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Spectra classification based on generalized discriminant analysis
Xu Xin; Yang Jin-fu; Wu Fu-chao; Zhao Yong-heng
Source PublicationSPECTROSCOPY AND SPECTRAL ANALYSIS
2006-10-01
Volume26Issue:10Pages:1960-1964
SubtypeArticle
AbstractA 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.
KeywordSpectra Classification Generalized Discriminant Analysis Linear Discriminant Analysis Kernel Principal Component Analysis
WOS HeadingsScience & Technology ; Technology
WOS KeywordCOMPONENT ANALYSIS ; STELLAR SPECTRA ; RECOGNITION ; LDA
Indexed BySCI
Language英语
WOS Research AreaSpectroscopy
WOS SubjectSpectroscopy
WOS IDWOS:000241751800046
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/9247
Collection09年以前成果
Affiliation1.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
Recommended Citation
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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