Stellar Spectral Subclass Classification Based on Locally Linear Embedding
文献类型：期刊论文
| 作者 | Bu Yude1; Pan Jingchang2; Jiang Bin2; Wei Peng3
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| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
 |
| 出版日期 | 2013-08-25 |
| 卷号 | 65期号:4 |
| 关键词 | methods: data analysis methods: statistical stars: binaries (including multiple): close stars: late-type |
| 英文摘要 | Locally linear embedding (LLE) is a recently developed dimension reduction technique. In this paper, we describe how we applied LLE to the stellar subclass classification. We found that LLE classifies the objects with different physical characteristics correctly. We then compared the performance of LLE with that of principal component analysis (PCA) in spectral classification, and found that LLE does better than PCA. We tested the robustness of LLE against the changing of signal-to-noise ratios (SNRs), and found that the performance of LLB is affected by two factors: changing of SNRs and the range of SNRs of the spectra data set. We also studied the variation of LLE parameters, and found that the experiment results are affected by the parameter variation, but not sensitive. Finally, using LLE, we located those objects misclassified by the Sloan Digital Sky Survey pipeline, and estimated its accuracy in classifying stellar subclasses. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000330328300012 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5856]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Shandong Univ, Sch Math & Stat, Weihai 264209, Shandong, Peoples R China 2.Shandong Univ, Sch Mech Elect & Informat Engn, Weihai 264209, Shandong, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bu Yude,Pan Jingchang,Jiang Bin,et al. Stellar Spectral Subclass Classification Based on Locally Linear Embedding[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2013,65(4). |
| APA | Bu Yude,Pan Jingchang,Jiang Bin,&Wei Peng.(2013).Stellar Spectral Subclass Classification Based on Locally Linear Embedding.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,65(4). |
| MLA | Bu Yude,et al."Stellar Spectral Subclass Classification Based on Locally Linear Embedding".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 65.4(2013). |
入库方式： OAI收割
来源：国家天文台
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