NAOC Open IR
GeneticKNN: a weighted KNN approach supported by genetic algorithm for photometric redshift estimation of quasars
Han, Bo1; Qiao, Li-Na1; Chen, Jing-Lin1; Zhang, Xian-Da2; Zhang, Yan-Xia3; Zhao, Yong-Heng3
2021
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
ISSN1674-4527
Volume21Issue:1Pages:13
AbstractWe combine K-nearest neighbors (KNN) with a genetic algorithm (GA) for photometric redshift estimation of quasars, short for GeneticKNN, which is a weighted KNN approach supported by a GA. This approach has two improvements compared to KNN: one is the feature weighted by GA; the other is that the predicted redshift is not the redshift average of K neighbors but the weighted average of median and mean of redshifts for K neighbors, i.e. p x z(median) + (1 - p) x z(mean). Based on the SDSS and SDSS-WISE quasar samples, we explore the performance of GeneticKNN for photometric redshift estimation, comparing with the other six traditional machine learning methods, i.e. the least absolute shrinkage and selection operator (LASSO), support vector regression (SVR), multi-layer perceptrons (MLP), XGBoost, KNN and random forest. KNN and random forest show their superiority. Considering the easy implementation of KNN, we make improvement on KNN as GeneticKNN and apply GeneticKNN on photometric redshift estimation of quasars. Finally the performance of GeneticKNN is better than that of LASSO, SVR, MLP, XGBoost, KNN and random forest for all cases. Moreover the accuracy is better with the additional WISE magnitudes for the same method.
Keywordastronomical databases: catalogs (galaxies:) quasars: general methods: statistical techniques: miscellaneous
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; Center for High-Performance Computing at the University of Utah ; Center for High-Performance Computing at the University of Utah ; Brazilian Participation Group ; Brazilian Participation Group ; Carnegie Institution for Science ; Carnegie Institution for Science ; Carnegie Mellon University ; Carnegie Mellon University ; Chilean Participation Group ; Chilean Participation Group ; French Participation Group ; French Participation Group ; Harvard-Smithsonian Center for Astrophysics ; Harvard-Smithsonian Center for Astrophysics ; Instituto de Astrofisica de Canarias ; Instituto de Astrofisica de Canarias ; Johns Hopkins University ; Johns Hopkins University ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo ; Korean Participation Group ; Korean Participation Group ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Max-PlanckInstitut f ur Astronomie (MPIA Heidelberg) ; Max-PlanckInstitut f ur Astronomie (MPIA Heidelberg) ; Max-PlanckInstitut f ur Astrophysik (MPA Garching) ; Max-PlanckInstitut f ur Astrophysik (MPA Garching) ; Max-PlanckInstitut f ur Extraterrestrische Physik (MPE) ; Max-PlanckInstitut f ur Extraterrestrische Physik (MPE) ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; University of Notre Dame ; University of Notre Dame ; Observatario Nacional / MCTI ; Observatario Nacional / MCTI ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; Shanghai Astronomical Observatory ; Shanghai Astronomical Observatory ; United Kingdom Participation Group ; United Kingdom Participation Group ; Universidad Nacional Autonoma de Mexico ; Universidad Nacional Autonoma de Mexico ; University of Arizona ; University of Arizona ; University of Colorado Boulder ; University of Colorado Boulder ; University of Oxford ; University of Oxford ; University of Portsmouth ; University of Portsmouth ; University of Utah ; University of Utah ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; University of Wisconsin ; University of Wisconsin ; Vanderbilt University ; Vanderbilt University ; Yale University ; Yale University ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; Center for High-Performance Computing at the University of Utah ; Center for High-Performance Computing at the University of Utah ; Brazilian Participation Group ; Brazilian Participation Group ; Carnegie Institution for Science ; Carnegie Institution for Science ; Carnegie Mellon University ; Carnegie Mellon University ; Chilean Participation Group ; Chilean Participation Group ; French Participation Group ; French Participation Group ; Harvard-Smithsonian Center for Astrophysics ; Harvard-Smithsonian Center for Astrophysics ; Instituto de Astrofisica de Canarias ; Instituto de Astrofisica de Canarias ; Johns Hopkins University ; Johns Hopkins University ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo ; Korean Participation Group ; Korean Participation Group ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Max-PlanckInstitut f ur Astronomie (MPIA Heidelberg) ; Max-PlanckInstitut f ur Astronomie (MPIA Heidelberg) ; Max-PlanckInstitut f ur Astrophysik (MPA Garching) ; Max-PlanckInstitut f ur Astrophysik (MPA Garching) ; Max-PlanckInstitut f ur Extraterrestrische Physik (MPE) ; Max-PlanckInstitut f ur Extraterrestrische Physik (MPE) ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; University of Notre Dame ; University of Notre Dame ; Observatario Nacional / MCTI ; Observatario Nacional / MCTI ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; Shanghai Astronomical Observatory ; Shanghai Astronomical Observatory ; United Kingdom Participation Group ; United Kingdom Participation Group ; Universidad Nacional Autonoma de Mexico ; Universidad Nacional Autonoma de Mexico ; University of Arizona ; University of Arizona ; University of Colorado Boulder ; University of Colorado Boulder ; University of Oxford ; University of Oxford ; University of Portsmouth ; University of Portsmouth ; University of Utah ; University of Utah ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; University of Wisconsin ; University of Wisconsin ; Vanderbilt University ; Vanderbilt University ; Yale University ; Yale University ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; Center for High-Performance Computing at the University of Utah ; Center for High-Performance Computing at the University of Utah ; Brazilian Participation Group ; Brazilian Participation Group ; Carnegie Institution for Science ; Carnegie Institution for Science ; Carnegie Mellon University ; Carnegie Mellon University ; Chilean Participation Group ; Chilean Participation Group ; French Participation Group ; French Participation Group ; Harvard-Smithsonian Center for Astrophysics ; Harvard-Smithsonian Center for Astrophysics ; Instituto de Astrofisica de Canarias ; Instituto de Astrofisica de Canarias ; Johns Hopkins University ; Johns Hopkins University ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo ; Korean Participation Group ; Korean Participation Group ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Max-PlanckInstitut f ur Astronomie (MPIA Heidelberg) ; Max-PlanckInstitut f ur Astronomie (MPIA Heidelberg) ; Max-PlanckInstitut f ur Astrophysik (MPA Garching) ; Max-PlanckInstitut f ur Astrophysik (MPA Garching) ; Max-PlanckInstitut f ur Extraterrestrische Physik (MPE) ; Max-PlanckInstitut f ur Extraterrestrische Physik (MPE) ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; University of Notre Dame ; University of Notre Dame ; Observatario Nacional / MCTI ; Observatario Nacional / MCTI ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; Shanghai Astronomical Observatory ; Shanghai Astronomical Observatory ; United Kingdom Participation Group ; United Kingdom Participation Group ; Universidad Nacional Autonoma de Mexico ; Universidad Nacional Autonoma de Mexico ; University of Arizona ; University of Arizona ; University of Colorado Boulder ; University of Colorado Boulder ; University of Oxford ; University of Oxford ; University of Portsmouth ; University of Portsmouth ; University of Utah ; University of Utah ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; University of Wisconsin ; University of Wisconsin ; Vanderbilt University ; Vanderbilt University ; Yale University ; Yale University ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; Center for High-Performance Computing at the University of Utah ; Center for High-Performance Computing at the University of Utah ; Brazilian Participation Group ; Brazilian Participation Group ; Carnegie Institution for Science ; Carnegie Institution for Science ; Carnegie Mellon University ; Carnegie Mellon University ; Chilean Participation Group ; Chilean Participation Group ; French Participation Group ; French Participation Group ; Harvard-Smithsonian Center for Astrophysics ; Harvard-Smithsonian Center for Astrophysics ; Instituto de Astrofisica de Canarias ; Instituto de Astrofisica de Canarias ; Johns Hopkins University ; Johns Hopkins University ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo ; Korean Participation Group ; Korean Participation Group ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Max-PlanckInstitut f ur Astronomie (MPIA Heidelberg) ; Max-PlanckInstitut f ur Astronomie (MPIA Heidelberg) ; Max-PlanckInstitut f ur Astrophysik (MPA Garching) ; Max-PlanckInstitut f ur Astrophysik (MPA Garching) ; Max-PlanckInstitut f ur Extraterrestrische Physik (MPE) ; Max-PlanckInstitut f ur Extraterrestrische Physik (MPE) ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; University of Notre Dame ; University of Notre Dame ; Observatario Nacional / MCTI ; Observatario Nacional / MCTI ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; Shanghai Astronomical Observatory ; Shanghai Astronomical Observatory ; United Kingdom Participation Group ; United Kingdom Participation Group ; Universidad Nacional Autonoma de Mexico ; Universidad Nacional Autonoma de Mexico ; University of Arizona ; University of Arizona ; University of Colorado Boulder ; University of Colorado Boulder ; University of Oxford ; University of Oxford ; University of Portsmouth ; University of Portsmouth ; University of Utah ; University of Utah ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; University of Wisconsin ; University of Wisconsin ; Vanderbilt University ; Vanderbilt University ; Yale University ; Yale University ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration
DOI10.1088/1674-4527/21/1/17
Language英语
Funding ProjectNational Key R&D Program of China[2018YFB 1702703] ; National Natural Science Foundation of China[11873066] ; National Natural Science Foundation of China[U1531122] ; National Natural Science Foundation of China[U1731109] ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; Center for High-Performance Computing at the University of Utah ; Brazilian Participation Group ; Carnegie Institution for Science ; Carnegie Mellon University ; Chilean Participation Group ; French Participation Group ; Harvard-Smithsonian Center for Astrophysics ; Instituto de Astrofisica de Canarias ; Johns Hopkins University ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo ; Korean Participation Group ; Lawrence Berkeley National Laboratory ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Max-PlanckInstitut f ur Astronomie (MPIA Heidelberg) ; Max-PlanckInstitut f ur Astrophysik (MPA Garching) ; Max-PlanckInstitut f ur Extraterrestrische Physik (MPE) ; National Astronomical Observatories of China ; New Mexico State University ; New York University ; University of Notre Dame ; Observatario Nacional / MCTI ; Ohio State University ; Pennsylvania State University ; Shanghai Astronomical Observatory ; United Kingdom Participation Group ; Universidad Nacional Autonoma de Mexico ; University of Arizona ; University of Colorado Boulder ; University of Oxford ; University of Portsmouth ; University of Utah ; University of Virginia ; University of Washington ; University of Wisconsin ; Vanderbilt University ; Yale University ; National Aeronautics and Space Administration
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; Center for High-Performance Computing at the University of Utah ; Center for High-Performance Computing at the University of Utah ; Brazilian Participation Group ; Brazilian Participation Group ; Carnegie Institution for Science ; Carnegie Institution for Science ; Carnegie Mellon University ; Carnegie Mellon University ; Chilean Participation Group ; Chilean Participation Group ; French Participation Group ; French Participation Group ; Harvard-Smithsonian Center for Astrophysics ; Harvard-Smithsonian Center for Astrophysics ; Instituto de Astrofisica de Canarias ; Instituto de Astrofisica de Canarias ; Johns Hopkins University ; Johns Hopkins University ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo ; Korean Participation Group ; Korean Participation Group ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Max-PlanckInstitut f ur Astronomie (MPIA Heidelberg) ; Max-PlanckInstitut f ur Astronomie (MPIA Heidelberg) ; Max-PlanckInstitut f ur Astrophysik (MPA Garching) ; Max-PlanckInstitut f ur Astrophysik (MPA Garching) ; Max-PlanckInstitut f ur Extraterrestrische Physik (MPE) ; Max-PlanckInstitut f ur Extraterrestrische Physik (MPE) ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; University of Notre Dame ; University of Notre Dame ; Observatario