|
个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：Director of Institute of Systems Engineering
其他任职：大连市数据科学与知识管理重点实验室主任
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：系统工程研究所
学科：管理科学与工程. 系统工程
办公地点：经济管理学院D337室
联系方式：0411-84708007
电子邮箱：dlutguo@dlut.edu.cn
Cluster number estimation based on multiway normalized cut criterion in spectral clustering
点击次数：
论文类型：期刊论文
发表时间：2011-01-01
发表刊物：ICIC Express Letters
收录刊物：EI、Scopus
卷号：5
期号：1
页面范围：155-161
ISSN号：1881803X
摘要：In order to evaluate the performance and estimate the cluster number in the spectral clustering, a cluster validation criterion called PerfectRatio based on multiway normalized cut criterion is defined. PerfectRatio measures the degree of perfect of the similarity matrix through the ratio of the total normalized association of the original data set to the sum of the leading eigenvalues of corresponding stochastic transition matrix. One of the good features of this measure is that it can reflect the hierarchy of a data set under a properly chosen Gaussian kernel parameter of the similarity matrix. Numerical experiments are illustrated to demonstrate the effectiveness of the proposed method. ? 2011 ISSN.