@InProceedings{xiang-zhou:2014:P14-2,
  author    = {Xiang, Bing  and  Zhou, Liang},
  title     = {Improving Twitter Sentiment Analysis with Topic-Based Mixture Modeling and Semi-Supervised Training},
  booktitle = {Proceedings of the 52nd Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers)},
  month     = {June},
  year      = {2014},
  address   = {Baltimore, Maryland},
  publisher = {Association for Computational Linguistics},
  pages     = {434--439},
  url       = {http://www.aclweb.org/anthology/P/P14/P14-2071}
}