1. R. Agrawal and R. Srikant. 1995. Mining sequential patterns. In Proceedings of the Eleventh International Conference on Data Engineering.
2. Ricardo Barandela, José Salvador Sánchez, Vicente Garcıa, and Edgar Rangel. 2003. Strategies for learning in class imbalance problems. Pattern Recognition (2003).
3. Richard Bartle. 1996. Hearts, clubs, diamonds, spades: Players who suit MUDs. Journal of MUD research (1996).
4. Gustavo EAPA Batista, Ronaldo C Prati, and Maria Carolina Monard. 2004. A study of the behavior of several methods for balancing machine learning training data. ACM SIGKDD explorations newsletter (2004).