It applies the unsupervised learning technique of https://en.wikipedia.org/wiki/Autoencoder https://en.wikipedia.org/wiki/Autoencoder As for why it's important

It applies the unsupervised learning technique of https://en.wikipedia.org/wiki/Autoencoder https://en.wikipedia.org/wiki/Autoencoder As for why it's important and not just another encoder like mpeg4, see my response at https://news.ycombinator.com/item?id=11830437 https://news.ycombinator.com/item?id=11830437