突发公共安全事件的舆情演化分析模型研究  

Research on the evolutionary analysis model of public opinion in public security emergencies

作　　者：邰杨芳 华国旻 昝彭 杨慧丽 李迎娟 TAI Yang-fang;HUA Guo-min;ZAN Peng;YANG Hui-li;LI Ying-juan(Shanxi Medical University Management School,Taiyuan 030001,China)

机构地区：[1]山西医科大学管理学院,太原030001

出　　处：《信息技术》2024年第8期100-107,112,共9页Information Technology

基　　金：山西省哲学社会科学规划(一般)课题(2021YJ117);山西省软科学研究计划一般项目(2017041035-7);中华医学会医学教育分会、中国高等教育学会医学教育专业委员会2020年医学教育研究立项课题一般项目(2020B-N11224B)。

摘　　要：为精准分析突发公共安全事件的舆情信息,文中提出一种舆情演化分析模型。首先利用生命周期理论将事件划分为多个发展阶段;其次利用LDA模型提取各阶段的公众关注主题;最后利用SnowNLP分析不同阶段的文本数据的情感倾向。以真实事件的评论文本为实验数据,挖掘公众的关注主题及情感态度,说明了模型的应用过程及可行性,为相关部门有效获取并及时处理舆情信息提供帮助。In order to accurately analyze the public opinion information of public security emergencies,this paper proposes a public opinion evolution analysis model.Firstly,the life cycle theory is used to divide the event into multiple development stages.Secondly,the LDA model is used to extract the theme of public concern at each stage.Finally,SnowNLP is used to analyze the emotional tendencies of text data at different stages.Taking the comment text of real events as the experimental data and mining the public’s focus and emotional attitude illustrate the application process and feasibility of the model,and provide help for rele⁃vant departments to effectively obtain and timely handle public opinion information.

关 键 词：LDA 网络舆情 多源数据 情感分析 舆情分析 

分 类 号：C912[经济管理] G206[社会学] R-05[文化科学—传播学]