突发事件网络舆情主题演化聚焦特征研究——以“河南暴雨事件”为例  

Research on the Theme Evolution Focus Characteristics of Network Public Opinion on Emergencies——Taking“Henan Rainstorm Event”as an Example

作　　者：李燕凌[1] 伍可欣 LI Yanling;WU Kexin(School of Public Administration and Law,Hunan Agricultural University,Changsha 410128,China)

机构地区：[1]湖南农业大学公共管理与法学学院,湖南长沙410128

出　　处：《灾害学》2025年第1期207-212,共6页Journal of Catastrophology

基　　金：国家自然科学基金面上项目“农村重大突发性公共卫生事件应急能力形成机理与提升路径研究”(72274059)。

摘　　要：通过生命周期理论,对突发事件网络舆情情感变化推动主题演化聚焦的特征进行分阶段研究,有利于了解政府和媒体如何进行突发事件网络舆情引导。该文以“河南暴雨事件”为例,运用情感词典识别各阶段情感倾向,运用LDA模型分析各阶段舆情主题,结合生命周期理论划分舆情生命周期,总结突发事件网络舆情情感变化推动主题随生命周期演化聚焦的特征。研究表明,在潜伏期和萌动期,网民情感由负面转向中性,主题聚焦于应急保障;加速期和成熟期,情感由负面转向正面,主题关注应急救援;消退期,情感以中性和正面为主,主题转向应急修复。政府和媒体在各阶段有效引导了舆情。研究为舆情监管部门提供了网民情感变化与主题演化的洞察,为提高舆情引导能力提供了方法指导。Through the life cycle theory,it is beneficial to understand how the government and the media guide the online public opinion of emergencies by studying the characteristics of the emotional changes of online public opinion of emergencies that promote the theme evolution focus in stages.Taking the Henan rainstorm event as an example,the sentiment dictionary is used to identify the emotional tendency of each stage,and by using the LDA model to analyze the topic of public opinion at each stage,combining the life cycle theory to divide the life cycle of public opinion,the characteristics of the emotional change of the emergency network public opinion are summarized to promote the focus of the topic with the life cycle evolution.The research shows that the government and the media have played a role in guiding public opinion at each stage.During the incubation period and budding period,the emotions of Internet users are transformed from negative to neutral emotions,and the theme of public opinion is promoted to focus on emergency security and other aspects.And during the acceleration period and maturity period,the emotions of Internet users changed from negative to positive emotions,and promoted the theme of public opinion to focus on emergency rescue and other aspects.In the fading period,the neutral and positive emotions of netizens were spread,and the theme of public opinion was promoted to focus on emergency rescue and repair.The research is helpful for the public opinion supervision department to clarify the focus characteristics of the theme evolution driven by the changes of Internet users’emotions in the development life cycle of public opinion events;Moreover,the analysis method of sentiment tendency based on sentiment dictionary and the topic analysis method based on LDA model can play a certain guiding role for the public opinion management department to improve the ability of public opinion guidance.

关 键 词：突发事件 网络舆情 主题演化 

分 类 号：X433[环境科学与工程—灾害防治] X45X915.5