Symmetric Equilibrium Learning of VAEs

Research output: Contribution to book/Conference proceedings/Anthology/ReportConference contributionContributedpeer-review

Contributors

Abstract

We view variational autoencoders (VAE) as decoder-encoder pairs, which map distributions in the data space to distributions in the latent space and vice versa. The standard learning approach for VAEs is the maximisation of the evidence lower bound (ELBO). It is asymmetric in that it aims at learning a latent variable model while using the encoder as an auxiliary means only. Moreover, it requires a closed form a-priori latent distribution. This limits its applicability in more complex scenarios, such as general semi-supervised learning and employing complex generative models as priors. We propose a Nash equilibrium learning approach, which is symmetric with respect to the encoder and decoder and allows learning VAEs in situations where both the data and the latent distributions are accessible only by sampling. The flexibility and simplicity of this approach allows its application to a wide range of learning scenarios and downstream tasks.

Details

Original languageEnglish
Title of host publicationProceedings of The 27th International Conference on Artificial Intelligence and Statistics
Pages3214-3222
Number of pages9
Volume238
Publication statusPublished - 2024
Peer-reviewedYes

Publication series

SeriesProceedings of Machine Learning Research
Volume238

External IDs

Scopus 85194179611

Keywords