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Random forest algorithm for classification of multiwavelength data
Gao, Dan1,2; Zhang, Yan-Xia1; Zhao, Yong-Heng1
2009-02-01
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
Volume9Issue:2Pages:220-226
AbstractWe introduced a decision tree method called Random Forests for multiwavelength data classification. The data were adopted from different databases, including the Sloan Digital Sky Survey (SDSS) Data Release five, USNO, FIRST and ROSAT. We then studied the discrimination of quasars from stars and the classification of quasars, stars and galaxies with the sample from optical and radio bands and with that from optical and X-ray bands. Moreover, feature selection and feature weighting based on Random Forests were investigated. The performances based on different input patterns were compared. The experimental results show that the random forest method is an effective method for astronomical object classification and can be applied to other classification problems faced in astronomy. In addition, Random Forests will show its superiorities due to its own merits, e.g. classification, feature selection, feature weighting as well as outlier detection.
KeywordClassification Astronomical Databases: Miscellaneous Catalogs Methods: Data Analysis Methods: Statistical
Indexed BySCI
Language英语
WOS IDWOS:000264845000011
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8347
Collection光学天文研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Gao, Dan,Zhang, Yan-Xia,Zhao, Yong-Heng. Random forest algorithm for classification of multiwavelength data[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2009,9(2):220-226.
APA Gao, Dan,Zhang, Yan-Xia,&Zhao, Yong-Heng.(2009).Random forest algorithm for classification of multiwavelength data.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,9(2),220-226.
MLA Gao, Dan,et al."Random forest algorithm for classification of multiwavelength data".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 9.2(2009):220-226.
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