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了解K-Means算法

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January 08, 2017
Technology
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 了解K-Means算法

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yafei002

January 08, 2017
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Transcript

  1. K-Means算法 yafei002

  2. K均值算法工作原理 SSE(误差平方和)

  3. 特点 优点：简单 缺点/局限： 1. 对离群值和噪音敏感 2. 适用于具有中心（质心）概念的数 据 3. 仅能获得局部最优解

    4. 对初始聚簇中心敏感 5. 选择最优的k值比较困难 6. 潜在问题可能产生“空聚簇”

  4. 《数据挖掘导论》 《机器学习实战》 《数据挖掘十大 算法》 参考