@InProceedings{wang-liu:2011:WASSA2011,
  author    = {Wang, Dong  and  Liu, Yang},
  title     = {A Cross-corpus Study of Unsupervised Subjectivity Identification based on Calibrated EM},
  booktitle = {Proceedings of the 2nd Workshop on Computational Approaches to Subjectivity and Sentiment Analysis (WASSA 2.011)},
  month     = {June},
  year      = {2011},
  address   = {Portland, Oregon},
  publisher = {Association for Computational Linguistics},
  pages     = {161--167},
  url       = {http://www.aclweb.org/anthology/W11-1721}
}