1. Smeaton, A.F., Callan, J.: Personalisation and recommender systems in digital libraries. Int. J. on Digital Libraries 5, 299–308 (2005)
2. Perugini, S., Gonçalves, M.A., Fox, E.A.: Recommender systems research: A connection-centric survey. J. Intell. Inf. Syst. 23, 107–143 (2004)
3. Loh, S., et al.: Constructing domain ontologies for indexing texts and creating users’ profiles. In: Work. on Ontologies and Metamodeling in Software and Data Engineering, Brazilian Symp. on Databases, UFSC, Florianópolis, pp. 72–82 (2006)
4. Aleman-Meza, B., et al.: Semantic analytics on social networks: experiences in addressing the problem of conflict of interest detection. In: Intl. Conf. on World Wide Web, pp. 407–416. ACM Press, New York (2006)
5. Mika, P.: Social networks and the semantic web. In: IEEE/WIC/ACM Intl. Conf. on Web Intelligence, pp. 285–291. IEEE Press, New York (2004)