1. DuBois, T., Golbeck, J., Kleint, J., & Srinivasan, A. (2009). Improving recommendation accuracy by clustering social networks with trust. In ACM RecSys’09 workshop on recommender systems & the social web.
2. Wordnet and wordnets;Fellbaum,2005
3. Clustering by passing messages between data points;Frey;Science,2007
4. Gemmell, J., Shepitsen, A., Mobasher, M., & Burke, R. (2008). Personalization in folksonomies based on tag clustering. In Proceedings of the 6th workshop on intelligent techniques for web personalization and recommender systems.
5. Usage patterns of collaborative tagging systems;Golder;Journal of Information Science,2006