Abstract
On account of the complexity and uncertainty in cyberspace competition, cyber ecosystem is brought forth to meet the requirements of cyberspace security and complex adaptive system. Herein, a novel information diffusion model is presented with the change of notes based on Susceptible-Escaped-Infected-Removed-Quarantined-Susceptible (SEIQRS). In detail, the process and mechanism of nodes increasing and decreasing are considered upon traditional epidemic and information diffusion model, and the system dynamics equations are derived. Via the criterion of Routh-Hurwitz stability, the stability conditions are further investigated, as well as the corresponding requirements. Theoretical research and simulations demonstrate that in an open cyber ecosystem the proposed information diffusion model can be well controlled by modulating the number of nodes in the case of node increasing and decreasing.
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