[Yu, Tianyou; Yu, Zhuliang; Li, Yuanqing; Wang, Wenlong] South China Univ Technol, Sch Automat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China.
[Qi, Feifei; Yu, Tianyou; Yu, Zhuliang; Li, Yuanqing; Wang, Wenlong] Pazhou Lab, Guangzhou 510330, Guangdong, Peoples R China.
[Qi, Feifei] Guangdong Univ Finance, Sch Internet Finance & Informat Engn, Guangzhou 510521, Guangdong, Peoples R China.
[Wipf, David Paul] Amazon Shanghai AI Lab, Shanghai 200336, Peoples R China.
[Cai, Chang] Cent China Normal Univ, Natl Engn Res Ctr E Learning, Wuhan 430079, Hubei, Peoples R China.