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Diff for: machine-learning/coursera-machine-learning/README.md

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- 什么时候使用SVM
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## 无监督学习
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[无监督学习]
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- [聚类算法](clustering.md)
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- K-Means聚类
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- DBScan聚类

Diff for: machine-learning/coursera-machine-learning/clustering.md

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# 聚类算法<!-- TOC depthFrom:1 depthTo:6 withLinks:1 updateOnSave:1 orderedList:0 -->
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# 聚类算法
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<!-- TOC depthFrom:1 depthTo:6 withLinks:1 updateOnSave:1 orderedList:0 -->
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- [聚类算法<!-- TOC depthFrom:1 depthTo:6 withLinks:1 updateOnSave:1 orderedList:0 -->](#聚类算法-toc-depthfrom1-depthto6-withlinks1-updateonsave1-orderedlist0-)
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- [聚类算法](#聚类算法)
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- [K-Means](#k-means)
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- [优化目标](#优化目标)
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- [随机初始化](#随机初始化)
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## 距离计算
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(1). 闵可夫斯基距离Minkowski/(其中欧式距离:$p=2$)
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(1). 闵可夫斯基距离Minkowski/(其中欧式距离:_p = 2_)
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<p align="center">
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<img src="https://latex.codecogs.com/gif.latex?dist(X,Y)={{\left({{\sum\limits_{i=1}^n\left|x_i-y_i\right|}^p}\right)}^{\frac{1}{p}}}" title="dist(X,Y)={{\left({{\sum\limits_{i=1}^n\left|x_i-y_i\right|}^p}\right)}^{\frac{1}{p}}}" />
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</p>
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</p>
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Pearson相关系数即将 _x__y_ 坐标向量各自平移到原点后的夹角余弦。
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[回到顶部](#聚类算法)

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