Lexicalized beam thresholding parsing with prior and boundary estimates

	Lexicalized beam thresholding parsing with prior and boundary estimates
	Xiong, DY ; Liu, Q ; Lin, SX
	2005
发表期刊	COMPUTATIONAL LINGUISTICS AND INTELLIGENT TEXT PROCESSING
ISSN	0302-9743
卷号	3406 页码:132-141
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.
收录类别	SCI
语种	英语
WOS研究方向	Computer Science
WOS类目	Computer Science, Artificial Intelligence ; Computer Science, Theory & Methods
WOS记录号	WOS:000228725100013
出版者	SPRINGER-VERLAG BERLIN
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/9964
专题	中国科学院计算技术研究所期刊论文_英文
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.