Improving retrieval of plane geometry figure with learning to rank

doi:10.1016/j.patrec.2016.05.020

CORC > 北京大学 > 信息科学技术学院

	Improving retrieval of plane geometry figure with learning to rank
	Liu, Lu ; Lu, Xiaoqing ; Liao, Yuan ; Wang, Yongtao ; Tang, Zhi
刊名	PATTERN RECOGNITION LETTERS
	2016
关键词	Learning to rank Ranking optimization Shape retrieval Plane geometry figure Feature selection IMAGE SIMILARITY CLASSIFICATION SYSTEMS
DOI	10.1016/j.patrec.2016.05.020
英文摘要	Educational images are increasingly becoming available online, but an effective method to search for such images is nonexistent, particularly for graph-based digital resources. This paper focuses on plane geometry figure (PGF) retrieval with ranking optimization to retrieve relevant digital geometry materials. A learning to rank model is introduced to rearrange the unsatisfactory order of highly similar PGFs in retrieval results. Moreover, to enhance the retrieval accuracy and efficiency, we perform feature selection for ranking according to the quality and redundancy of several specific types of PGF features. We perform retrieval experiments and evaluations on two PGF datasets, and results show that our PGF retrieval method improves figure retrieval accuracy better than existing methods. (C) 2016 Elsevier B.V. All rights reserved.; National Natural Science Foundation of China [61472014, 61573028]; Natural Science Foundation of Beijing [4142023]; Beijing Nova Program [XX2015B010]; SCI(E); ARTICLE; lvxiaoqing@pku.edu.cn; 423-429; 83
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/458622]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Liu, Lu,Lu, Xiaoqing,Liao, Yuan,et al. Improving retrieval of plane geometry figure with learning to rank[J]. PATTERN RECOGNITION LETTERS,2016.
APA	Liu, Lu,Lu, Xiaoqing,Liao, Yuan,Wang, Yongtao,&Tang, Zhi.(2016).Improving retrieval of plane geometry figure with learning to rank.PATTERN RECOGNITION LETTERS.
MLA	Liu, Lu,et al."Improving retrieval of plane geometry figure with learning to rank".PATTERN RECOGNITION LETTERS (2016).