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A novel spectral classifier based on coherence measure
Li, XR; Wu, FC; Hu, ZY; Luo, AL
2005-11-01
发表期刊SPECTROSCOPY AND SPECTRAL ANALYSIS
卷号25期号:11页码:1889-1892
文章类型Article
摘要Classification 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.
关键词Coherence Measure Knowledge Discovery Active Galactic Nucleus(Agns) Active Galaxies(Ags) Principal Component Analysis(Pca) K-nearest Neighbor(Knn)
WOS标题词Science & Technology ; Technology
关键词[WOS]ULTRAVIOLET ; GALAXIES
收录类别SCI
语种英语
WOS研究方向Spectroscopy
WOS类目Spectroscopy
WOS记录号WOS:000233750500040
引用统计
被引频次:3[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/173211/9094
专题09年以前成果
作者单位1.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
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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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