中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
New cross-matching algorithm in large-scale catalogs with ThreadPool technique

文献类型:期刊论文

作者Du Peng1,2; Ren JuanJuan2; Pan JingChang1; Luo Ali1,2
刊名SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
出版日期2014-03-01
卷号57期号:3页码:577-583
关键词cross-match astronomical catalogs methods: HTM and HEALPix ThreadPool
英文摘要We introduce an algorithm to solve the block-edge problem taking advantage of the two different sky splitting functions: HTM and HEALPix. We make the cross-match with the two functions, and then we obtain the union set of the two different sets. We use the ThreadPool technique to speed up the cross-match. In this way improved accuracy can be obtained on the cross-match. Our experiments show that this algorithm has a remarkable performance superiority compared with the previous ones and can be applied to the cross-match between large-scale catalogs. We give some ideas about solving the many-for-one situation occurred in the cross-match.
收录类别SCI
语种英语
WOS记录号WOS:000331961200023
源URL[http://ir.bao.ac.cn/handle/114a11/6595]  
专题国家天文台_光学天文研究部
作者单位1.Shandong Univ, Sch Mech Elect & Informat Engn, Weihai 264209, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China
推荐引用方式
GB/T 7714
Du Peng,Ren JuanJuan,Pan JingChang,et al. New cross-matching algorithm in large-scale catalogs with ThreadPool technique[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2014,57(3):577-583.
APA Du Peng,Ren JuanJuan,Pan JingChang,&Luo Ali.(2014).New cross-matching algorithm in large-scale catalogs with ThreadPool technique.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,57(3),577-583.
MLA Du Peng,et al."New cross-matching algorithm in large-scale catalogs with ThreadPool technique".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 57.3(2014):577-583.

入库方式: OAI收割

来源:国家天文台

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