Spatiotemporal disparities and dynamic transition characteristics of China’s national standard development contribution levels—Based on machine splitting and location assignment technology

• Hongjun Sun,

  Roles Conceptualization, Investigation, Methodology, Software, Validation, Writing – original draft, Writing – review & editing

  Affiliation China National Institute of Standardization, Beijing, China

  ⨯
• Yang Du ,

  Roles Data curation, Formal analysis, Investigation, Resources, Writing – original draft

  * E-mail: duyang@cnis.ac.cn

  Affiliation China National Institute of Standardization, Beijing, China

  https://orcid.org/0009-0008-5058-5787

  ⨯
• Juxiu Huang

  Roles Data curation, Software, Supervision, Writing – review & editing

  Affiliation Biaoxin Science & Technology (Beijing) Co., Ltd, Beijing, China

  ⨯