Articles producció científica> Enginyeria Informàtica i Matemàtiques

Analysis of the structure of complex networks at different resolution levels

  • Dades identificatives

    Identificador: imarina:5120451
    Autors:
    Arenas, AFernandez, AGomez, S
    Resum:
    Modular structure is ubiquitous in real-world complex networks, and its detection is important because it gives insights into the structure- functionality relationship. The standard approach is based on the optimization of a quality function, modularity, which is a relative quality measure for the partition of a network into modules. Recently, some authors (Fortunato and Barthélemy 2007 Proc. Natl Acad. Sci. USA 104 36 and Kumpula et al 2007 Eur. Phys. J. B 56 41) have pointed out that the optimization of modularity has a fundamental drawback: the existence of a resolution limit beyond which no modular structure can be detected even though these modules might have their own entity. The reason is that several topological descriptions of the network coexist at different scales, which is, in general, a fingerprint of complex systems. Here, we propose a method that allows for multiple resolution screening of the modular structure. The method has been validated using synthetic networks, discovering the predefined structures at all scales. Its application to two real social networks allows us to find the exact splits reported in the literature, as well as the substructure beyond the actual split. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
  • Altres:

    Autor segons l'article: Arenas, A; Fernandez, A; Gomez, S
    Departament: Enginyeria Informàtica i Matemàtiques
    e-ISSN: 1367-2630
    Autor/s de la URV: Arenas Moreno, Alejandro / Fernández Sabater, Alberto / Gómez Jiménez, Sergio
    Resum: Modular structure is ubiquitous in real-world complex networks, and its detection is important because it gives insights into the structure- functionality relationship. The standard approach is based on the optimization of a quality function, modularity, which is a relative quality measure for the partition of a network into modules. Recently, some authors (Fortunato and Barthélemy 2007 Proc. Natl Acad. Sci. USA 104 36 and Kumpula et al 2007 Eur. Phys. J. B 56 41) have pointed out that the optimization of modularity has a fundamental drawback: the existence of a resolution limit beyond which no modular structure can be detected even though these modules might have their own entity. The reason is that several topological descriptions of the network coexist at different scales, which is, in general, a fingerprint of complex systems. Here, we propose a method that allows for multiple resolution screening of the modular structure. The method has been validated using synthetic networks, discovering the predefined structures at all scales. Its application to two real social networks allows us to find the exact splits reported in the literature, as well as the substructure beyond the actual split. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
    Àrees temàtiques: Química Psicología Physics, multidisciplinary Physics and astronomy (miscellaneous) Physics and astronomy (all) Medicina ii Materiais Matemática / probabilidade e estatística Interdisciplinar General physics and astronomy Ensino Engenharias iv Engenharias iii Engenharias i Ciências biológicas i Ciência da computação Biotecnología Astronomia / física
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    Adreça de correu electrònic de l'autor: alberto.fernandez@urv.cat sergio.gomez@urv.cat alexandre.arenas@urv.cat
    Identificador de l'autor: 0000-0002-1241-1646 0000-0003-1820-0062 0000-0003-0937-0334
    Data d'alta del registre: 2024-09-28
    Volum de revista: 10
    Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
    Enllaç font original: https://iopscience.iop.org/article/10.1088/1367-2630/10/5/053039
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referència a l'article segons font original: New Journal Of Physics. 10 053039-
    Referència de l'ítem segons les normes APA: Arenas, A; Fernandez, A; Gomez, S (2008). Analysis of the structure of complex networks at different resolution levels. New Journal Of Physics, 10(), 053039-. DOI: 10.1088/1367-2630/10/5/053039
    DOI de l'article: 10.1088/1367-2630/10/5/053039
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2008
    Tipus de publicació: Journal Publications
  • Paraules clau:

    Physics and Astronomy (Miscellaneous),Physics, Multidisciplinary
    Química
    Psicología
    Physics, multidisciplinary
    Physics and astronomy (miscellaneous)
    Physics and astronomy (all)
    Medicina ii
    Materiais
    Matemática / probabilidade e estatística
    Interdisciplinar
    General physics and astronomy
    Ensino
    Engenharias iv
    Engenharias iii
    Engenharias i
    Ciências biológicas i
    Ciência da computação
    Biotecnología
    Astronomia / física
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