@inproceedings{haffari-sarkar-2008-homotopy,
    title = "Homotopy-Based Semi-Supervised Hidden {M}arkov Models for Sequence Labeling",
    author = "Haffari, Gholamreza  and
      Sarkar, Anoop",
    editor = "Scott, Donia  and
      Uszkoreit, Hans",
    booktitle = "Proceedings of the 22nd International Conference on Computational Linguistics (Coling 2008)",
    month = aug,
    year = "2008",
    address = "Manchester, UK",
    publisher = "Coling 2008 Organizing Committee",
    url = "https://preview.aclanthology.org/ingest-emnlp/C08-1039/",
    pages = "305--312"
}