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编码器——vae #17

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maiff opened this issue Feb 28, 2019 · 1 comment
Open

编码器——vae #17

maiff opened this issue Feb 28, 2019 · 1 comment

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@maiff
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maiff commented Feb 28, 2019

注意编码器的运用
denoise and dimensionality reduction

编码器的种类

  • vanlla autoencoder
  • Multilayer autoencoder
  • Convolutional autoencoder
  • Regularized autoencoder

扁粉自编码器
前置知识 混合高斯模型

需要看的知识

  • tutorial blog tutorial paper
  • kHpccR.png
@maiff maiff changed the title 编码器 编码器——vae Jan 27, 2020
@maiff
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maiff commented Jan 27, 2020

在变分自编码器的z上,为什么z可以直接从正态分布里采样?
因为loss决定的最后p(z)一定接近正态分布就可以采样了
1u4gG4.md.png

然后只有训练的时候用到了重参数,因为虽然最后p(z)是接近与正态但是在训练的时候不是,训练的时候是每个x对应一个z,所以无法直接从pz采样,采用重参数。

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