R-型聚类中基于Gamma-test的一种新度量  

A new measure of R-type cluster based on Gamma-test

作　　者：王超伟[1] 叶剑俊[1] 张帼奋[1] 

机构地区：[1]浙江大学数学系,浙江杭州310027

出　　处：《浙江大学学报（理学版）》2010年第1期17-21,共5页Journal of Zhejiang University（Science Edition）

基　　金：国家自然科学基金资助项目(批准号10771192)

摘　　要：对R-型聚类分析的度量进行了研究,提出了一种基于Gamma-test理论的新度量.给出了新度量的5种不同定义方式,对各定义的性质进行了讨论.并将其应用于经典的系统聚类法,对所得的聚类结果与用相关系数作为度量所得的结果进行比较,分析了各定义的优劣,得出了最有效的新度量定义.A new measure based on the theory of Gamma-test which can be used in R-type clustering analysis is proposed. 5 different definitions are considered and their properties are also discussed. They are used in the classic clustering algorithm Hierarchical Clustering Algorithm, and then the results are compared with the results of using correlation coefficient as measure. Further more, the most effective definition is found.

关 键 词：Gamma—Test 新度量 R-型聚类 

分 类 号：O213[理学—概率论与数理统计]