Show simple item record

dc.contributor.authorPerra, N.
dc.contributor.authorGonçalves, B.
dc.contributor.authorPastor Satorras, Romualdo
dc.contributor.authorVespignani, Alessandro
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear
dc.date.accessioned2012-10-10T18:10:01Z
dc.date.created2012-06-25
dc.date.issued2012-06-25
dc.identifier.citationPerra, N. [et al.]. Activity driven modeling of time varying networks. "Scientific Reports", 25 Juny 2012, vol. 2, núm. 469, p. 1-7.
dc.identifier.issn2045-2322
dc.identifier.urihttp://hdl.handle.net/2117/16713
dc.description.abstractNetwork modeling plays a critical role in identifying statistical regularities and structural principles common to many systems. The large majority of recent modeling approaches are connectivity driven. The structural patterns of the network are at the basis of the mechanisms ruling the network formation. Connectivity driven models necessarily provide a time-aggregated representation that may fail to describe the instantaneous and fluctuating dynamics of many networks. We address this challenge by defining the activity potential, a time invariant function characterizing the agents' interactions and constructing an activity driven model capable of encoding the instantaneous time description of the network dynamics. The model provides an explanation of structural features such as the presence of hubs, which simply originate from the heterogeneous activity of agents. Within this framework, highly dynamical networks can be described analytically, allowing a quantitative discussion of the biases induced by the time-aggregated representations in the analysis of dynamical processes.
dc.format.extent7 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.lcshStatistical physics
dc.subject.lcshThermodynamics
dc.subject.lcshTheoretical physics
dc.subject.otherCOMPLEX NETWORKS
dc.subject.otherMARKOV GRAPHS
dc.subject.otherDYNAMICS
dc.subject.otherINTERNET
dc.subject.otherSYSTEMS
dc.subject.otherSPREAD
dc.titleActivity driven modeling of time varying networks
dc.typeArticle
dc.subject.lemacFísica estadística
dc.subject.lemacTermodinàmica
dc.contributor.groupUniversitat Politècnica de Catalunya. SIMCON - First-principles approaches to condensed matter physics: quantum effects and complexity
dc.identifier.doi10.1038/srep00469
dc.relation.publisherversionhttp://www.nature.com/srep/2012/120625/srep00469/pdf/srep00469.pdf
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac10839005
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
local.citation.authorPerra, N.; Gonçalves, B.; Pastor, R.; Vespignani, A.
local.citation.publicationNameScientific Reports
local.citation.volume2
local.citation.number469
local.citation.startingPage1
local.citation.endingPage7
dc.identifier.pmid22741058


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record