About the Authors

Yehong Han

Roles Conceptualization, Methodology, Writing – original draft

kk19856482@163.com

Affiliation School of Information Science and Engineering, Qilu Normal University, Jinan, Shandong, China

Lin Du

Roles Validation, Writing – review & editing

Affiliation School of Information Science and Engineering, Qilu Normal University, Jinan, Shandong, China

Competing Interests

The authors have declared that no competing interests exist.