@inproceedings{tu-2016-modified,
    title = "Modified {D}irichlet Distribution: Allowing Negative Parameters to Induce Stronger Sparsity",
    author = "Tu, Kewei",
    editor = "Su, Jian  and
      Duh, Kevin  and
      Carreras, Xavier",
    booktitle = "Proceedings of the 2016 Conference on Empirical Methods in Natural Language Processing",
    month = nov,
    year = "2016",
    address = "Austin, Texas",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/D16-1208/",
    doi = "10.18653/v1/D16-1208",
    pages = "1986--1991"
}