In the evolution of microblog public opinion,event theme and netizens’ emotion are very important factors,and they are also considered to be more influential evolution parameters and important public opinion governance links in recent years.In the governance of network public opinion,if the emotions of netizens who change with the theme of the event are not well guided and controlled,it will lead to a storm of public opinion,making the governance of public opinion more difficult.Therefore,this paper explores the evolution process of microblog public opinion from the content level,predicts the change of public opinion according to the interaction between theme and emotional mobilization,and helps the government and stakeholders to respond to public opinion quickly.Based on the literature review of online public opinion theme and emotion mobilization,evolution mechanism of public opinion and emotion rectification theory,this paper takes the evolution mechanism of public opinion as the research object,defines the emotion mobilization strategy mode in the event of "Yuya being raped",and identifies the theme characteristics of microblog articles through data collection,processing and word2 vec model construction,Then,the emotion dictionary is used to identify the emotion mobilization strategies in microblog article reviews.Finally,the theme features of microblog articles and the emotion mobilization strategies of corresponding reviews are combined and analyzed,and the impact of the changes of the two on the evolution mechanism of public opinion is finally obtained.The results show that there is no direct relationship between theme and emotional mobilization,but through emotion as the link between them.After the two-line logical analysis of emotion and theme,emotion and emotional mobilization,we finally get the logical relationship of positive evolution and negative containment in the evolution of public opinion.The change of emotional mobilization under the effect of theme indicates that the social nature and emotional route of events in microblog public opinion will affect the behavior of netizens and the development of public opinion;The theme change under the effect of emotional mobilization shows that when the needs of netizens to express themselves and seek collective belonging are met,they often take the way of emotional mobilization,and the theme change is often an important basis for the choice of emotional mobilization strategies.Therefore,it is a new way to build a public opinion response mechanism based on theme and emotion mobilization,so as to help the government and stakeholders respond to public opinion quickly. |