@inproceedings{shibata-kurohashi-2006-unsupervised,
    title = "Unsupervised Topic Identification by Integrating Linguistic and Visual Information Based on Hidden {M}arkov Models",
    author = "Shibata, Tomohide  and
      Kurohashi, Sadao",
    booktitle = "Proceedings of the {COLING}/{ACL} 2006 Main Conference Poster Sessions",
    month = jul,
    year = "2006",
    address = "Sydney, Australia",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest_wac_2008/P06-2097/",
    pages = "755--762"
}