@inproceedings{chang-etal-2007-guiding,
    title = "Guiding Semi-Supervision with Constraint-Driven Learning",
    author = "Chang, Ming-Wei  and
      Ratinov, Lev  and
      Roth, Dan",
    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://preview.aclanthology.org/moar-dois/P07-1036/",
    pages = "280--287"
}