@InProceedings{nakov-hearst:2007:SemEval-2007,
  author    = {Nakov, Preslav  and  Hearst, Marti},
  title     = {UCB: System Description for SemEval Task \#4},
  booktitle = {Proceedings of the Fourth International Workshop on Semantic Evaluations (SemEval-2007)},
  month     = {June},
  year      = {2007},
  address   = {Prague, Czech Republic},
  publisher = {Association for Computational Linguistics},
  pages     = {366--369},
  url       = {http://www.aclweb.org/anthology/W/W07/W07-2080}
}