@InProceedings{somasundaran-EtAl:2009:TextGraphs4,
  author    = {Somasundaran, Swapna  and  Namata, Galileo  and  Getoor, Lise  and  Wiebe, Janyce},
  title     = {Opinion Graphs for Polarity and Discourse Classification},
  booktitle = {Proceedings of the 2009 Workshop on Graph-based Methods for Natural Language Processing (TextGraphs-4)},
  month     = {August},
  year      = {2009},
  address   = {Suntec, Singapore},
  publisher = {Association for Computational Linguistics},
  pages     = {66--74},
  url       = {http://www.aclweb.org/anthology/W/W09/W09-3210}
}