1. booking.com:
http://www.booking.com
(2015)
2. Dařena, F., Žižka, J.: Text mining-based formation of dictionaries expressing opinions in natural languages. In: Proceedings of the 17th International Conference on Soft Computing Mendel 2011, June 15–17, Brno, pp. 374–381 (2011)
3. Liu, H., Motoda, H.: Computational Methods of Feature Selection. Chapman and Hall/CRC (2007)
4. Miner, G.: Practical Text Mining and Statistical Analysis for Non-structured Text Data Applications. Elsevier Inc. (2012)
5. Quinlan, J.R.: C4.5: Programs for Machine Learning. Morgan Kaufmann (1993)