@inproceedings{fukumoto2004conll,
   author = "Fumiyo Fukumoto and Yoshimi Suzuki",
   title = "A Comparison of Manual and Automatic Constructions of Category Hierarchy for Classifying Large Corpora",
   booktitle = "Proceedings of CoNLL-2004",
   editors = "Hwee Tou Ng and Ellen Riloff",
   publisher = "Boston, MA, USA",
   year = "2004",
   pages = "65--72"
}