Research On The Spread Of Wechat Public Sentiment Virus Based On SIR Model

Since 1999,when 2G was launched in China,China's network has stepped into the 5G era within 20 years.With the rise of the Internet,a variety of network software is known and used by the public,Wechat is one of the widely used software.With the gradual formation and consolidation of domestic Internet users' usage habits on Wechat,wechat has gradually become an important field for social sentiment to erupt and spread,the study of public sentiment on Wechat has become an important research direction of journalism and communication.Among them,how to accurately grasp the spread characteristics of Wechat public opinion and study its diffusion mechanism has become an important issue of social governance.This article will discuss the spread characteristics of Wechat through literature review,and analyze the spread mechanism of wechat public sentiment based on the Sir Infectious Disease Model And based on the above data and analysis results to try to build a mechanism that can be used to guide public sentiment on Wechat.Finally,the author of this paper concludes the WeChat all kinds of public opinion,such as chatting,friends and all kinds of public,etc.These three kinds of public opinion has the "chain" and "more radiation" type of propagation characteristic,according to SIR epidemic model WeChat trend of public opinion diffusion is modeled after the draw,"rate" and "immunity" is the most factors to influence WeChat public opinion spread,finally from the pathogen,infection,transmission channel and the administrative department of the media literacy four aspects discussed the multivariate WeChat public opinion guiding idea.