@inproceedings{mann-mccallum-2008-generalized,
    title = "Generalized Expectation Criteria for Semi-Supervised Learning of Conditional Random Fields",
    author = "Mann, Gideon S.  and
      McCallum, Andrew",
    editor = "Moore, Johanna D.  and
      Teufel, Simone  and
      Allan, James  and
      Furui, Sadaoki",
    booktitle = "Proceedings of ACL-08: HLT",
    month = jun,
    year = "2008",
    address = "Columbus, Ohio",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest-emnlp/P08-1099/",
    pages = "870--878"
}