Poster

Latent Bernoulli Autoencoder

Jiri Fajtl · Vasileios Argyriou · Dorothy Monekosso · Paolo Remagnino

Keywords: [ Architectures ] [ Computer Vision ] [ Deep Generative Models ] [ Autoencoders ] [ Deep Learning - Generative Models and Autoencoders ]

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Abstract:

In this work, we pose the question whether it is possible to design and train an autoencoder model in an end-to-end fashion to learn representations in the multivariate Bernoulli latent space, and achieve performance comparable with the state-of-the-art variational methods. Moreover, we investigate how to generate novel samples and perform smooth interpolation and attributes modification in the binary latent space. To meet our objective, we propose a simplified, deterministic model with a straight-through gradient estimator to learn the binary latents and show its competitiveness with the latest VAE methods. Furthermore, we propose a novel method based on a random hyperplane rounding for sampling and smooth interpolation in the latent space. Our method performs on a par or better than the current state-of-the-art methods on common CelebA, CIFAR-10 and MNIST datasets.

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