About the Authors

Lian Liu

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Validation, Writing – original draft, Writing – review & editing

Affiliation School of Computer Science, Shaanxi Normal University, Xi’an, Shaanxi, China

Yumeng Zhou

Roles Validation, Writing – review & editing

Affiliation School of Computer Science, Shaanxi Normal University, Xi’an, Shaanxi, China

Xiujuan Lei

Roles Conceptualization, Formal analysis, Funding acquisition, Investigation, Methodology, Supervision, Writing – review & editing

xjlei@snnu.edu.cn

Affiliation School of Computer Science, Shaanxi Normal University, Xi’an, Shaanxi, China

Competing Interests

The authors have declared that no competing interests exist.