@misc{cappoca:06, title = {Preferential attachment in the growth of social networks: the case of Wikipedia}, author = {A. Capocci and V. D. P. Servedio and F. Colaiori and L. S. Buriol and D. Donato and S. Leonardi and G. Caldarelli}, month = {Feb}, url = {http://arxiv.org/abs/physics/0602026}, year = {2006}, biburl = {http://www.bibsonomy.org/bibtex/277e4e6c1601e81ae88d3dff90a483b86/schaal}, abstract = {We present an analysis of the statistical properties and growth of the free on-line encyclopedia Wikipedia. By describing topics by vertices and hyperlinks between them as edges, we can represent this encyclopedia as a directed graph. The topological properties of this graph are in close analogy with that of the World Wide Web, despite the very different growth mechanism. In particular we measure a scale--invariant distribution of the in-- and out-- degree and we are able to reproduce these features by means of a simple statistical model. As a major consequence, Wikipedia growth can be described by local rules such as the preferential attachment mechanism, though users can act globally on the network.}, eprint = {physics/0602026}, priority = {2}, citeulike-article-id = {525472}, keywords = {collaborative-communities social-networks } }