Supervised feature extraction based on FDA and galaxy spectra classification

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
发表期刊	SPECTROSCOPY AND SPECTRAL ANALYSIS
	2007-09-01
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：7[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
推荐引用方式 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.