层次聚类与K-means

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作者:ColinQin

作用：Clustering organizes things that are close into groups

算法步骤：

a).Find closest two thing

b).Put them together

c).Find next closest

算法结果：A tree showing how close things are to each other

http://gallery.r-enthusiasts.com/RGraphGallery.php?graph=79

作用：Final estimate of cluster centroids

算法步骤：

a)Fix a number of clusters

b) Get “centroids” of each cluster

c)Assign things to closest centroid

d)Reclaculate centroids

算法结果：按设定的cluster值分成相应和groups.

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标签：算法数据结构

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