Extracting Events and Their Relations from Texts: A Survey on Recent Research Progress and Challenges | |
Kang Liu2,3; Yubo Chen2,3; Jian Liu1; Xinyu Zuo2,3; Jun Zhao2,3 | |
刊名 | AI Open
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2020 | |
卷号 | 1期号:1页码:22-39 |
关键词 | Event extraction Event relation extraction Knowledge graph |
ISSN号 | 2666-6510 |
DOI | 10.1016/j.aiopen.2021.02.004 |
英文摘要 | Event is a common but non-negligible knowledge type. How to identify events from texts, extract their arguments, even analyze the relations between different events are important for many applications. This paper summaries some constructed event-centric knowledge graphs and the recent typical approaches for event and event relation extraction, besides task description, widely used evaluation datasets, and challenges. Specifically, in the event extraction task, we mainly focus on three recent important research problems: 1) how to learn the textual semantic representations for events in sentence-level event extraction; 2) how to extract relations across sentences or in a document level; 3) how to acquire or augment labeled instances for model training. In event relation extraction, we focus on the extraction approaches for three typical event relation types, including coreference, causal and temporal relations, respectively. Finally, we give out our conclusion and potential research issues in the future. |
URL标识 | 查看原文 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.ia.ac.cn/handle/173211/44865] ![]() |
专题 | 模式识别国家重点实验室_自然语言处理 |
通讯作者 | Kang Liu |
作者单位 | 1.School of Computer and Information Technology, Beijing Jiaotong University 2.National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences 3.School of Artificial Intelligence, University of Chinese Academy of Sciences |
推荐引用方式 GB/T 7714 | Kang Liu,Yubo Chen,Jian Liu,et al. Extracting Events and Their Relations from Texts: A Survey on Recent Research Progress and Challenges[J]. AI Open,2020,1(1):22-39. |
APA | Kang Liu,Yubo Chen,Jian Liu,Xinyu Zuo,&Jun Zhao.(2020).Extracting Events and Their Relations from Texts: A Survey on Recent Research Progress and Challenges.AI Open,1(1),22-39. |
MLA | Kang Liu,et al."Extracting Events and Their Relations from Texts: A Survey on Recent Research Progress and Challenges".AI Open 1.1(2020):22-39. |
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