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(Clustering)

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2 (description model)

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Iris Data datasets Wine Data Hdclassif AdultUCI Data arules

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Iris Data setosaversicolorvirginica

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Iris Data 4 1. Sepal.Length 2. Sepal.Width 3. Petal.Length 4. Petal.Width

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Clustering ... clustering 3 class => 3 cluster cluster class

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(distance function) Hierarchical clustering Complete-linkage Single-linkage Centroid-linkage Average-linkage Wards method Partitional clustering k-means k-medoids (density) DBScan

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Data Mining Lab., Univ. of Seoul, Copyright 2008 Clustering: k-means i : centroid (i+1) 8

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Iris K-means data(iris) library(stats) myiris