29 citations · 29 across the 1 of their papers we have counts for
3 papers
astro-ph.IM2013★ 29 cited
Estimating Photometric Redshifts of Quasars via K-nearest Neighbor Approach Based on Large Survey Databases
Zhang Yanxia, Ma He, Peng Nanbo +2
We apply one of lazy learning methods named k-nearest neighbor algorithm (kNN) to estimate the photometric redshifts of quasars, based on various datasets from the Sloan Digital Sk…
astro-ph.IM2012
Selecting Quasar Candidates by a SVM Classification System
Nanbo Peng, Yanxia Zhang, Yongheng Zhao +1
We develop and demonstrate a classification system constituted by several Support Vector Machines (SVM) classifiers, which can be applied to select quasar candidates from large sky…
astro-ph.CO2012
SDSS quasars in the WISE preliminary data release and quasar candidate selection with optical/infrared colors
Xue-Bing Wu, Guoqiang Hao, Zhendong Jia +2
We present a catalog of 37,842 quasars in the SDSS Data Release 7, which have counterparts within 6" in the WISE Preliminary Data Release. The overall WISE detection rate of the SD…