Konstan, JosephA. and Riedl, John. Recommender systems: from algorithms to user experience. In User Modeling and User-Adapted Interaction, (22) 1-2: 101-123, Springer Netherlands, Year 2012.

Garcia-Silva, Andres and Corcho, Oscar and Alani, Harith and Gomez-Perez, Asuncion. Review of the state of the art: Discovering and Associating Semantics to Tags in Folksonomies. In Knowledge Engineering Review, (26) 4: Year 2011.

Recommender Systems Handbook. Recommender Systems Handbook. editor(s) Ricci, Francesco and Rokach, Lior and Shapira, Bracha and Kantor, Paul B.. Springer, Year 2011.

Herrera, Franciso and Carmona, Cristóbal and González, Pedro and del Jesus, María. An overview on subgroup discovery: foundations and applications. In Knowledge and Information Systems, 1-31, Springer London, Year 2010.

LIBRARYä, UCD. 2Bibliometrics - an introduction. editor(s) LIBRARY, UCD. Springer Verlag, Year 2010.

Brewster, C and Jupp, S and Luciano, J and Shotton, D and Stevens, R D and Zhang, Z. Issues in learning an ontology from text. In BMC Bioinformatics, (10 Suppl 5) Year 2009.

Dong, Xishuang and Chen, Xiaodong and Guan, Yi and Yu, Zhiming and Li, Sheng. An Overview of Learning to Rank for Information Retrieval.. CSIE (3). editor(s) Burgin, Mark and Chowdhury, Masud H. and Ham, Chan H. and Ludwig, Simone A. and Su, Weilian and Yenduri, Sumanth. 600-606, IEEE Computer Society, Year 2009.

Limpens, Freddy and Gandon, Fabien and Buffa, Michel. Linking Folksonomies and Ontologies for Supporting Knowledge Sharing: a State of the Art. Year 2009.

Limpens, Freddy and Gandon, Fabien and Buffa, Michel. Bridging ontologies and folksonomies to leverage knowledge sharing on the social Web: A brief survey. In Automated Software Engineering - Workshops, 2008. ASE Workshops 2008. 23rd IEEE/ACM International Conference on, 13-18, Year 2008.

Zhou, Lina. Ontology learning: state of the art and open issues. In Information Technology and Management, (8) 3: 241--252, Year 2007.

Cimiano, Philipp and Völker, Johanna and Studer, Rudi. Ontologies on Demand? - A Description of the State-of-the-Art, Applications, Challenges and Trends for Ontology Learning from Text. In Information, Wissenschaft und Praxis, (57) 6-7: 315-320, Year 2006.

Biemann, Chris. Ontology Learning from Text: A Survey of Methods.. In LDV Forum, (20) 2: 75-93, Year 2005.

Formal Concept Analysis: Foundations and Applications. editor(s) Ganter, Bernhard and Stumme, Gerd and Wille, Rudolf. Lecture Notes in Computer Science, (3626) Springer, Berlin/Heidelberg, Year 2005.

Gómez-Pérez, A. and Manzano-Macho, D.. An overview of methods and tools for ontology learning from texts. In The knowledge engineering review, (19) 03: 187--212, Cambridge Univ Press, Year 2004.

Shamsfard, M. and Barforoush, A. Abdollahzadeh. The state of the art in ontology learning: a framework for comparison. In The Knowledge Engineering Review, (18) 04: 293--316, Cambridge Univ Press, Year 2003.

Handbook on Ontologies. editor(s) Staab, S. and Studer, R.. Springer, Berlin, DE, Year 2003.

Spinning the Semantic Web: Bringing the World Wide Web
to Its Full Potential. editor(s) Fensel, Dieter and Wahlster, Wolfgang and Lieberman, Henry and Hendler, James. MIT Press, Year 2002.

Omelayenko, Borys. Learning of Ontologies for the Web: the Analysis of Existent Approaches. Proceedings of the International Workshop on Web Dynamics, held in conj. with the 8th International Conference on Database Theory (ICDT’01), London, UK. Year 2001.

Jain, A. K. and Murty, M. N. and Flynn, P. J.. Data Clustering: A Review. In ACM Comput. Surv., (31) 3: 264--323, ACM, New York, NY, USA, Year 1999.

Jain, Anil K. and Dubes, Richard C.. Algorithms for clustering data. Prentice-Hall, Inc., Upper Saddle River, NJ, USA, Year 1988.