@inproceedings{ijcai2009p202,
  title     = {Expanding Domain Sentiment Lexicon through Double Propagation},
  author    = {Qiu, Guang and Liu, Bing and Bu, Jiajun and Chen, Chun},
  booktitle = {Proceedings of the Twenty-First International Joint Conference on
               Artificial Intelligence, {IJCAI-09}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Hiroaki Kitano},
  pages     = {1199--1203},
  year      = {2009},
  url       = {https://ijcai.org/proceedings/2009/202},
}