基于全局主成分-聚类分析的城市创新生态系统评价——以中国19个重点城市为例

Evaluating Research into the Urban Innovation Ecosystem Based on the Methods of Global Principal Component and Cluster Analysis:Taking 19 key cities in China as example

基于19个重点城市创新要素实际,构建创新环境、创新支付、创新动能、发展趋势、开放水平5个维度20个指标的城市创新生态系统评价指标体系,根据2017—2019年数据,应用全局主成分模型提取主成分和计算得分,并进行聚类分析。研究发现:创新环境与创新支付影响显著;各城市重视程度提高,但得分差距拉大;城市间差异明显,各有优势。由此建议提升创新环境品质、建立全生态创新系统、培育城市创新动能、促进跨区域创新系统协同发展。

Based on the innovation elements of 19 key cities,the evaluation index system of urban innovation ecosystem is built,including five dimensions and twenty secondary indicators,that is innovation environment,innovation payment,innovation kinetic energy,development trend and openness level.Principal components and calculate comprehensive scores are extracted with the method of global principal component analysis,in accordance with the index data from 2017 to 2019,and the urban innovation ecosystem is classified are put forward by utilizing the method of hierarchical cluster analysis.The results show that innovation environment and innovation payment have significant effects on the urban innovation ecosystem.The urban innovation ecosystem have aroused more and more attention of of various cities,but the point difference expand.Significant difference is observed among the cities.Therefore,the following suggestions improving the quality of“hard innovation environment”and“soft innovation environment”,establishing and optimize the whole ecological innovation system,cultivating strong driving force,and accelerate the coordinated development of cross-regional innovation systems.