Temporal effects in the growth of networks
- Medo, Matúš Physics Department, University of Fribourg, Switzerland
- Cimini, Giulio Physics Department, University of Fribourg, Switzerland
- Gualdi, Stanislao Physics Department, University of Fribourg, Switzerland
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01.12.2011
Published in:
- Physical Review Letters. - 2011, vol. 107, no. 23, p. 238701
English
We show that to explain the growth of the citation network by preferential attachment (PA), one has to accept that individual nodes exhibit heterogeneous fitness values that decay with time. While previous PA-based models assumed either heterogeneity or decay in isolation, we propose a simple analytically treatable model that combines these two factors. Depending on the input assumptions, the resulting degree distribution shows an exponential, log-normal or power-law decay, which makes the model an apt candidate for modeling a wide range of real systems.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Physique
- Language
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- English
- Classification
- Physics
- License
- License undefined
- Identifiers
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- RERO DOC 28490
- DOI 10.1103/PhysRevLett.107.238701
- Persistent URL
- https://folia.unifr.ch/unifr/documents/302153
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