A novel spectral classifier based on coherence measure
文献类型：期刊论文
| 作者 | Li, XR; Wu, FC; Hu, ZY; Luo, AL
|
| 刊名 | SPECTROSCOPY AND SPECTRAL ANALYSIS
 |
| 出版日期 | 2005-11-01 |
| 卷号 | 25期号:11页码:1889-1892 |
| 关键词 | coherence measure knowledge discovery active galactic nucleus(AGNs) active galaxies(AGs) principal component analysis(PCA) k-nearest neighbor(KNN) |
| 英文摘要 | 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. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000233750500040 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6996]  |
| 专题 | 国家天文台_光学天文研究部 |
| 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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：国家天文台
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