摘要
【目的】探索同类突发公共卫生事件中微博用户在各话题类型上的共振规律。【方法】以朗之万方程为基础构建突发公共卫生事件子话题的随机共振模型,以新浪微博上关于山东问题疫苗事件和长春长生狂犬病疫苗事件的微博数据为例,通过计算其话题因素、地域因素、态度值和话题热度,分析同类突发事件中微博话题共振规律。【结果】在同类突发公共卫生事件中,事件进展、群众意见、政府回应等话题能够引起明显的话题共振,而知识科普与事后措施相关的微博话题则不能引起共振。【局限】仅以微博为单一数据源对同类型关联事件中相关话题的共振规律进行研究,研究结论有待使用其他数据和多类型案例进一步验证。【结论】同类突发公共卫生事件微博话题间存在共振现象,这一现象与相关微博数量、话题内容等因素有关。
[Objective]This study aims to explore the resonance patterns of micro-blog users on different topics from similar public health emergencies.[Methods]We constrcted a random resonance model for sub-topics of public health emergencies based on the Langevin equation and collected more than 170,000 microblog entries on the Shandong vaccine incident and the Changchun Changsheng vaccine incident from the Sina Weibo platform.We analyzed the resonance pattern of micro-blog topics by calculating topic factors,geography factors,attitude values and topic salience.[Results]The topics about the progress of events,the public opinion,and the government response generated obvious resonance.However,the topics on the background knowledge and postmeasures failed to cause resonance from similar public health emergencies.[Limitations]We only analyzed the resonance patterns with micro-blogging topics on two similar events.More research is needed to examine our findings with other cases.[Conclusions]Resonances exist between the topics of similar public health emergencies,which are related to the number of relevant micro-blog entries,topic contents and other factors.
作者
梁艳平
安璐
刘静
Liang Yanping;An Lu;Liu Jing(Center for Studies of Information Resources,Wuhan University,Wuhan 430072,China;School of Information Management,Wuhan University,Wuhan 430072,China)
出处
《数据分析与知识发现》
CSSCI
CSCD
北大核心
2020年第2期122-133,共12页
Data Analysis and Knowledge Discovery
基金
教育部哲学社会科学研究重大课题攻关项目“提高反恐怖主义情报信息工作能力对策研究”(项目编号:17JZD034)
国家自然科学基金重大课题“国家安全大数据综合信息集成与分析方法”(项目编号:71790612)
国家自然科学基金青年项目“突发公共卫生事件社交媒体信息主题演化与影响力建模”(项目编号:71603189)的研究成果之一.
关键词
微博话题
随机共振
朗之万方程
网络舆情
突发事件
同类事件
Microblogging Topics
Stochastic Resonance
Langevin Equation
Online Public Opinions
Emergency
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