在经典的传染病SIR模型的基础上,结合网络谣言传播的特点,引入辟谣信息传播环节并考虑政府辟谣的延时效应,提出了一种改进的SIR模型,用以研究网络谣言爆发后无知者、信谣者和醒悟者这三类网民比例的变化规律,为控制网络舆情提供参考。 Based on the classic SIR model of infectious diseases, combined with the characteristics of network rumor transmission, the introduction of rumor information transmission links and considering the delay effect of government rumor, this paper proposes an improved SIR model to study the ignorance of network rumors , Rumor and wake-up of these three types of Internet users the proportion of the law of change, to provide a reference for the control of Internet public opinion.