Hierarchical Annotation Event Extraction Method in Multiple Scenarios

doi:10.1155/2021/8899852

	Hierarchical Annotation Event Extraction Method in Multiple Scenarios
	Wang, Shi 1; Wang, Zhujun 1,2; Jiang, Yi 2,3; Wang, Huayu 4
刊名	WIRELESS COMMUNICATIONS & MOBILE COMPUTING
	2021-03-19
卷号	2021 页码:9
ISSN号	1530-8669
DOI	10.1155/2021/8899852
英文摘要	In the event extraction task, considering that there may be multiple scenarios in the corpus and an argument may play different roles under different triggers, the traditional tagging scheme can only tag each word once, which cannot solve the problem of argument overlap. A hierarchical tagging pipeline model for Chinese corpus based on the pretrained model Bert was proposed, which can obtain the relevant arguments of each event in a hierarchical way. The pipeline structure is selected in the model, and the event extraction task is divided into event trigger classification and argument recognition. Firstly, the pretrained model Bert is used to generate the feature vector and transfer it to bidirectional gated recurrent unit+conditional random field (BiGRU+CRF) model for trigger classification; then, the marked event type features are spliced into the corpus as known features and then passed into BiGRU+CRF for argument recognition. We evaluated our method on DUEE, combined with data enhancement and mask operation. Experimental results show that our method is improved compared with other baselines, which prove the effectiveness of the model in Chinese corpus.
资助项目	National Natural Science Foundation of China[61702234] ; National Key Research and Development Program[2017YFB1002300] ; National Key Research and Development Program[2018YFC1700302]
WOS研究方向	Computer Science ; Engineering ; Telecommunications
语种	英语
出版者	WILEY-HINDAWI
WOS记录号	WOS:000636232600002
内容类型	期刊论文
源URL	[http://119.78.100.204/handle/2XEOYT63/16719]
专题	中国科学院计算技术研究所
通讯作者	Wang, Zhujun
作者单位	1.Chinese Acad Sci, Inst Comp Technol, Beijing 100190, Peoples R China 2.Yangzhou Univ, Sch Informat Engn, Yangzhou 225127, Jiangsu, Peoples R China 3.Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Shanghai 200240, Peoples R China 4.Army Engn Univ, Informat Engn Coll, Grad Sch, Nanjing 210007, Peoples R China
推荐引用方式 GB/T 7714	Wang, Shi,Wang, Zhujun,Jiang, Yi,et al. Hierarchical Annotation Event Extraction Method in Multiple Scenarios[J]. WIRELESS COMMUNICATIONS & MOBILE COMPUTING,2021,2021:9.
APA	Wang, Shi,Wang, Zhujun,Jiang, Yi,&Wang, Huayu.(2021).Hierarchical Annotation Event Extraction Method in Multiple Scenarios.WIRELESS COMMUNICATIONS & MOBILE COMPUTING,2021,9.
MLA	Wang, Shi,et al."Hierarchical Annotation Event Extraction Method in Multiple Scenarios".WIRELESS COMMUNICATIONS & MOBILE COMPUTING 2021(2021):9.