Learning Sparse Latent Representations with the Deep Copula Information Bottleneck

Aleksander Wieczorek*; Mario Wieser*; Damian Murezzan; Volker Roth

ICLR 2018poster35 citations

Learning Sparse Latent Representations with the Deep Copula Information Bottleneck

Aleksander Wieczorek*, Mario Wieser*, Damian Murezzan, Volker Roth

Abstract

Deep latent variable models are powerful tools for representation learning. In this paper, we adopt the deep information bottleneck model, identify its shortcomings and propose a model that circumvents them. To this end, we apply a copula transformation which, by restoring the invariance properties of the information bottleneck method, leads to disentanglement of the features in the latent space. Building on that, we show how this transformation translates to sparsity of the latent space in the new model. We evaluate our method on artificial and real data.

Information BottleneckDeep Information BottleneckDeep Variational Information BottleneckVariational AutoencoderSparsityDisentanglementInterpretabilityCopulaMutual Information

BibTeX

@inproceedings{
wieser*2018learning,
title={Learning Sparse Latent Representations with the Deep Copula Information Bottleneck},
author={Mario Wieser* and Aleksander Wieczorek* and Damian Murezzan and Volker Roth},
booktitle={International Conference on Learning Representations},
year={2018},
url={https://openreview.net/forum?id=Hk0wHx-RW},
}