Exploració per autor "Ferreira, Silvio C."
Ara es mostren els items 1-7 de 7
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Collective versus hub activation of epidemic phases on networks
Ferreira, Silvio C.; Salvador, Renan; Pastor Satorras, Romualdo (AMER PHYSICAL SOC, 2016-03-14)
Article
Accés restringit per política de l'editorialWe consider a general criterion to discern the nature of the threshold in epidemic models on scale-free (SF) networks. Comparing the epidemic lifespan of the nodes with largest degrees with the infection time between them, ... -
Effects of local population structure in a reaction-diffusion model of a contact process on metapopulation networks
de Souza Mata, Angelica; Ferreira, Silvio C.; Pastor Satorras, Romualdo (2013-10-30)
Article
Accés obertWe investigate the effects of local population structure in reaction-diffusion processes representing a contact process (CP) on metapopulations represented as complex networks. Considering a model in which the nodes of a ... -
Epidemic thresholds of the susceptible-infected-susceptible model on networks: a comparison of numerical and theoretical results
Ferreira, Silvio C.; Castellano, Claudio; Pastor Satorras, Romualdo (2012-10-15)
Article
Accés obertRecent work has shown that different theoretical approaches to the dynamics of the susceptible-infected-susceptible (SIS) model for epidemics lead to qualitatively different estimates for the position of the epidemic ... -
Phase transitions with infinitely many absorbing states in complex networks
Sander, Renan; Ferreira, Silvio C.; Pastor Satorras, Romualdo (2013-02-27)
Article
Accés obertWe investigate the properties of the threshold contact process (TCP), a process showing an absorbing-state phase transition with infinitely many absorbing states, on random complex networks. The finite-size scaling exponents ... -
Quantifying echo chamber effects in information spreading over political communication networks
Cota, Wesley; Ferreira, Silvio C.; Pastor Satorras, Romualdo; Starnini, Michele (2019-12-09)
Article
Accés obertEcho chambers in online social networks, in which users prefer to interact only with ideologically-aligned peers, are believed to facilitate misinformation spreading and contribute to radicalize political discourse. In ... -
Quasistationary analysis of the contact process on annealed scale-free networks
Ferreira, Silvio C.; Ferreira, Ronan S.; Pastor Satorras, Romualdo (2011)
Article
Accés obertWe present an analysis of the quasistationary (QS) state of the contact process (CP) on annealed scale-free networks using a mapping of the CP dynamics in a one-step process and analyzing numerically and analytically the ... -
Quasistationary simulations of the contact process on quenched networks
Ferreira, Silvio C.; Ferreira, Ronan S.; Castellano, Claudio; Pastor Satorras, Romualdo (2011)
Article
Accés obertWe present high-accuracy quasistationary (QS) simulations of the contact process in quenched networks, built using the configuration model with both structural and natural cutoffs. The critical behavior is analyzed in the ...