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Supervised feature extraction based on FDA and galaxy spectra classification
Li Xiang-ru; Hu Zhan-yi; Zhao Yong-heng
2007-09-01
发表期刊SPECTROSCOPY AND SPECTRAL ANALYSIS
卷号27期号:9页码:1898-1901
文章类型Article
摘要With the recent technological advances in wide field survey astronomy and the implementation of several large scale astronomical survey proposals, celestial spectra are becoming very rich and the study of automated processing methods is attracting more and more attention. In the present work, the authors pointed out that it is necessary to investigate supervised feature extraction by analyzing the characteristics of the spectra classification research in literature and the limitations of unsupervised feature extraction methods. And the authors studied supervised feature extraction based on Fisher discriminant analysis (FDA) and its application in galaxy spectra classification. FDA could effectively reduce dimension and extract the features based on the classifying capability by fusing information in training data. Experiments show its superior performance in dimensional reduction for galaxy spectra classification.
关键词Spectra Feature Extraction Agn Supervised Feature Extraction Spectra Classification Fisher Discriminant Analysis
WOS标题词Science & Technology ; Technology
关键词[WOS]DIGITAL SKY SURVEY ; REDSHIFT SURVEY
收录类别SCI
语种英语
WOS研究方向Spectroscopy
WOS类目Spectroscopy
WOS记录号WOS:000249990800059
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/9400
专题09年以前成果
作者单位1.Chinese Acad Sci, Inst Automat, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
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Li Xiang-ru,Hu Zhan-yi,Zhao Yong-heng. Supervised feature extraction based on FDA and galaxy spectra classification[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2007,27(9):1898-1901.
APA Li Xiang-ru,Hu Zhan-yi,&Zhao Yong-heng.(2007).Supervised feature extraction based on FDA and galaxy spectra classification.SPECTROSCOPY AND SPECTRAL ANALYSIS,27(9),1898-1901.
MLA Li Xiang-ru,et al."Supervised feature extraction based on FDA and galaxy spectra classification".SPECTROSCOPY AND SPECTRAL ANALYSIS 27.9(2007):1898-1901.
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