1.
Bishop, C. M. Pattern Recognition and Machine Learning. vol. Information science and statistics (Springer, New York, 2006).
2.
Manning, C. D., Raghavan, P. & Schütze, H. Introduction to Information Retrieval. (Cambridge University Press, New York, 2008).
3.
Pang-Ning Tan, Michael Steinbach, & Vipin Kumar. Introduction to Data Mining, (First Edition). (Addison Wesley).
4.
Witten, I. H., Moffat, A. & Bell, T. C. Managing Gigabytes: Compressing and Indexing Documents and Images. (Morgan Kaufman, San Francisco, Ca, 1999).