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	Why read if you can scan? Trigger scoping strategy for biographical fact extraction
	Yu, Dian ; Ji, Heng ; Li, Sujian ; Lin, Chin-Yew
	2015
英文摘要	The rapid growth of information sources brings a unique challenge to biographical information extraction: how to find specific facts without having to read all the words. An effective solution is to follow the human scanning strategy which keeps a specific keyword in mind and searches within a specific scope. In this paper, we mimic a scanning process to extract biographical facts. We use event and relation triggers as keywords, identify their scopes and apply type constraints to extract answers within the scope of a trigger. Experiments demonstrate that our approach outperforms state-of-the-art methods up to 26% absolute gain in F-score without using any syntactic analysis or external knowledge bases. ? 2015 Association for Computational Linguistics.; EI; 1203-1208
语种	英语
出处	Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, NAACL HLT 2015
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/436841]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Yu, Dian,Ji, Heng,Li, Sujian,et al. Why read if you can scan? Trigger scoping strategy for biographical fact extraction. 2015-01-01.

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