Bishop, Christopher M. 2006. Pattern Recognition and Machine Learning. Vol. Information science and statistics. New York: Springer.
Ian H. Witten, Alistair Moffat, and Timothy C. Bell. n.d. Managing Gigabytes. Morgan Kaufmann.
Manning, Christopher D., Prabhakar Raghavan, and Hinrich Schütze. 2008. Introduction to Information Retrieval. New York: Cambridge University Press.
Pang-Ning Tan, Michael Steinbach, and Vipin Kumar. n.d. Introduction to Data Mining, (First Edition). Addison Wesley.