isLouisHsu / isLouisHsu/isLouisHsu.github.io
Neighborhood Preserving Embedding | LOUIS' BLOG
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Description
https://louishsu.xyz/2019/08/12/Neighborhood-Preserving-Embedding/
前言Reference前言在Locally Linear Embedding一节中介绍了非线性降维方法LLE，原数据到低维数据没有指定映射方法，故不适用于新数据点。本文介绍的NPE是在其基础上的改进。 原理设有$M$个$N$维数据，构成矩阵$X$ X_{N \times M} = \left[ \begin{matrix} | & | &
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