a KLATASDS-MOE, School of Statistics, East China Normal University, Shanghai, People's Republic of China
a KLATASDS-MOE, School of Statistics, East China Normal University, Shanghai, People's Republic of China;b Ant Group, Hangzhou, People's Republic of China
a KLATASDS-MOE, School of Statistics, East China Normal University, Shanghai, People's Republic of China
c Department of Statistics, University of Georgia, Athens, GA, USA
qian.xiao@uga.edu
ABSTRACT