Research Article
Regional Economic Upgrading and Development Based on Digital and Intelligent Innovation
Table 2
The results of calculating the weight of each index using the extreme value entropy weight method.
| First-level indicator | Secondary indicators | Weights |
| Digital infrastructure | Internet port access | 0.0731 | Internet penetration | 0.0372 | Number of R&D institutions | 0.0717 |
| Digital industry scale | Internal expenditure of R&D funds | 0.0979 | Full-time equivalent of R&D personnel | 0.0934 |
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