基于组合加权主成分分析对宜居城市的研究

The Study of Livable Cities Based on Combination Weighted Principal Component Method

城市宜居性是城市居民最为关心的话题,但目前对宜居城市的评价标准尚未达成统一.结合国内外相关学者研究,从经济、社会、文化、环境4个方面构建宜居性评价指标体系,并以淮海经济区为例进行实证分析,但传统的主成分分析方法无法从横向和纵向两个角度实现动态分析,采用一种新方法,即组合加权主成分分析对城市宜居性进行量化评估,给出淮海经济区8个城市的宜居性排名,最后综合排名与评价结果,从3个方面给出提高淮海经济区城市宜居性的合理化建议.

Urban habitability is the most important topic for urban residents,but the evaluation criteria for livable cities have not yet been unified. Combined with domestic and foreign scholars research achievements,habitability evaluation index system are constructed from four aspects： economy,society,culture and environment,then the empirical analysis is carried on in the Huaihai economic zone,but the traditional principal component analysis method cannot be achieved dynamic analysis from two aspects：horizontal and vertical,so a new method,weighted combination of principal component analysis method is used to quantify the city livability evaluation,then the urban livability rankings is given. Finally,according to the evaluation results,reasonable suggestions to improve livability of cities from three aspects are put forward..