Lecture 5 Clustering Analysis Dr.李晓瑜Xiaoyu Li Email:xiaoyuuestc@uestc.edu.cn http://blog.sciencenet.cn/u/uestc2014xiaoyu 2019-Spring SunData Group http://www.sundatagroup.org School of Information and Software Engineering,UESTC 1966 Copyright2019 by Xiaoyu Li
Dr.李晓瑜 Xiaoyu Li Email：xiaoyuuestc@uestc.edu.cn http://blog.sciencenet.cn/u/uestc2014xiaoyu 2019-Spring Lecture 5 Clustering Analysis SunData Group http://www.sundatagroup.org/ School of Information and Software Engineering, UESTC Copyright © 2019 by Xiaoyu Li. 1
●30 ata Gro10 Content (6H) 5.1 Introduction of clustering analysis 5.2 Similarity calculation 5.3 Overview of basic clustering techniques .5.4 Partitioning method 5.5 Hierarchical method 5.6 Clustering based on density and grid 5.7 Clustering based on models ·5.8 Outlier analysis 2 Copyright 2019 by Xiaoyu Li
Content（6H） 5.1 Introduction of clustering analysis 5.2 Similarity calculation 5.3 Overview of basic clustering techniques 5.4 Partitioning method 5.5 Hierarchical method 5.6 Clustering based on density and grid 5.7 Clustering based on models 5.8 Outlier analysis Copyright © 2019 by Xiaoyu Li. 2
Introduction of Clustering 4 DATA 3 Copyright 2019 by Xiaoyu Li
Copyright © 2019 by Xiaoyu Li. 3 Introduction of Clustering
1 What's Cluster Analysis?(1) ·“物以类聚，人以群分” Birds of the same feather flock together. 口 口 The result of a cluster analysis shown as the coloring of the squares into three clusters. DATA 4 Copyright 2019 by Xiaoyu Li
Copyright © 2019 by Xiaoyu Li. 4 1 What’s Cluster Analysis?(1) “物以类聚，人以群分” Birds of the same feather flock together. The result of a cluster analysis shown as the coloring of the squares into three clusters
1 What's Cluster Analysis?(2) Clustering(cluster):Collection of data objects .Objects are similar in the same cluster(high intra-class similarity). Objects are different in different cluster(low inter-class similarity). Cluster Analysis Grouping the collection of physical or abstract objects into a process of multiple classes composed of similar objects. ATA 5 Copyright 2019 by Xiaoyu Li
Copyright © 2019 by Xiaoyu Li. 5 Clustering(cluster): Collection of data objects Objects are similar in the same cluster(high intra-class similarity). Objects are different in different cluster(low inter-class similarity). Cluster Analysis Grouping the collection of physical or abstract objects into a process of multiple classes composed of similar objects. 1 What’s Cluster Analysis?(2)