CASIA OpenIR  > 09年以前成果
A novel spectral classifier based on coherence measure
Li, XR; Wu, FC; Hu, ZY; Luo, AL
AbstractClassification and discovery of new types of celestial bodies from voluminous celestial spectra are two important issues in astronomy, and these two issues are treated separately in the literature to our knowledge. In the present paper, a novel coherence measure is introduced which can effectively measure the coherence of a new spectrum of unknown type with the training samples located within its neighbourhood, then a novel classifier is designed based on this coherence measure. The proposed classifier is capable of carrying out spectral classification and knowledge discovery simultaneously. In particular, it can effectively deal with the situation where different types of training spectra exist within the neighbourhood of a new spectrum, and the traditional k-nearest neighbour method usually fails to reach a correct classification. The satisfactory performance for classification. and knowledge discovery has been obtained by the proposed novel classifier over active galactic nucleus(AGNs) and active galaxies(AGs) data.
KeywordCoherence Measure Knowledge Discovery Active Galactic Nucleus(Agns) Active Galaxies(Ags) Principal Component Analysis(Pca) K-nearest Neighbor(Knn)
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
WOS Research AreaSpectroscopy
WOS SubjectSpectroscopy
WOS IDWOS:000233750500040
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Li, XR,Wu, FC,Hu, ZY,et al. A novel spectral classifier based on coherence measure[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2005,25(11):1889-1892.
APA Li, XR,Wu, FC,Hu, ZY,&Luo, AL.(2005).A novel spectral classifier based on coherence measure.SPECTROSCOPY AND SPECTRAL ANALYSIS,25(11),1889-1892.
MLA Li, XR,et al."A novel spectral classifier based on coherence measure".SPECTROSCOPY AND SPECTRAL ANALYSIS 25.11(2005):1889-1892.
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