摘要
本文定义了样品之间的距离,采用重心法确定类与类之间的距离。给出了动态聚类的计算方法;利用类与类之间的距离定义了评估大气颗粒污染的相对尺度—相对污染率;由此得到了哈尔滨市区大气颗粒物中一些元素含量的相对分布;并得到了一些有意义的结论。
In this paper, distance between two samples and distance between two classes were defined. Dynamic clustering method were given. A relative pollution rate of every class was defined. So we got relative distributions of some elements carried by airbrone particles in HARBIN and obtained some significant results. Distance, Classfication, Cluster Point, Particle, Relative Pollution rate
出处
《数学的实践与认识》
CSCD
1997年第4期289-296,共8页
Mathematics in Practice and Theory
基金
本文得到国家自然科学基金资助
