摘要
突发公共事件对社会有严重的危害,通过对突发公共事件文本进行分析,可以辅助建立社会预警机制、提高突发公共事件的应急治理效率。由此,提出结合因果强度和扩充元组的突发公共事件事理图谱构建方法。在语料选取方面,选取新闻文本结合政策文本,保证语料的时效性和专业性。在事理图谱构建环节,基于直接因果关系词,结合语言学实现因果词扩充,根据扩充后的句法模式结合因果强度抽取因果事件句,并基于扩充后的语义元组实现事件抽取,对抽取得到的事件进行泛化和对齐,提高适用性。实验证明,该方法可以更有效地提取文本中的事件及其因果关系,据此构建的事理图谱能够体现国家应急预案文件中的治理思路,从而为辅助相关决策提供参考价值。
Public emergencies do serious harm to society,and analyzing the text of public emergencies can assist in the establishment of a social early-warning mechanism and improve the efficiency of emergency management of public emergencies.As a result,this paper proposes the construction method of public emergency event knowledge graph by combining causal intensity and expanded tuple.In terms of corpus selection,news texts and policy texts are selected to ensure the timeliness and specialization of the corpus.In the construction of event knowledge graph,based on the direct causal words,it combines with linguistics to realize causal word expansion.According to the expanded syntactic pattern combined with causal intensity,the paper extracts causal event sentences,realizes the event extraction based on the expanded semantic tuple,and finally generalizes and aligns the extracted events to improve the applicability.The experiment proves that the method can extract the events and their causal relations in the text more effectively,and the event knowledge graph constructed accordingly can reflect the governance ideas in the national emergency plan documents,thus providing reference value for assisting relevant decision-making.
作者
任俊玲
戴景劢
REN Junling;DAI Jingmai(School of Information Management,Beijing Information Science and Technology University,Beijing 100192,China)
出处
《计算机工程与应用》
北大核心
2025年第11期195-203,共9页
Computer Engineering and Applications
基金
教育部人文社会科学研究项目(20YJAZH046)。
