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| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.creator | Woolcock, Anthony | - |
| dc.creator | Connaughton, Colm | - |
| dc.creator | Merali, Yasmin | - |
| dc.creator | Vazquez, Federico | - |
| dc.date | 2018-06-08T18:53:29Z | - |
| dc.date | 2018-06-08T18:53:29Z | - |
| dc.date | 2017-09 | - |
| dc.date | 2018-06-08T14:28:14Z | - |
| dc.date.accessioned | 2019-04-29T15:43:22Z | - |
| dc.date.available | 2019-04-29T15:43:22Z | - |
| dc.date.issued | 2017-09 | - |
| dc.identifier | Woolcock, Anthony; Connaughton, Colm; Merali, Yasmin; Vazquez, Federico; Fitness voter model: Damped oscillations and anomalous consensus; American Physical Society; Physical Review E; 96; 3; 9-2017; 1-14 | - |
| dc.identifier | 2470-0045 | - |
| dc.identifier | http://hdl.handle.net/11336/47941 | - |
| dc.identifier | CONICET Digital | - |
| dc.identifier | CONICET | - |
| dc.identifier.uri | http://rodna.bn.gov.ar:8080/jspui/handle/bnmm/300324 | - |
| dc.description | We study the dynamics of opinion formation in a heterogeneous voter model on a complete graph, in which each agent is endowed with an integer fitness parameter k ≥ 0 , in addition to its + or − opinion state. The evolution of the distribution of k -values and the opinion dynamics are coupled together, so as to allow the system to dynamically develop heterogeneity and memory in a simple way. When two agents with different opinions interact, their k -values are compared, and with probability p the agent with the lower value adopts the opinion of the one with the higher value, while with probability 1 − p the opposite happens. The agent that keeps its opinion (winning agent) increments its k -value by one. We study the dynamics of the system in the entire 0 ≤ p ≤ 1 range and compare with the case p = 1 / 2 , in which opinions are decoupled from the k -values and the dynamics is equivalent to that of the standard voter model. When 0 ≤ p < 1 / 2 , agents with higher k -values are less persuasive, and the system approaches exponentially fast to the consensus state of the initial majority opinion. The mean consensus time τ appears to grow logarithmically with the number of agents N , and it is greatly decreased relative to the linear behavior τ ∼ N found in the standard voter model. When 1 / 2 < p ≤ 1 , agents with higher k -values are more persuasive, and the system initially relaxes to a state with an even coexistence of opinions, but eventually reaches consensus by finite-size fluctuations. The approach to the coexistence state is monotonic for 1 / 2 < p < p o ≃ 0.8 , while for p o ≤ p ≤ 1 there are damped oscillations around the coexistence value. The final approach to coexistence is approximately a power law t − b ( p ) in both regimes, where the exponent b increases with p . Also, τ increases respect to the standard voter model, although it still scales linearly with N . The p = 1 case is special, with a relaxation to coexistence that scales as t − 2.73 and a consensus time that scales as τ ∼ N β , with β ≃ 1.45 . | - |
| dc.description | Fil: Woolcock, Anthony. University of Warwick; Reino Unido | - |
| dc.description | Fil: Connaughton, Colm. University of Warwick; Reino Unido. London Mathematical Laboratory; Reino Unido. University of California; Estados Unidos | - |
| dc.description | Fil: Merali, Yasmin. University of Hull; Reino Unido | - |
| dc.description | Fil: Vazquez, Federico. University of Warwick; Reino Unido. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos; Argentina | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.language | eng | - |
| dc.publisher | American Physical Society | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1103/PhysRevE.96.032313 | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/pre/abstract/10.1103/PhysRevE.96.032313 | - |
| dc.rights | info:eu-repo/semantics/openAccess | - |
| dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | - |
| dc.source | reponame:CONICET Digital (CONICET) | - |
| dc.source | instname:Consejo Nacional de Investigaciones Científicas y Técnicas | - |
| dc.source | instacron:CONICET | - |
| dc.subject | OPINION FORMATION | - |
| dc.subject | HETEROGENEOUS VOTER MODEL | - |
| dc.subject | STOCHASTIC PROCESS | - |
| dc.subject | INTRINSIC FITNESS | - |
| dc.subject | Otras Ciencias Físicas | - |
| dc.subject | Ciencias Físicas | - |
| dc.subject | CIENCIAS NATURALES Y EXACTAS | - |
| dc.title | Fitness voter model: Damped oscillations and anomalous consensus | - |
| dc.type | info:eu-repo/semantics/article | - |
| dc.type | info:eu-repo/semantics/publishedVersion | - |
| dc.type | info:ar-repo/semantics/articulo | - |
| Aparece en las colecciones: | CONICET | |
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