@inproceedings{ritter-etal-2011-named,
    title = "Named Entity Recognition in Tweets: An Experimental Study",
    author = "Ritter, Alan  and
      Clark, Sam  and
      Mausam  and
      Etzioni, Oren",
    editor = "Barzilay, Regina  and
      Johnson, Mark",
    booktitle = "Proceedings of the 2011 Conference on Empirical Methods in Natural Language Processing",
    month = jul,
    year = "2011",
    address = "Edinburgh, Scotland, UK.",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/D11-1141/",
    pages = "1524--1534"
}