摘要
以地区生产总值等十六个指标,对全国31省区和直辖市作为区域物流系统中心的重要性做了综合评价。为了消除各评价指标之间的相关性,先运用主成分分析把原来较多的评价指标简化为较少的且不相关的综合主成分指标,再以综合主成分指标为数据源进行聚类分析,比较合理地对31省区和直辖市进行了区域物流中心分类。
This paper conducts a comprehensive evaluation on the importance of the 31 provinces and municipalities as regional logistics centers and applies principal component analysis to convert the original indices, large in number, into comprehensive principal component indices, fewer and mutually independent, which are then employed as data sources in the cluster analysis to divide the provinces and municipalities into different regional logistics center categories.
出处
《物流技术》
2009年第12期164-165,168,共3页
Logistics Technology
关键词
主成分分析
聚类分析
物流中心
principal component analysis
cluster analysis
logistics center
