@inproceedings{metzler-etal-2011-empirical,
    title = "An Empirical Evaluation of Data-Driven Paraphrase Generation Techniques",
    author = "Metzler, Donald  and
      Hovy, Eduard  and
      Zhang, Chunliang",
    editor = "Lin, Dekang  and
      Matsumoto, Yuji  and
      Mihalcea, Rada",
    booktitle = "Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies",
    month = jun,
    year = "2011",
    address = "Portland, Oregon, USA",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/P11-2096/",
    pages = "546--551"
}