@InProceedings{amir-EtAl:2014:SemEval,
  author    = {Amir, Silvio  and  Almeida, Miguel B.  and  Martins, Bruno  and  Filgueiras, Jo\~{a}o  and  Silva, Mario J.},
  title     = {TUGAS: Exploiting unlabelled data for Twitter sentiment analysis},
  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     = {673--677},
  url       = {http://www.aclweb.org/anthology/S14-2120}
}