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Título: | Aging in binary-state models: The Threshold model for complex contagion |
Autor: | Abella, David CSIC ORCID; San Miguel, Maxi CSIC ORCID ; Ramasco, José J. CSIC ORCID | Fecha de publicación: | 1-feb-2023 | Editor: | American Physical Society | Citación: | Physical Review E 107(2): 024101 (2023) | Resumen: | We study the non-Markovian effects associated with aging for binary-state dynamics in complex networks. Aging is considered as the property of the agents to be less prone to change their state the longer they have been in the current state, which gives rise to heterogeneous activity patterns. In particular, we analyze aging in the Threshold model, which has been proposed to explain the process of adoption of new technologies. Our analytical approximations give a good description of extensive Monte Carlo simulations in Erdős-Rényi, random-regular and Barabási-Albert networks. While aging does not modify the cascade condition, it slows down the cascade dynamics towards the full-adoption state: the exponential increase of adopters in time from the original model is replaced by a stretched exponential or power law, depending on the aging mechanism. Under several approximations, we give analytical expressions for the cascade condition and for the exponents of the adopters' density growth laws. Beyond random networks, we also describe by Monte Carlo simulations the effects of aging for the Threshold model in a two-dimensional lattice. | Versión del editor: | https://doi.org/10.1103/PhysRevE.107.024101 | URI: | http://hdl.handle.net/10261/338840 | DOI: | 10.1103/PhysRevE.107.024101 | ISSN: | 2470-0045 | E-ISSN: | 2470-0053 |
Aparece en las colecciones: | (IFISC) Artículos |
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complex-contagion.pdf | 2,3 MB | Adobe PDF | Visualizar/Abrir |
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