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Research on the Spreading Model of Rumor and Anti-rumor Information Based on Game Theory

The spread of rumor and anti-rumor information is always accompanied by the participation of ordinary users and the government. Therefore, identifying the influence of ordinary user and government strategy on the process of network rumor and disinformation propagation can effectively improve the effect of network rumor control. In this paper, a spreading model of rumor and anti-rumor information is introduced. Then, the mean-field equations of models to describe their dynamics is derived and stability analysis of the evolutionary game is shown. At last, numerical simulations are performed to explore the impact of ordinary users and government strategies on rumor spreading. The simulation results show that: ordinary users choose to believe the anti-rumor information strategy can reduce the scope of rumor spreading; the social benefit brought by the government's active anti-rumor strategy can not only reduce the number of rumor spreaders, but also promote the spread of anti-rumor information; the ordinary users and the government strategies affect each other in the process of rumor and anti-rumor information spreading, the greater the punishment intensity of the government, the fluctuation and neutrality of ordinary users and government strategies will occur.