Nacional / MCTI ; Observatario Nacional / MCTI ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; Shanghai Astronomical Observatory ; Shanghai Astronomical Observatory ; United Kingdom Participation Group ; United Kingdom Participation Group ; Universidad Nacional Autonoma de Mexico ; Universidad Nacional Autonoma de Mexico ; University of Arizona ; University of Arizona ; University of Colorado Boulder ; University of Colorado Boulder ; University of Oxford ; University of Oxford ; University of Portsmouth ; University of Portsmouth ; University of Utah ; University of Utah ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; University of Wisconsin ; University of Wisconsin ; Vanderbilt University ; Vanderbilt University ; Yale University ; Yale University ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; Center for High-Performance Computing at the University of Utah ; Center for High-Performance Computing at the University of Utah ; Brazilian Participation Group ; Brazilian Participation Group ; Carnegie Institution for Science ; Carnegie Institution for Science ; Carnegie Mellon University ; Carnegie Mellon University ; Chilean Participation Group ; Chilean Participation Group ; French Participation Group ; French Participation Group ; Harvard-Smithsonian Center for Astrophysics ; Harvard-Smithsonian Center for Astrophysics ; Instituto de Astrofisica de Canarias ; Instituto de Astrofisica de Canarias ; Johns Hopkins University ; Johns Hopkins University ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo ; Korean Participation Group ; Korean Participation Group ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Max-PlanckInstitut f ur Astronomie (MPIA Heidelberg) ; Max-PlanckInstitut f ur Astronomie (MPIA Heidelberg) ; Max-PlanckInstitut f ur Astrophysik (MPA Garching) ; Max-PlanckInstitut f ur Astrophysik (MPA Garching) ; Max-PlanckInstitut f ur Extraterrestrische Physik (MPE) ; Max-PlanckInstitut f ur Extraterrestrische Physik (MPE) ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; University of Notre Dame ; University of Notre Dame ; Observatario Nacional / MCTI ; Observatario Nacional / MCTI ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; Shanghai Astronomical Observatory ; Shanghai Astronomical Observatory ; United Kingdom Participation Group ; United Kingdom Participation Group ; Universidad Nacional Autonoma de Mexico ; Universidad Nacional Autonoma de Mexico ; University of Arizona ; University of Arizona ; University of Colorado Boulder ; University of Colorado Boulder ; University of Oxford ; University of Oxford ; University of Portsmouth ; University of Portsmouth ; University of Utah ; University of Utah ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; University of Wisconsin ; University of Wisconsin ; Vanderbilt University ; Vanderbilt University ; Yale University ; Yale University ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; Center for High-Performance Computing at the University of Utah ; Center for High-Performance Computing at the University of Utah ; Brazilian Participation Group ; Brazilian Participation Group ; Carnegie Institution for Science ; Carnegie Institution for Science ; Carnegie Mellon University ; Carnegie Mellon University ; Chilean Participation Group ; Chilean Participation Group ; French Participation Group ; French Participation Group ; Harvard-Smithsonian Center for Astrophysics ; Harvard-Smithsonian Center for Astrophysics ; Instituto de Astrofisica de Canarias ; Instituto de Astrofisica de Canarias ; Johns Hopkins University ; Johns Hopkins University ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo ; Korean Participation Group ; Korean Participation Group ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Max-PlanckInstitut f ur Astronomie (MPIA Heidelberg) ; Max-PlanckInstitut f ur Astronomie (MPIA Heidelberg) ; Max-PlanckInstitut f ur Astrophysik (MPA Garching) ; Max-PlanckInstitut f ur Astrophysik (MPA Garching) ; Max-PlanckInstitut f ur Extraterrestrische Physik (MPE) ; Max-PlanckInstitut f ur Extraterrestrische Physik (MPE) ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; University of Notre Dame ; University of Notre Dame ; Observatario Nacional / MCTI ; Observatario Nacional / MCTI ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; Shanghai Astronomical Observatory ; Shanghai