1. Han, J., Kamber, M., Pei, J.: Data Mining: Concepts and Techniques, San Francisco. Morgan Kaufmann Publishers Inc., California (2011)
2. Mansmann, S., Rehman, N.U., Weiler, A., Scholl, M.H.: Discovering OLAP dimensions in semi-structured data. Inf. Syst. 44, 120–133 (2014)
3. Abello, A.: Using semantic web technologies for exploratory OLAP: a survey. IEEE Trans. Knowl. Data Eng. 27(2), 571–588 (2015)
4. Berbel, T.R.L., González, S.M.: How to help end users to get better decisions? Personalizing OLAP aggregation queries through semantic recommendation of text documents. Int. J. Bus. Intell. Data Min. 10(1), 1–18 (2015)
5. Mendoza, M., Alegría, E., Maca, M., Cobos, C., León, E.: Multidimensional analysis model for a document warehouse that includes textual measures. Decis. Support Syst. 72(1), 44–59 (2015)