@InProceedings{turney:2002:ACL,
  author    = {Peter Turney},
  title     = {Thumbs Up or Thumbs Down? Semantic Orientation Applied to Unsupervised Classification of Reviews},
  booktitle = {Proceedings of 40th Annual Meeting of the Association for Computational Linguistics},
  month     = {July},
  year      = {2002},
  address   = {Philadelphia, Pennsylvania, USA},
  publisher = {Association for Computational Linguistics},
  pages     = {417--424},
  url       = {http://www.aclweb.org/anthology/P02-1053},
  doi       = {10.3115/1073083.1073153}
}