1. Asker, L., Maclin, R.: Ensembles as a sequence of classifiers. In: Proc. of IJCAI, pp. 860–865 (1997)
2. Baccianella, S., Esuli, A., Sebastiani, F.: SentiWordNet 3.0: An enhanced lexical resource for sentiment analysis and opinion mining. In: Proc. of LREC (2010)
3. Balahur, A., Turchi, M.: Improving sentiment analysis in twitter using multilingual machine translated data. In: Proc. of RANLP 2013, pp. 49–55 (2013)
4. Barbosa, L., Feng, J.: Robust sentiment detection on twitter from biased and noisy data. In: Proc. of COLING 2010, pp. 36–44 (2010)
5. Bifet, A., Frank, E.: Sentiment knowledge discovery in twitter streaming data. In: Proc. of DS 2010, pp. 1–15 (2010)