@misc{capocci-2007,
        title = {Taxonomy and clustering in collaborative systems: the case of the on-line encyclopedia Wikipedia},
        author = {A. Capocci and F. Rao and G. Caldarelli},
        year = 2007,
        url = {http://www.citebase.org/abstract?id=oai:arXiv.org:0710.3058},
        description = {Taxonomy and clustering in collaborative systems: the case of the on-line encyclopedia Wikipedia},
	abstract = { In this paper we investigate the nature and structure of the relation between imposed classifications and real clustering in a particular case of a scale-free network given by the on-line encyclopedia Wikipedia. We find a statistical similarity in the distributions of community sizes both by using the top-down approach of the categories division present in the archive and in the bottom-up procedure of community detection given by an algorithm based on the spectral properties of the graph. Regardless the statistically similar behaviour the two methods provide a rather different division of the articles, thereby signaling that the nature and presence of power laws is a general feature for these systems and cannot be used as a benchmark to evaluate the suitability of a clustering method.},
	biburl = {http://www.bibsonomy.org/bibtex/29c69bc97d22b7e5c2d90d8765b491a16/dbenz},
	keywords = {wikipedia taxonomy toread comparison clustering}
}

@article{keyhere,
        title = {Exploring The Value Of Folksonomies For Creating Semantic Metadata},
        author = {Hend S. Al-Khalifa and Hugh C. Davis},
        year = 2007,
        url = {http://eprints.ecs.soton.ac.uk/13555/},
        typesource = {Simple CitationSource},
	source = {},
	asin = {},
	pubmed = {},
	doi = {},
	description = {ECS EPrints Service - Exploring The Value Of Folksonomies For Creating Semantic Metadata},
	biburl = {http://www.bibsonomy.org/bibtex/2c058fbfdcb787b442c8515bc9a87b8f6/dbenz},
	keywords = {folksonomy toread comparison metadata}
}