45 citations · 45 across the 2 of their papers we have counts for
3 papers
astro-ph.IM2019
A New Strategy for Estimating Photometric Redshifts of Quasars
Yanxia Zhang, Jingyi Zhang, Xin Jin +1
Based on the SDSS and SDSS-WISE quasar datasets, we put forward two schemes to estimate the photometric redshifts of quasars. Our schemes are based on the idea that the samples are…
astro-ph.IM2019★ 45 cited
Efficient Selection of Quasar Candidates Based on Optical and Infrared Photometric Data Using Machine Learning
Xin Jin, Yanxia Zhang, Jingyi Zhang +3
We aim to select quasar candidates based on the two large survey databases, Pan-STARRS and AllWISE. Exploring the distribution of quasars and stars in the color spaces, we find tha…
astro-ph.IM2018
Imbalanced learning for RR Lyrae stars
Jingyi Zhang, Yanxia Zhang, Yongheng Zhao
We apply machine learning and Convex-Hull algorithms to separate RR Lyrae stars from other stars, like main sequence stars, white dwarf stars, carbon stars, CVs and carbon-lines st…