eprintid: 1120 rev_number: 12 eprint_status: archive userid: 6 dir: disk0/00/00/11/20 datestamp: 2012-02-14 14:31:41 lastmod: 2013-11-20 14:32:59 status_changed: 2012-02-14 14:31:41 type: article metadata_visibility: show creators_name: Catanzaro, Michele creators_name: Caldarelli, Guido creators_name: Pietronero, Luciano creators_id: creators_id: guido.caldarelli@imtlucca.it creators_id: title: Assortative model for social networks ispublished: pub subjects: QA subjects: QC subjects: ZA divisions: EIC full_text_status: none keywords: PACS: 89.65.Ef, 89.20.Hh, 89.75.Hc abstract: In this Brief Report we present a version of a network growth model, generalized in order to describe the behavior of social networks. The case of study considered is the preprint archive at cul.arxiv.org. Each node corresponds to a scientist, and a link is present whenever two authors wrote a paper together. This graph is a nice example of degree-assortative network, that is, to say a network where sites with similar degree are connected to each other. The model presented is one of the few able to reproduce such behavior, giving some insight on the microscopic dynamics at the basis of the graph structure. date: 2004-09 date_type: published publication: Physical Review E volume: 70 number: 3 publisher: American Physical Society id_number: 10.1103/PhysRevE.70.037101 refereed: TRUE issn: 1539-3755 official_url: http://dx.doi.org/10.1103/PhysRevE.70.037101 related_url_url: http://arxiv.org/abs/cond-mat/0308073 citation: Catanzaro, Michele and Caldarelli, Guido and Pietronero, Luciano Assortative model for social networks. Physical Review E, 70 (3). ISSN 1539-3755 (2004)