eprintid: 1164 rev_number: 12 eprint_status: archive userid: 6 dir: disk0/00/00/11/64 datestamp: 2012-02-24 10:07:42 lastmod: 2013-11-20 14:03:52 status_changed: 2012-02-24 10:07:42 type: article metadata_visibility: show creators_name: Caldarelli, Guido creators_name: Marchetti, Riccardo creators_name: Pietronero, Luciano creators_id: guido.caldarelli@imtlucca.it creators_id: creators_id: title: The fractal properties of Internet ispublished: pub subjects: GE subjects: QA75 subjects: QC divisions: EIC full_text_status: none keywords: PACS: 92.40.Fb Rivers, runoff, and streamflow; 05.10.-a Computational methods in statistical physics and nonlinear dynamics; abstract: In this paper we show that the Internet web, from a user's perspective, manifests robust scaling properties of the type P(n) propto n−τ, where n is the size of the basin connected to a given point, P represents the density of probability of finding n points downhill and τ = 1.9 ± 0.1 s a characteristic universal exponent. This scale-free structure is a result of the spontaneous growth of the web, but is not necessarily the optimal one for efficient transport. We introduce an appropriate figure of merit and suggest that a planning of few big links, acting as information highways, may noticeably increase the efficiency of the net without affecting its robustness. date: 2000-09 date_type: published publication: EPL (Europhysics Letters) volume: 52 number: 4 publisher: IOPscience pagerange: 386-391 id_number: 10.1209/epl/i2000-00450-8 refereed: TRUE issn: 0295-5075 official_url: http://dx.doi.org/10.1209/epl/i2000-00450-8 related_url_url: http://arxiv.org/abs/cond-mat/0009178 citation: Caldarelli, Guido and Marchetti, Riccardo and Pietronero, Luciano The fractal properties of Internet. EPL (Europhysics Letters), 52 (4). pp. 386-391. ISSN 0295-5075 (2000)