Adaptive stellar spectral subclass classification based on Bayesian SVMs
文献类型：期刊论文
| 作者 | Du, Changde1,2 ; Luo, Ali1; Yang, Haifeng1,2,3
|
| 刊名 | NEW ASTRONOMY
 |
| 出版日期 | 2017-02-01 |
| 卷号 | 51页码:51-58 |
| 关键词 | Stellar spectral classification Bayesian support vector machines MCMC Data-driven |
| 英文摘要 | Stellar spectral classification is one of the most fundamental tasks in survey astronomy. Many automated classification methods have been applied to spectral data. However, their main limitation is that the model parameters must be tuned repeatedly to deal with different data sets. In this paper, we utilize the Bayesian support vector machines (BSVM) to classify the spectral subclass data. Based on Gibbs sampling, BSVM can infer all model parameters adaptively according to different data sets, which allows us to circumvent the time-consuming cross validation for penalty parameter. We explored different normalization methods for stellar spectral data, and the best one has been suggested in this study. Finally, experimental results on several stellar spectral subclass classification problems show that the BSVM model not only possesses good adaptability but also provides better prediction performance than traditional methods. (C) 2016 Published by Elsevier B.V. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | ARTIFICIAL NEURAL-NETWORKS ; DIGITAL SKY SURVEY ; PRINCIPAL COMPONENT ANALYSIS ; EMISSION-LINE GALAXIES ; MACHINE ; STARS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000385595000008 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6902]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China 3.Taiyuan Univ Sci & Technol, Sch Comp Sci & Technol, Taiyuan 030024, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du, Changde,Luo, Ali,Yang, Haifeng. Adaptive stellar spectral subclass classification based on Bayesian SVMs[J]. NEW ASTRONOMY,2017,51:51-58. |
| APA | Du, Changde,Luo, Ali,&Yang, Haifeng.(2017).Adaptive stellar spectral subclass classification based on Bayesian SVMs.NEW ASTRONOMY,51,51-58. |
| MLA | Du, Changde,et al."Adaptive stellar spectral subclass classification based on Bayesian SVMs".NEW ASTRONOMY 51(2017):51-58. |
入库方式： OAI收割
来源：国家天文台
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