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Spectra classification based on generalized discriminant analysis
Xu Xin; Yang Jin-fu; Wu Fu-chao; Zhao Yong-heng
2006-10-01
发表期刊SPECTROSCOPY AND SPECTRAL ANALYSIS
卷号26期号:10页码:1960-1964
文章类型Article
摘要A kernel based generalized discriminant analysis (GDA) technique is proposed for the classification of stars, galaxies, and quasars. GDA combines the LDA algorithm with kernel trick, and samples are projected by nonlinear mapping onto the feature space F with high dimensions, and then LDA is conducted in F. Also, it could be inferred that GDA which combines the extension of Fisher's criterion with kernel trick is complementary to kernel Fisher discriminant framework. LDA, GDA, PCA and KPCA were experimentally compared with these three different kinds of spectra. Among these four techniques, GDA obtains the best result, followed by LDA, and PCA is the worst. Although KPCA is also a kernel based technique, its performance is not satisfactory if the selected number of the principal components is small, and in some cases, it appears even worse than LDA, a non-kernel based technique.
关键词Spectra Classification Generalized Discriminant Analysis Linear Discriminant Analysis Kernel Principal Component Analysis
WOS标题词Science & Technology ; Technology
关键词[WOS]COMPONENT ANALYSIS ; STELLAR SPECTRA ; RECOGNITION ; LDA
收录类别SCI
语种英语
WOS研究方向Spectroscopy
WOS类目Spectroscopy
WOS记录号WOS:000241751800046
引用统计
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/9247
专题09年以前成果
作者单位1.Chinese Acad Sci, Natl Lab Pattern Recongit, Inst Automat, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
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GB/T 7714
Xu Xin,Yang Jin-fu,Wu Fu-chao,et al. Spectra classification based on generalized discriminant analysis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2006,26(10):1960-1964.
APA Xu Xin,Yang Jin-fu,Wu Fu-chao,&Zhao Yong-heng.(2006).Spectra classification based on generalized discriminant analysis.SPECTROSCOPY AND SPECTRAL ANALYSIS,26(10),1960-1964.
MLA Xu Xin,et al."Spectra classification based on generalized discriminant analysis".SPECTROSCOPY AND SPECTRAL ANALYSIS 26.10(2006):1960-1964.
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