autoencoder-latent-space-visualization

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autoencoder-latent-space-visualization

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2-dimensional visualization of the latent space learned by a deep autoencoder on MNIST

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# Autoencoder Latent Space Exploration
![exploration](https://raw.githubusercontent.com/gr-b/autoencoder-latent-space-visualization/master/autoencoder_exploration.gif)

## Explanation
On the left is a visual representation of the latent space generated by training a deep autoencoder to project handwritten digits (MNIST dataset) from 784-dimensional space to 2-dimensional space. Notice how the autoencoder learns a clustered representation. When hovering over a pixel on this graph, the current mouse coordinates are used to project back to 784-dimensional space and the decoded vector is shown on the right.

The code in `ae.py` is clean and simple and is intended to aid understanding of autoencoders.

## Usage
To try this out, clone the repository and run 
```shell
python ae.py
```
This requires `tensorflow`, `matplotlib`, `numpy` and `tkinter` (python3).
If that's slow, try running
```shell
python ae_precomp.py
```
This file precomputes all reachable digit decodings instead of computing them in real time on hover, and is faster in some cases.

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