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A modified epidemiological model for computer viruses

delete2009-07-01
delete186
PRE
AI
J
José Roberto Castilho Piqueira *
V
Vanessa O. Araujo
DOI:10.1016/j.amc.2009.03.023delete
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摘要

摘要

En 中文
Since the computer viruses pose a serious problem to individual and corporative computer systems, a lot of effort has been dedicated to study how to avoid their deleterious actions, trying to create anti-virus programs acting as vaccines in personal computers or in strategic network nodes. Another way to combat viruses propagation is to establish preventive policies based on the whole operation of a system that can be modeled with population models, similar to those that are used in epidemiological studies. Here, a modified version of the SIR (Susceptible-Infected-Removed) model is presented and how its parameters are related to network characteristics is explained. Then, disease-free and endemic equilibrium points are calculated, stability and bifurcation conditions are derived and some numerical simulations are shown. The relations among the model parameters in the several bifurcation conditions allow a network design minimizing viruses risks. (C) 2009 Elsevier Inc. All rights reserved.
Keyword:
Bifurcation
Disease-free
Endemic
Equilibrium
SIR
Stability

期刊

Applied Mathematics and Computation 封面图
Applied Mathematics and Computation
IF:
3.4
论文数:
2.3W
被引数:
3.3W

机构

U
universidade de sao paulo
学者数:
10.6W
论文数: 6.7W
被引数: 93
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