Temporal effects in the growth of networks
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Medo, Matúš
Physics Department, University of Fribourg, Switzerland
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Cimini, Giulio
Physics Department, University of Fribourg, Switzerland
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Gualdi, Stanislao
Physics Department, University of Fribourg, Switzerland
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.
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Faculty
- Faculté des sciences et de médecine
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Department
- Département de Physique
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Language
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Classification
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Physics
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License
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License undefined
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Identifiers
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Persistent URL
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https://folia.unifr.ch/unifr/documents/302153
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