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神经网络:静态部分 - 陈燊的博客 #189

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chenshen03 opened this issue Feb 23, 2019 · 0 comments
Open

神经网络:静态部分 - 陈燊的博客 #189

chenshen03 opened this issue Feb 23, 2019 · 0 comments

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@chenshen03
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https://chenshen.xyz/categories/deep-learning/%E7%A5%9E%E7%BB%8F%E7%BD%91%E7%BB%9C%EF%BC%9A%E9%9D%99%E6%80%81%E9%83%A8%E5%88%86/

白化白化操作的输入是特征基准上的数据,然后对每个维度除以其特征值来对数值范围进行归一化。该变换的几何解释是:如果数据服从多变量的高斯分布,那么经过白化后,数据的分布将会是一个均值为零,且协方差相等的矩阵。该操作的代码如下: 123# 对数据进行白化操作:# 除以特征值 Xwhite = Xrot / np.sqrt(S + 1e-5)

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