Search

Article

x

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

Spread dynamics of infectious disease in growing scale-free networks

Weng Wen-Guo Fan Wei-Cheng Ni Shun-Jiang

Spread dynamics of infectious disease in growing scale-free networks

Weng Wen-Guo, Fan Wei-Cheng, Ni Shun-Jiang
PDF
Get Citation

(PLEASE TRANSLATE TO ENGLISH

BY GOOGLE TRANSLATE IF NEEDED.)

Metrics
  • Abstract views:  4162
  • PDF Downloads:  1246
  • Cited By: 0
Publishing process
  • Received Date:  29 March 2008
  • Accepted Date:  14 July 2008
  • Published Online:  05 March 2009

Spread dynamics of infectious disease in growing scale-free networks

  • 1. (1)清华大学工程物理系,公共安全研究中心,北京 100084; (2)清华大学工程物理系,公共安全研究中心,北京 100084;清华大学航天航空学院,北京 100084

Abstract: Some fundamental social structures in human population, such as household, dormitory, and colleague, are of significant importance for epidemic spreading. In this paper, a growth model of scale-free network incorporating these local structures is introduced, in which both the node degree and the local structure degree follow a power-law distribution with the exponent depending on the size of the local structure. The existence of the local structures also results in the positive correlation between the nodes degree, which is a particularly key feature of social networks. By means of analysis and simulation, we study the effects of network structure on the SIS(susceptible-infected-susceptible) epidemic dynamics, and obtain the epidemic threshold and the phase diagram of prevalence, indicating that the propagation is coupled by the local infection process within local structure and the global infection process between local structures, both of which are governed by the network features and the transmission mechanism. These results are of scientific significance to the control of infectious diseases.

Catalog

    /

    返回文章
    返回