1. Agresti, A. (1990). Categorical data analysis. New York: Wiley.
2. Bishop, Y. M. M., Fienberg, S. E., & Holland, P. W. (1975). Discrete multivariate analysis: Theory and practice. Cambridge, MA: MIT Press.
3. Dong, G., & Pei, J. (2007). Sequence data mining. New York: Springer.
4. Fink, G. A. (2008). Markov models for pattern recognition. Berlin, Germany: Springer.
5. Forman, G. (2003). An extensive empirical study of feature selection metrics for text classification. Journal of Machine Learning Research, 3, 1289–1305.