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	Paraphrasing adaptation for web search ranking
	Wang, Chenguang ; Duan, Nan ; Zhou, Ming ; Zhang, Ming
	2013
英文摘要	Mismatch between queries and documents is a key issue for the web search task. In order to narrow down such mismatch, in this paper, we present an in-depth investigation on adapting a paraphrasing technique to web search from three aspects: a search-oriented paraphrasing model; an NDCG-based parameter optimization algorithm; an enhanced ranking model leveraging augmented features computed on paraphrases of original queries. Experiments performed on the large scale query-document data set show that, the search performance can be significantly improved, with +3.28% and +1.14% ND-CG gains on dev and test sets respectively. ? 2013 Association for Computational Linguistics.; EI; 0
语种	英语
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/412099]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Wang, Chenguang,Duan, Nan,Zhou, Ming,et al. Paraphrasing adaptation for web search ranking. 2013-01-01.

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