Astronomical Observatory ; United Kingdom Participation Group ; United Kingdom Participation Group ; Universidad Nacional Autonoma de Mexico ; Universidad Nacional Autonoma de Mexico ; University of Arizona ; University of Arizona ; University of Colorado Boulder ; University of Colorado Boulder ; University of Oxford ; University of Oxford ; University of Portsmouth ; University of Portsmouth ; University of Utah ; University of Utah ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; University of Wisconsin ; University of Wisconsin ; Vanderbilt University ; Vanderbilt University ; Yale University ; Yale University ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; Center for High-Performance Computing at the University of Utah ; Center for High-Performance Computing at the University of Utah ; Brazilian Participation Group ; Brazilian Participation Group ; Carnegie Institution for Science ; Carnegie Institution for Science ; Carnegie Mellon University ; Carnegie Mellon University ; Chilean Participation Group ; Chilean Participation Group ; French Participation Group ; French Participation Group ; Harvard-Smithsonian Center for Astrophysics ; Harvard-Smithsonian Center for Astrophysics ; Instituto de Astrofisica de Canarias ; Instituto de Astrofisica de Canarias ; Johns Hopkins University ; Johns Hopkins University ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo ; Korean Participation Group ; Korean Participation Group ; Lawrence Berkeley National Laboratory ; Lawrence Berkeley National Laboratory ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Leibniz Institut fur Astrophysik Potsdam (AIP) ; Max-PlanckInstitut f ur Astronomie (MPIA Heidelberg) ; Max-PlanckInstitut f ur Astronomie (MPIA Heidelberg) ; Max-PlanckInstitut f ur Astrophysik (MPA Garching) ; Max-PlanckInstitut f ur Astrophysik (MPA Garching) ; Max-PlanckInstitut f ur Extraterrestrische Physik (MPE) ; Max-PlanckInstitut f ur Extraterrestrische Physik (MPE) ; National Astronomical Observatories of China ; National Astronomical Observatories of China ; New Mexico State University ; New Mexico State University ; New York University ; New York University ; University of Notre Dame ; University of Notre Dame ; Observatario Nacional / MCTI ; Observatario Nacional / MCTI ; Ohio State University ; Ohio State University ; Pennsylvania State University ; Pennsylvania State University ; Shanghai Astronomical Observatory ; Shanghai Astronomical Observatory ; United Kingdom Participation Group ; United Kingdom Participation Group ; Universidad Nacional Autonoma de Mexico ; Universidad Nacional Autonoma de Mexico ; University of Arizona ; University of Arizona ; University of Colorado Boulder ; University of Colorado Boulder ; University of Oxford ; University of Oxford ; University of Portsmouth ; University of Portsmouth ; University of Utah ; University of Utah ; University of Virginia ; University of Virginia ; University of Washington ; University of Washington ; University of Wisconsin ; University of Wisconsin ; Vanderbilt University ; Vanderbilt University ; Yale University ; Yale University ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000616043200001
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
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Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/79454
Collection中国科学院国家天文台
Corresponding AuthorZhang, Yan-Xia
Affiliation1.Wuhan Univ, Sch Comp Sci, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Inst Elect, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab Opt Astron, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Han, Bo,Qiao, Li-Na,Chen, Jing-Lin,et al. GeneticKNN: a weighted KNN approach supported by genetic algorithm for photometric redshift estimation of quasars[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2021,21(1):13.
APA Han, Bo,Qiao, Li-Na,Chen, Jing-Lin,Zhang, Xian-Da,Zhang, Yan-Xia,&Zhao, Yong-Heng.(2021).GeneticKNN: a weighted KNN approach supported by genetic algorithm for photometric redshift estimation of quasars.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,21(1),13.
MLA Han, Bo,et al."GeneticKNN: a weighted KNN approach supported by genetic algorithm for photometric redshift estimation of quasars".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 21.1(2021):13.
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