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Implementation of simple autoencoders networks with Keras

Autoencoders

Open In Colab

Autoencoders (AE) are neural networks that aims to copy their inputs to their outputs. They work by compressing the input into a latent-space representation, and then reconstructing the output from this representation. This kind of network is composed of two parts :

  1. Encoder: This is the part of the network that compresses the input into a latent-space representation. It can be represented by an encoding function h=f(x).
  2. Decoder: This part aims to reconstruct the input from the latent space representation. It can be represented by a decoding function r=g(h).
drawing

This notebook show the implementation of five types of autoencoders :

  • Vanilla Autoencoder
  • Multilayer Autoencoder
  • Convolutional Autoencoder
  • Regularized Autoencoder
  • Variational Autoencoder

The explanation of each (except VAE) can be found here