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An Efficient Method for Rare Spectra Retrieval in Astronomical Databases

文献类型：期刊论文

作者Du, Changde1,2; Luo, Ali1,2; Yang, Haifeng1,2,3; Hou, Wen1,2; Guo, Yanxin1,2
刊名PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
出版日期2016-03-01
卷号128期号:961
关键词astonomical databases: miscellaneous methods: data analysis techniques: spectroscopic
英文摘要One of the most important aims of astronomical data mining is to systematically search for specific rare objects in a massive spectral data set, given a small fraction of identified samples with the same type. Most existing methods are mainly based on binary classification, which usually suffers from incompleteness when there are too few known samples. Rank-based methods could provide good solutions for such cases. After investigating several algorithms, a method combining a bipartite ranking model with bootstrap aggregating techniques was developed in this paper. The method was applied while searching for carbon stars in the spectral data of Sloan Digital Sky Survey Data Release 10 and compared with several other popular methods used for data mining. Experimental results validate that the proposed method is not only the most effective but also the least time-consuming technique among its competitors when searching for rare spectra in a large but unlabeled data set.
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
关键词[WOS]UNLABELED EXAMPLES
收录类别SCI
语种英语
WOS记录号WOS:000387107100002
源URL[http://ir.bao.ac.cn/handle/114a11/6859]  
专题国家天文台_光学天文研究部
作者单位1.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China
2.Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China
3.Taiyuan Univ Sci & Technol, Sch Comp Sci & Technol, Taiyuan 030024, Peoples R China
推荐引用方式
GB/T 7714		 Du, Changde,Luo, Ali,Yang, Haifeng,et al. An Efficient Method for Rare Spectra Retrieval in Astronomical Databases[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,2016,128(961).
APA Du, Changde,Luo, Ali,Yang, Haifeng,Hou, Wen,&Guo, Yanxin.(2016).An Efficient Method for Rare Spectra Retrieval in Astronomical Databases.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,128(961).
MLA Du, Changde,et al."An Efficient Method for Rare Spectra Retrieval in Astronomical Databases".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 128.961(2016).

入库方式： OAI收割

来源：国家天文台

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