摘要
首先,为了揭示事件演化规律和发展模式,研究了构建事理图谱的方法。采用知识图谱结构来描述事件间的逻辑结构关系,并对事件的多维属性进行画像;然后,提出了一种事理图谱构建的体系结构,包括文本语料采集、事件关系抽取模板构造、事件抽取与结构化、事件相似度计算与融合、事件触发词抽取与论元抽取模型构建、事件关系对构建以及图数据库存储,并利用该体系结构构建了顺承事理图谱、因果事理图谱、条件事理图谱、转折事理图谱和并发事理图谱。最后,通过试验结果验证了该方法的可行性。
Firstly,to reveal the evolution rule and the development mode of an event,a method of constructing event logic graph(ELG)is studied.The knowledge graph structure is adopted to de⁃scribe the logical structural relationships between the events,and the multi-dimensional attributes of the event are represented.Then,an architecture of ELG construction is proposed,including text cor⁃pus collection,event relationship extraction template construction,event extraction and structured representation,event similarity calculation and fusion,event trigger word extraction and argument ex⁃traction model construction,event relationship pair construction,and graph database storage.With the architecture,the serial ELG,the causal ELG,the conditional ELG,the transitional ELG,and the concurrent ELG are constructed.Finally,experiment result validates the method's feasibility.
作者
李彭伟
李亚钊
LI Pengwei;LI Yazhao(The 28th Research Institute of China Electronics Technology Group Corporation,Nanjing 210023,China)
出处
《指挥信息系统与技术》
2021年第5期54-60,69,共8页
Command Information System and Technology
基金
装备发展部“十三五”预研课题资助项目。
关键词
事理图谱
事件抽取
事件融合
事件关系抽取模板
event logic graph(ELG)
event extraction
event fusion
event relationship extraction template
