@inproceedings{downey-etal-2015-efficient,
    title = "Efficient Methods for Inferring Large Sparse Topic Hierarchies",
    author = "Downey, Doug  and
      Bhagavatula, Chandra  and
      Yang, Yi",
    editor = "Zong, Chengqing  and
      Strube, Michael",
    booktitle = "Proceedings of the 53rd Annual Meeting of the Association for Computational Linguistics and the 7th International Joint Conference on Natural Language Processing (Volume 1: Long Papers)",
    month = jul,
    year = "2015",
    address = "Beijing, China",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/P15-1075/",
    doi = "10.3115/v1/P15-1075",
    pages = "774--784"
}