Medo, Matúš and Cimini, Giulio and Gualdi, Stanislao Temporal Effects in the Growth of Networks. Physical Review Letters, 107. p. 238701. ISSN 0031-9007 (2011)
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Abstract
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.
| Item Type: | Article |
|---|---|
| Identification Number: | https://doi.org/10.1103/PhysRevLett.107.238701 |
| Subjects: | H Social Sciences > H Social Sciences (General) Q Science > QA Mathematics |
| Research Area: | Economics and Institutional Change |
| Depositing User: | Caterina Tangheroni |
| Date Deposited: | 06 Nov 2015 11:07 |
| Last Modified: | 06 Nov 2015 11:07 |
| URI: | http://eprints.imtlucca.it/id/eprint/2842 |
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