@InProceedings{ratinov-roth:2009:CoNLL,
  author    = {Ratinov, Lev  and  Roth, Dan},
  title     = {Design Challenges and Misconceptions in Named Entity Recognition},
  booktitle = {Proceedings of the Thirteenth Conference on Computational Natural Language Learning (CoNLL-2009)},
  month     = {June},
  year      = {2009},
  address   = {Boulder, Colorado},
  publisher = {Association for Computational Linguistics},
  pages     = {147--155},
  url       = {http://www.aclweb.org/anthology/W/W09/W09-1119}
}