@inproceedings{blunsom-cohn-2011-hierarchical,
    title = "A Hierarchical {P}itman-{Y}or Process {HMM} for Unsupervised Part of Speech Induction",
    author = "Blunsom, Phil  and
      Cohn, Trevor",
    editor = "Lin, Dekang  and
      Matsumoto, Yuji  and
      Mihalcea, Rada",
    booktitle = "Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies",
    month = jun,
    year = "2011",
    address = "Portland, Oregon, USA",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest-emnlp/P11-1087/",
    pages = "865--874"
}