@InProceedings{cheung-penn:2012:EACL20122,
  author    = {Cheung, Jackie Chi Kit  and  Penn, Gerald},
  title     = {Unsupervised Detection of Downward-Entailing Operators By Maximizing Classification Certainty},
  booktitle = {Proceedings of the 13th Conference of the European Chapter of the Association for Computational Linguistics},
  month     = {April},
  year      = {2012},
  address   = {Avignon, France},
  publisher = {Association for Computational Linguistics},
  pages     = {696--705},
  url       = {http://www.aclweb.org/anthology/E12-1071}
}