About the Authors

Huixin Liu

Contributed equally to this work with: Huixin Liu, Chen Lu

Roles Funding acquisition, Investigation

Affiliation School of Marxism, Qingdao University of Technology, Qingdao, China

Chen Lu

Contributed equally to this work with: Huixin Liu, Chen Lu

Roles Formal analysis, Writing – original draft, Writing – review & editing

LChen0517@126.com

Affiliation School of Management Engineering, Qingdao University of Technology, Qingdao, China

Xiang Hao

Roles Resources, Software

‡ XH and HZ also contributed equally to this work.

Affiliation School of Management Engineering, Qingdao University of Technology, Qingdao, China

Hui Zhao

Roles Supervision, Validation

‡ XH and HZ also contributed equally to this work.

Affiliation School of Management Engineering, Qingdao University of Technology, Qingdao, China

Competing Interests

The authors have declared that no competing interests exist.