@InProceedings{fernandezgavilanes-EtAl:2015:SemEval,
  author    = {Fern\'{a}ndez-Gavilanes, Milagros  and  \'{A}lvarez-L\'{o}pez, Tamara  and  Juncal-Mart\'{i}nez, Jonathan  and  Costa-Montenegro, Enrique  and  Gonz\'{a}lez-Casta\~{n}o, Francisco Javier},
  title     = {GTI: An Unsupervised Approach for Sentiment Analysis in Twitter},
  booktitle = {Proceedings of the 9th International Workshop on Semantic Evaluation (SemEval 2015)},
  month     = {June},
  year      = {2015},
  address   = {Denver, Colorado},
  publisher = {Association for Computational Linguistics},
  pages     = {533--538},
  url       = {http://www.aclweb.org/anthology/S15-2089}
}