About the Authors

Weiwei Zhu

Roles Conceptualization, Formal analysis, Investigation, Project administration, Software, Validation, Writing – original draft

Jayce1015@163.com

Affiliation School of Statistics and Data Science, Lanzhou University of Finance and Economics, Lanzhou, China

Guozhuo Yang

Roles Data curation, Funding acquisition, Methodology, Resources, Supervision, Visualization, Writing – review & editing

Affiliation School of Statistics and Data Science, Lanzhou University of Finance and Economics, Lanzhou, China

Competing Interests

The authors have declared that no competing interests exist.