About the Authors
- Qing Dai
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Roles Conceptualization, Formal analysis, Funding acquisition, Methodology, Resources, Writing – original draft
Affiliation School of Information Engineering, Dalian Ocean University, Dalian, China
- Jiajia Zhang
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Roles Conceptualization, Data curation, Investigation, Methodology, Project administration, Supervision, Writing – review & editing
* E-mail: zjj892177892@163.com
Affiliation School of Maritime Economics and Management, Dalian Maritime University, Dalian, China
Competing Interests
The authors have declared that no competing interests exist.