Policy Evolution of Government Procurement of Public Services in China: A Text-Mining Perspective

Table 1

Text-mining studies on policy documents.

Research object	Research contents	Specific methods	Authors
National science and technology innovation policy in China	Policy evolution and policy theme analysis	K-means clustering analysis	Zhang et al. [35]
Subsidy policy for new energy vehicles in China	Policy tools and policy evaluation	TF-IDF algorithm and PMC method	Zhang and Zhou [37]
Climate policy in China, the US, and EU	Quantitative analysis of policy themes	LDA model and N-gram model	Yang et al. [39]
High-tech industrial policy in China	Research on hierarchical characteristics and evolution	Coword analysis and LDA model	Wang and Sun [40]
AI policy in China	Policy status and frontier trends	LDA model and NLP	Zhang et al. [1]
Monetary policy in the US	Policy evolution and stability	Text-mining techniques	Wischnewsky et al. [38]