1. J. Gonzalo, J. Artiles, F. Verdejo, A comparison of extrinsic clustering evaluation metrics based on formal constraints. Information Retrieval 12(4), 461–486 (2009)
2. J. Han, M. Kamber, J. Pei, Data Mining: Concept and Techniques (Morgan Kaufmann, 2012)
3. T. Jo, The Implementation of Dynamic Document Organization using Text Categorization and Text Clustering, Ph.D. Dissertation of University of Ottawa, 2006
4. T. Jo, Modification of clustering algorithms for text clustering. Int. J. Comput. Sci. Software Technol. 3(1), 21–33 (2010)
5. T. Jo, Text Mining: Concepts and Big Data Challenge (Springer, 2018)