@InProceedings{drury-torgo-almeida:2011:ROBUS,
  author    = {Drury, Brett  and  Torgo, Luis  and  Almeida, Jose Joao},
  title     = {Guided Self Training for Sentiment Classification},
  booktitle = {Proceedings of Workshop on Robust Unsupervised and Semisupervised Methods in Natural Language Processing},
  month     = {September},
  year      = {2011},
  address   = {Hissar, Bulgaria},
  pages     = {9--16},
  url       = {http://www.aclweb.org/anthology/W11-3902}
}