Joint effect of individual’s memory and attractiveness in temporal network on spreading dynamics

Mei Yang (), Bing Wang and Yuexing Han
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Mei Yang: School of Computer Engineering and Science, Shanghai University, No. 99, Shangda Road, Baoshan District, Shanghai 200-444, P. R. China
Bing Wang: School of Computer Engineering and Science, Shanghai University, No. 99, Shangda Road, Baoshan District, Shanghai 200-444, P. R. China
Yuexing Han: School of Computer Engineering and Science, Shanghai University, No. 99, Shangda Road, Baoshan District, Shanghai 200-444, P. R. China3Shanghai Institute for Advanced Communication and Data Science, Shanghai University, No. 99, Shangda Road, Baoshan District, Shanghai 200-444, P. R. China

International Journal of Modern Physics C (IJMPC), 2019, vol. 30, issue 01, 1-13

Abstract: Most real networks have been found to evolve dynamically. In addition, heterogeneity of interaction strengths and individual’s memory have been proved to be important to affect network evolution in the area of complex networks. Based on a recent extension of the activity-driven modeling framework, i.e. activity-driven model with attractiveness, where individuals are characterized by their activities and attractiveness, we propose a new temporal network model by considering individuals’ memory. Similar to the previous network model, we also investigate heterogeneous distributions and different correlations between the two variables (activity and attractiveness). By numerical simulations, we illustrate the impact of memory on epidemic spreading processes unfolding on the proposed model. We find that, when individuals’ attractiveness is fixed, memory does not cause dramatic change on the epidemic threshold in the SIR process, but it inhibits the epidemic spreading by reducing the infected ratio. While for the SIS process, in the case of uncorrelated and positive correlations between the two variables, memory facilitates the epidemic outbreaks by shrinking the epidemic threshold. When the two variables are negatively correlated, memory does not take obvious impact on the epidemic threshold. Besides, for the two processes unfolding on the network with and without memory, the propagation threshold decreases with the enhancement of the positive correlation, however, it almost does not get much influence from the negative correlation strength. It indicates that for the individuals with same activity, more attractive individuals will promote the disease spread. The findings deepen our understanding of the role of individuals’ memory and their attractiveness in the epidemic spreading process.

Keywords: Temporal network; individual’s memory; individual’s attractiveness; epidemic spreading process (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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DOI: 10.1142/S0129183119500116

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