Conceptual Clustering of Social Bookmarking Sites
Grahl, M.; Hotho, A. & Stumme, G.
, '7th International Conference on Knowledge Management (I-KNOW '07)', Know-Center, Graz, Austria, 356-364 (2007)
Currently, social bookmarking systems provide intuitive support for browsing locally their content. A global view is usually presented by the tag cloud of the system, but it does not allow a conceptual drill-down, e. g., along a conceptual hierarchy. In this paper, we present a clustering approach for computing such a conceptual hierarchy for a given folksonomy. The hierarchy is complemented with ranked lists of users and resources most related to each cluster. The rankings are computed using our FolkRank algorithm. We have evaluated our approach on large scale data from the bookmarking system.
Tracking User Attention in Collaborative Tagging Communities
Santos-Neto, E.; Ripeanu, M. & Iamnitchi, A.
(2007) [pdf]
Automated Tag Clustering: Improving search and exploration in the tag space
Begelman, G.; Keller, P. & Smadja, F.
WWW2006, May 22-26 (2006) [pdf]
Collaborative Creation of Communal Hierarchical Taxonomies in Social Tagging Systems
Heymann, P. & Garcia-Molina, H.
2006, Technical report, Computer Science Department [pdf]
Collaborative tagging systems---systems where many casual users annotate objects with free-form strings (tags) of their choosing---have recently emerged as a powerful way to label and organize large collections of data. During our recent investigation into these types of systems, we discovered a simple but remarkably effective algorithm for converting a large corpus of tags annotating objects in a tagging system into a navigable hierarchical taxonomy of tags. We first discuss the algorithm and then present a preliminary model to explain why it is so effective in these types of systems.
Ontologies Are Us: A Unified Model of Social Networks and Semantics
Mika, P.
, 'International Semantic Web Conference', LNCS, Springer, [10.1007/11574620_38], 522-536 (2005) [pdf]