%0 Journal Article
%T SEIR Computer Virus Propagation Model Based on Direct Immunization
%A PENG Mei
%A LI Chuan-dong
%A HE Xing
%J Journal of Chongqing Normal University
%D 2013
%I Chongqing Normal University
%X The research on the features of computer virus can provide the theory basis for controlling the computer viruses.According to the latent features of computer virus£¬a SEIR computer virus propagation model is put forward based on direct immunization.Using the theory of differential equation£¬it indicates that the value of threshold R0 play a role in the spreading of computer virus.Through improving immunization rates£¬R0 can be controlled effectively£¬and further control the spreading of computer virus.Though qualitative analysis proved that£º1) The virus free equilibrium P0 is locally asymptotically stable if R0<1.whereas is unstable if R0>1 and =2) the viral equilibrium P*is locally asymptotically stable if R0>1.Numerical simulations are given to support results of 1) and 2).
%K computer virus£»dynamical model£»equilibrium point£»propagation threshold
%U http://journal.cqnu.edu.cn/1301/pdf/130117.pdf