Search Results - subject:"SIR model"

SIHR rumor spreading model in social networks

Zhao, Laijun; Wang, Jiajia; Chen, Yucheng; Wang, Qin; … - In: Physica A: Statistical Mechanics and its Applications 391 (2012) 7, pp. 2444-2453

There are significant differences between rumor spreading and epidemic spreading in social networks, especially with consideration of the mutual effect of forgetting and remembering mechanisms. In this paper, a new rumor spreading model, Susceptible-Infected-Hibernator-Removed (SIHR) model, is...

Persistent link: https://www.econbiz.de/10010590107

Identifying influential nodes in complex networks

Chen, Duanbing; Lü, Linyuan; Shang, Ming-Sheng; Zhang, … - In: Physica A: Statistical Mechanics and its Applications 391 (2012) 4, pp. 1777-1787

Susceptible–Infected–Recovered (SIR) model to evaluate the performance by using the spreading rate and the number of infected …

Persistent link: https://www.econbiz.de/10011057185

Rumor spreading model with consideration of forgetting mechanism: A case of online blogging LiveJournal

Zhao, Laijun; Wang, Qin; Cheng, Jingjing; Chen, Yucheng; … - In: Physica A: Statistical Mechanics and its Applications 390 (2011) 13, pp. 2619-2625

called LiveJournal. In comparison with the Susceptible–Infected–Removed (SIR) model, we provide a more detailed and realistic … description of rumor spreading process with combination of forgetting mechanism and the SIR model of epidemics. A mathematical …

Persistent link: https://www.econbiz.de/10010588609

Disease spreading on fitness-rewired complex networks

Yoo, Jaewan; Lee, J.S.; Kahng, B. - In: Physica A: Statistical Mechanics and its Applications 390 (2011) 23, pp. 4571-4576

As people travel, human contact networks may change topologically from time to time. In this paper, we study the problem of epidemic spreading on this kind of dynamic network, specifically the one in which the rewiring dynamics of edges are carried out to preserve the degree of each node (called...

Persistent link: https://www.econbiz.de/10011059129

Phase diagram of epidemic spreading — unimodal vs. bimodal probability distributions

Lančić, Alen; Antulov-Fantulin, Nino; Šikić, Mile; … - In: Physica A: Statistical Mechanics and its Applications 390 (2011) 1, pp. 65-76

Disease spreading on complex networks is studied in SIR model. Simulations on empirical complex networks reveal two …

Persistent link: https://www.econbiz.de/10011060943

Multigroup SIR epidemic model with stochastic perturbation

Ji, Chunyan; Jiang, Daqing; Shi, Ningzhong - In: Physica A: Statistical Mechanics and its Applications 390 (2011) 10, pp. 1747-1762

In this paper, we discuss a multigroup SIR model with stochastic perturbation. We deduce the globally asymptotic …

Persistent link: https://www.econbiz.de/10011064032

SIR model with general distribution function in the infectious period

Gomes, Marcelo F.C.; Gonçalves, Sebastián - In: Physica A: Statistical Mechanics and its Applications 388 (2009) 15, pp. 3133-3142

The Susceptible-Infected-Removed or SIR model, as it was formulated by Kermack and McKendrick, is the key model for … results from them. In the present contribution we study the delay equations for the SIR model, comparing the solutions for … many typical cases with the simulation counterpart and with the standard SIR model. Using delay equations, where each …

Persistent link: https://www.econbiz.de/10011062172

Effects of superspreaders in spread of epidemic

Fujie, Ryo; Odagaki, Takashi - In: Physica A: Statistical Mechanics and its Applications 374 (2007) 2, pp. 843-852

Within the standard SIR model with spatial structure, we propose two models for the superspreader. In one model …

Persistent link: https://www.econbiz.de/10010591849

Distribution of infected mass in disease spreading in scale-free networks

Gallos, Lazaros K.; Argyrakis, Panos - In: Physica A: Statistical Mechanics and its Applications 330 (2003) 1, pp. 117-123

function of the infection probability q and the structural scaling exponent γ. We use the standard SIR model and investigate in …

Persistent link: https://www.econbiz.de/10011058233

Modeling of contact tracing in social networks

Tsimring, Lev S; Huerta, Ramón - In: Physica A: Statistical Mechanics and its Applications 325 (2003) 1, pp. 33-39

Spreading of certain infections in complex networks is effectively suppressed by using intelligent strategies for epidemic control. One such standard epidemiological strategy consists in tracing contacts of infected individuals. In this paper, we use a recently introduced generalization of the...

Persistent link: https://www.econbiz.de/10011064652