摘要
事件抽取是信息抽取领域的一个重要研究方向,在情报收集、知识提取、文档摘要、知识问答等领域有着广泛应用。对当前事件抽取领域研究得较多的元事件抽取进行了综述。首先,简要介绍了元事件和元事件抽取的基本概念,以及元事件抽取的主要实现方法。然后,重点阐述了元事件抽取的主要任务,详细介绍了元事件检测过程,并对其他相关任务进行了概述。最后,总结了元事件抽取面临的问题,在此基础上展望了元事件抽取的发展趋势。
Event extraction is an important branch of information extraction.It is widely used in intelligence collection,knowledge extraction,document summarization,question answering,etc.This paper presented a survey on meta-event extraction which attracts most attention in event extraction.It firstly interpreted the basic concepts of meta-event and meta-event extraction and briefly introduced the main implementation methods of meta-event extraction.Then it focused on the tasks of meta-event extraction,highlighted the task of meta-event identification,and briefly introduced other tasks.Finally,it summarized the problems of current meta-event extraction and predicted the trend of meta-event extraction.
作者
高李政
周刚
罗军勇
兰明敬
GAO Li-zheng;ZHOU Gang;LUO Jun-yong;LAN Ming-jing(State Key Laboratory of Mathematical Engineering and Advanced Computing,Zhengzhou 450001,China)
出处
《计算机科学》
CSCD
北大核心
2019年第8期9-15,共7页
Computer Science
基金
国家自然科学基金项目(61309007)资助
关键词
元事件抽取
信息提取
元事件检测
触发词
Meta-event extraction
Information extraction
Meta-event identification
Trigger
