[1] Chinese Acad Sci, Acad Math & Syst Sci, Beijing, Peoples R China
[2] Southwest Jiaotong Univ, Dept Stat, Coll Math, Chengdu 611756, Sichuan, Peoples R China
[3] NIAID, NIH, 9000 Rockville Pike, Bethesda, MD 20892 USA
[4] MOE, Key Lab Adv Theory & Applicat Stat & Data Sci, Shanghai, Peoples R China
[5] East China Normal Univ, Acad Stat & Interdisciplinary Sci, Shanghai, Peoples R China