Capocci, Andrea and Servedio, Vito D. P. and Colaiori, Francesca and Buriol, Luciana and Donato, Debora and Leonardi, Stefano and Caldarelli, Guido Preferential attachment in the growth of social networks: the internet encyclopedia Wikipedia. Physical Review E, 74 (3). ISSN 1539-3755 (2006)
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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 those 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, who are responsible of its evolution, can act globally on the network.
| Item Type: | Article |
|---|---|
| Identification Number: | 10.1103/PhysRevE.74.036116 |
| Additional Information: | © 2006 American Physical Society |
| Uncontrolled Keywords: | PACS: 89.75.Hc; 89.75.Da; 89.75.Fb |
| Subjects: | H Social Sciences > HA Statistics Q Science > QA Mathematics > QA75 Electronic computers. Computer science |
| Research Area: | Economics and Institutional Change |
| Depositing User: | Ms T. Iannizzi |
| Date Deposited: | 03 Feb 2012 14:29 |
| Last Modified: | 18 Dec 2014 16:02 |
| URI: | http://eprints.imtlucca.it/id/eprint/1109 |
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