@InProceedings{heilman-smith:2010:NAACLHLT2,
  author    = {Heilman, Michael  and  Smith, Noah A.},
  title     = {Tree Edit Models for Recognizing Textual Entailments, Paraphrases, and Answers to Questions},
  booktitle = {Human Language Technologies: The 2010 Annual Conference of the North American Chapter of the Association for Computational Linguistics},
  month     = {June},
  year      = {2010},
  address   = {Los Angeles, California},
  publisher = {Association for Computational Linguistics},
  pages     = {1011--1019},
  url       = {http://www.aclweb.org/anthology/N10-1145}
}