An Efficient Method for Rare Spectra Retrieval in Astronomical Databases
An Efficient Method for Rare Spectra Retrieval in Astronomical Databases
复制标题
天文数据库中稀有光谱检索的有效方法
DOI:
10.1088/1538-3873/128/961/034502
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发表时间:
2016-02
影响因子:
3.5
通讯作者:
Guo Yanxin
中科院分区:
文献类型:
--
作者:
Du Changde;Luo Ali;Yang Haifeng;Hou Wen;Guo Yanxin
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.
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影响因子:
7.5
作者:
Tax, DMJ;Duin, RPW
通讯作者:
Duin, RPW
DOI:
10.5555/1314498.1390330
发表时间:
2006-11
期刊:
J. Mach. Learn. Res.
影响因子:
--
作者:
S. Clémençon;N. Vayatis
通讯作者:
S. Clémençon;N. Vayatis
影响因子:
3
作者:
Mordelet F;Vert JP
通讯作者:
Vert JP
影响因子:
--
作者:
Dong Kyu Lee;I. Maeng;Seung Jae Oh;Taekhoon Kim;B. Cho;Kwangyeol Lee;J. Son
通讯作者:
Dong Kyu Lee;I. Maeng;Seung Jae Oh;Taekhoon Kim;B. Cho;Kwangyeol Lee;J. Son
DOI:
10.1088/0067-0049/211/2/17
发表时间:
2014
期刊:
The Astrophysical Journal Supplement Series
影响因子:
--
作者:
Ahn C
通讯作者:
Ahn C