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	Lexicalized beam thresholding parsing with prior and boundary estimates
	Xiong, DY; Liu, Q; Lin, SX
刊名	Computational linguistics and intelligent text processing
	2005
卷号	3406页码:132-141
ISSN号	0302-9743
通讯作者	Xiong, dy()
英文摘要	We use prior and boundary estimates as the approximation of outside probability and establish our beam thresholding strategies based on these estimates. lexical items, e.g. head word and head tag, are also incorporated to lexicalized prior and boundary estimates. experiments on the penn chinese treebank show that beam thresholding with lexicalized prior works much better than that with unlexicalized prior. differentiating completed edges from incomplete edges paves the way for using boundary estimates in the edge-based beam chart parsing. the beam thresholding based on lexicalized prior, combined with unlexicalized boundary, runs faster than that only with lexicalized prior by a factor of 1.5, at the same performance level.
WOS研究方向	Computer Science
WOS类目	Computer Science, Artificial Intelligence ; Computer Science, Theory & Methods
语种	英语
出版者	SPRINGER-VERLAG BERLIN
WOS记录号	WOS:000228725100013
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2377167
专题	中国科学院大学
通讯作者	Xiong, DY
作者单位	1.Chinese Acad Sci, Inst Comp Technol, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100864, Peoples R China
推荐引用方式 GB/T 7714	Xiong, DY,Liu, Q,Lin, SX. Lexicalized beam thresholding parsing with prior and boundary estimates[J]. Computational linguistics and intelligent text processing,2005,3406:132-141.
APA	Xiong, DY,Liu, Q,&Lin, SX.(2005).Lexicalized beam thresholding parsing with prior and boundary estimates.Computational linguistics and intelligent text processing,3406,132-141.
MLA	Xiong, DY,et al."Lexicalized beam thresholding parsing with prior and boundary estimates".Computational linguistics and intelligent text processing 3406(2005):132-141.

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