting of the Association of Computational Linguistics",
    month = jun,
    year = "2007",
    address = "Prague, Czech Republic",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/P07-1074/",
    pages = "584--591"
}