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