@inproceedings{cotterell-eisner-2015-penalized,
    title = "Penalized Expectation Propagation for Graphical Models over Strings",
    author = "Cotterell, Ryan  and
      Eisner, Jason",
    editor = "Mihalcea, Rada  and
      Chai, Joyce  and
      Sarkar, Anoop",
    booktitle = "Proceedings of the 2015 Conference of the North {A}merican Chapter of the Association for Computational Linguistics: Human Language Technologies",
    month = may # "–" # jun,
    year = "2015",
    address = "Denver, Colorado",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest_wac_2008/N15-1094/",
    doi = "10.3115/v1/N15-1094",
    pages = "932--942"
}