CASIA OpenIR  > 09年以前成果
Supervised feature extraction based on FDA and galaxy spectra classification
Li Xiang-ru; Hu Zhan-yi; Zhao Yong-heng
Source PublicationSPECTROSCOPY AND SPECTRAL ANALYSIS
2007-09-01
Volume27Issue:9Pages:1898-1901
SubtypeArticle
AbstractWith 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.
KeywordSpectra Feature Extraction Agn Supervised Feature Extraction Spectra Classification Fisher Discriminant Analysis
WOS HeadingsScience & Technology ; Technology
WOS KeywordDIGITAL SKY SURVEY ; REDSHIFT SURVEY
Indexed BySCI
Language英语
WOS Research AreaSpectroscopy
WOS SubjectSpectroscopy
WOS IDWOS:000249990800059
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/9400
Collection09年以前成果
Affiliation1.Chinese Acad Sci, Inst Automat, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
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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