
基于改进超效率DEA模型的长江经济带科技创新效率研究
The Technology Innovation Efficiency Analysis of Yangtze River Economic Belt Using PCA and SEDEA Joint Model
PCA-SE-DEA组合模型, 长江经济带, 科技创新效率
PCASEDEA Joint Model, Yangtze River Economic Belt, Technology Innovation Efficiency
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