The Impact of COVID-19 on Online Games: Machine Learning and Difference-in-Difference. - Shuangyan Wu; Haoran Hu; Yufan Zheng; Qiaoling Zhen; Shuntao Zhang; Choujun Zhan (ChineseCSCW (2), 2021)

COVID-19's Impact on the Box office: Machine Learning and Difference-in-Difference. - Yufan Zheng; Qiaoling Zhen; Minghao Tan; Haoran Hu; Choujun Zhan (ISKE, 2021)

Daily PM2.5 Forecasting Using Graph Convolutional Networks Based on Human Migration. - Choujun Zhan; Wei Jiang 006; Qiaoling Zhen; Haoran Hu; Wei Yuan (NCAA, 2021)