[Purpose/significance]The operation mode of short video makes netizens'discussion of public opinion events gradually converge to the internal comment section of a single work,therefore,when the timeliness of the front-row"hot comment"information fails,it will interfere with the evolution trend of public opinion events under the support of information cascade.Based on this,the paper explores the evolution process and influence of public opinion,and provides a theoretical basis for short video public opinion governance.[Methods/processes]The study improves traditional SIR model by adding the propagation paths under the influence of information cascade.Considering the turning points in the process of event development,it divides them into the positive and negative turning points of the event,and constructs the simulations dynamic simulation in the corresponding situation to explore the evolution law of public opinion.[Results/conclusions]The cascading path of information dissemination caused by outdated front-row"hot comment"negatively affects the evolution of public opinion.Compared with positive turn,the influence cascade has a more significant impact on the negative turn of public opinion events,and the stronger the influence of the front-ranked"hot comment"account,the more significant the influence on public opinion events.
关键词
信息级联/短视频舆情/改进SIR模型/舆情演化
Key words
information cascade/short video public opinion/improved SIR model/public opinion evolution
万方数据