Abstract for: The Evolutionary Public Opinions on Social Media in the Context of Infodemic: an SD modelling approach

Abstract：In the context of infodemics, negative opinions were rapidly fermented on the Internet, causing significant mental damage to general public, especially when developed into cyberbullying. Therefore, it is of significant importance to study the evolution of public opinions on social media. The SHIAIBOR model is developed to investigate the propagation of negative opinion during pandemic. The model considers the competitive spread of both position and negative opinion from the general public, and social media and government participation. Simulation results showed that increasing the conversion rate of the general public can alleviate the overwhelming spread of negative opinion, while social media participation might cause a second wave of negative opinion. Moreover, government participation can not reduce the peak of negative opinion but can reduce the time period that negative opinion prevalence.