刘 炜,刘菲京,王 东,刘宗田. 一种基于事件本体的文本事件要素提取方法[J]. 中文信息学报, 2016, 30(4): 167-175.
LIU Wei, LIU Feijing, WANG Dong, LIU Zongtian. A Text Event Elements Extraction Method Based on Event Ontology. , 2016, 30(4): 167-175.
一种基于事件本体的文本事件要素提取方法
刘 炜,刘菲京,王 东,刘宗田
上海大学 计算机科学与工程学院,上海 200444
A Text Event Elements Extraction Method Based on Event Ontology
LIU Wei, LIU Feijing, WANG Dong, LIU Zongtian
School of Computer Engineering and Science, Shanghai University, Shanghai 200444, China
Abstract：Extraction of event elements is a challenge in event-based information extraction. Currently, the main solutions are based on machine learning method which is subject to the corpus sparsity. This paper proposes an event element extraction method based on event ontology. Event elements reasoning process includes two steps: Firstly, elements values are initially complemented according to positional relations between event elements words and event indicators words, selecting the event with the highest confidence as the seed event; Secondly, search the seed events to for their event classes restrictions and non-taxonomic relations from event ontology, to complement and revise event elements. The experimental results show that this method can improve the accuracy of event elements extraction.
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2016, Vol. 30 
