About the Authors

Chunya Liu

Roles Conceptualization, Formal analysis, Methodology, Software, Writing – original draft

Affiliations School of Mathematics and Computer Science, Northwest Minzu University, Lanzhou, Gansu, China, School of Mathematics and Statistics, Lanzhou University, Lanzhou, Gansu, China

Hua Liu

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

jslh@xbmu.edu.cn (HL); hushuju@lzu.edu.cn (SH)

Affiliations School of Mathematics and Computer Science, Northwest Minzu University, Lanzhou, Gansu, China, Key Laboratory of Linguistic and Cultural Computing Ministry of Education, Northwest Minzu University, Lanzhou, Gansu, China

Yumei Wei

Roles Data curation, Supervision

Affiliation Experimental Teaching Department, Northwest Minzu University, Lanzhou, Gansu, China

Jianhua Ye

Roles Investigation, Visualization

Affiliation School of Mathematics and Computer Science, Northwest Minzu University, Lanzhou, Gansu, China

Gang Ma

Roles Supervision, Validation

Affiliation School of Mathematics and Computer Science, Northwest Minzu University, Lanzhou, Gansu, China

Weide Li

Roles Funding acquisition, Supervision, Visualization, Writing – review & editing

Affiliation School of Mathematics and Statistics, Lanzhou University, Lanzhou, Gansu, China

Shujuan Hu

Roles Data curation, Funding acquisition, Supervision, Validation

jslh@xbmu.edu.cn (HL); hushuju@lzu.edu.cn (SH)

Affiliation College of Atmospheric Sciences, Lanzhou University, Lanzhou, Gansu, China

Competing Interests

The authors declare no conflict of interest regarding this research.