eprintid: 1109
rev_number: 11
eprint_status: archive
userid: 6
dir: disk0/00/00/11/09
datestamp: 2012-02-03 14:29:51
lastmod: 2014-12-18 16:02:51
status_changed: 2012-02-03 14:29:51
type: article
metadata_visibility: show
creators_name: Capocci, Andrea
creators_name: Servedio, Vito D. P.
creators_name: Colaiori, Francesca
creators_name: Buriol, Luciana
creators_name: Donato, Debora
creators_name: Leonardi, Stefano
creators_name: Caldarelli, Guido
creators_id: 
creators_id: 
creators_id: 
creators_id: 
creators_id: 
creators_id: 
creators_id: guido.caldarelli@imtlucca.it
title: Preferential attachment in the growth of social networks: the internet encyclopedia Wikipedia
ispublished: pub
subjects: HA
subjects: QA75
divisions: EIC
full_text_status: public
keywords: PACS: 89.75.Hc; 89.75.Da; 89.75.Fb
note: © 2006 American Physical Society
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.
date: 2006-09
publication: Physical Review E
volume: 74
number: 3
publisher: American Physical Society
id_number: 10.1103/PhysRevE.74.036116
refereed: TRUE
issn: 1539-3755
official_url: http://dx.doi.org/10.1103/PhysRevE.74.036116
citation:   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)  
document_url: http://eprints.imtlucca.it/1109/1/PhysRevE.74.036116Caldarelli_2006.pdf