@inproceedings{ko-seo-2004-learning,
    title = "Learning with Unlabeled Data for Text Categorization Using a Bootstrapping and a Feature Projection Technique",
    author = "Ko, Youngjoong  and
      Seo, Jungyun",
    booktitle = "Proceedings of the 42nd Annual Meeting of the Association for Computational Linguistics ({ACL}-04)",
    month = jul,
    year = "2004",
    address = "Barcelona, Spain",
    url = "https://preview.aclanthology.org/fix-sig-urls/P04-1033/",
    doi = "10.3115/1218955.1218988",
    pages = "255--262"
}