@InProceedings{balagefilho-EtAl:2014:SemEval,
  author    = {Balage Filho, Pedro  and  Avan\c{c}o, Lucas  and  Pardo, Thiago  and  Volpe Nunes, Maria das Gra\c{c}as},
  title     = {NILC\_USP: An Improved Hybrid System for Sentiment Analysis in Twitter Messages},
  booktitle = {Proceedings of the 8th International Workshop on Semantic Evaluation (SemEval 2014)},
  month     = {August},
  year      = {2014},
  address   = {Dublin, Ireland},
  publisher = {Association for Computational Linguistics and Dublin City University},
  pages     = {428--432},
  url       = {http://www.aclweb.org/anthology/S14-2074}
}