About the Authors

Zhiming Li

Roles Funding acquisition, Methodology, Software, Writing – original draft

Affiliation College of Mathematics and System Science, Xinjiang University, Urumqi, China

Changxing Ma

Roles Writing – original draft, Writing – review & editing

cxma@buffalo.edu

Affiliation Department of Biostatistics, University at Buffalo, Buffalo, NY, United States of America

Mingyao Ai

Roles Writing – review & editing

Affiliation LMAM, School of Mathematical Sciences and Center for Statistical Science, Peking University, Beijing, China

Competing Interests

I have read the journal’s policy and the authors of this manuscript have the following competing interests: The authors have declared that no competing interests exist.