A lower bound for the ELBO of the Bernoulli Variational Autoencoder

26 Mar 2020 · Robert Sicks, Ralf Korn, Stefanie Schwaar ·

We consider a variational autoencoder (VAE) for binary data. Our main innovations are an interpretable lower bound for its training objective, a modified initialization and architecture of such a VAE that leads to faster training, and a decision support for finding the appropriate dimension of the latent space via using a PCA. Numerical examples illustrate our theoretical result and the performance of the new architecture.

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AutoEncoder • PCA • VAE

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A lower bound for the ELBO of the Bernoulli Variational Autoencoder

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