A robust test for sphericity of high-dimensional covariance matrices. - Xintao Tian; Yuting Lu; Weiming Li (J. Multivar. Anal., 2015)

Considering Interaction Sequence of Historical Items for Conversational Recommender System. - Xintao Tian; Yongjing Hao; Pengpeng Zhao 001; Deqing Wang; Yanchi Liu; Victor S. Sheng (DASFAA (3), 2021)