1. Agarwal , A. Xie , B. Vovsha , I. Rambow , O. Passonneau , R. 2011 Sentiment analysis of Twitter data
2. Barbosa , L. Feng , J. 2010 Robust sentiment detection on twitter from biased and noisy data
3. Becker , H. Naaman , M. Gravano , L. 2011 Beyond trending topics: Real-world event identification on Twitter
4. Bermingham , A. Smeaton , A. 2010 Classifying sentiment in microblogs: Is brevity an advantage is brevity an advantage?