突发公共事件网络新闻文本集信息关联及可视化

Research on the Visualization and the Information Association of the Special News Texts Set of Public Emergencies

【目的/意义】为了直观清晰的再现突发公共事件的整体状况与演化历程,为决策制定提供参考,本文对其网络新闻文本集信息关联及可视化进行了研究。【方法/过程】本文首先界定了信息元的概念,对其关联规则进行了分析,然后以天津港爆炸事故为例进行了实证研究。【结果/结论】研究结果表明,排名前30节点的节点度、特征向量中心性、中介中心性变化趋势基本一致,这些信息是天津港爆炸事故公众的关注焦点;随着时间的演变,公众对该突发事件的关注度与关注点也在发生变化。

[ Purpose/significance ] To get the the general situation and change of Public Emergencies, and to be applicable for decision-making, the paper studies the information association and the visualization of the special news texts set of pub- lic emergencies.[Method/process]Firstly, the paper defines the concept of information element, and studies the association rules of information elements.Then, it takes the Tianjin Port explosion news texts set as an example to do a empirical study. [Result/conclusion] The results show that the top 30 nodes of the degree centrality, between centrality and eigenvector cen- trality have the same trend. These information is the public focus. As time goes by, the public focus is changing.