@inproceedings{ikeda-etal-1998-information-classification,
    title = "Information Classification and Navigation based on 5{W}1{H} of the Target Information",
    author = "Ikeda, Takahiro  and
      Okumura, Akitoshi  and
      Muraki, Kazunori",
    booktitle = "36th Annual Meeting of the Association for Computational Linguistics and 17th International Conference on Computational Linguistics, Volume 1",
    month = aug,
    year = "1998",
    address = "Montreal, Quebec, Canada",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/P98-1093/",
    doi = "10.3115/980845.980940",
    pages = "571--577"
}