CUED Publications database

Learning disentangled representations with semi-supervised deep generative models

Narayanaswamy, S and Paige, TB and Van de Meent, J-W and Desmaison, A and Goodman, N and Kohli, P and Wood, F and Torr, P (2017) Learning disentangled representations with semi-supervised deep generative models. In: 31st Conference on Neural Information Processing Systems, 2017-12-4 to 2017-12-9, Long Beach, California, USA pp. 5927-5937..

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Abstract

Variational autoencoders (VAEs) learn representations of data by jointly training a probabilistic encoder and decoder network. Typically these models encode all features of the data into a single variable. Here we are interested in learning disentangled representations that encode distinct aspects of the data into separate variables. We propose to learn such representations using model architectures that generalise from standard VAEs, employing a general graphical model structure in the encoder and decoder. This allows us to train partially-specified models that make relatively strong assumptions about a subset of interpretable variables and rely on the flexibility of neural networks to learn representations for the remaining variables. We further define a general objective for semi-supervised learning in this model class, which can be approximated using an importance sampling procedure. We evaluate our framework's ability to learn disentangled representations, both by qualitative exploration of its generative capacity, and quantitative evaluation of its discriminative ability on a variety of models and datasets.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Subjects: UNSPECIFIED
Divisions: Div F > Computational and Biological Learning
Depositing User: Cron Job
Date Deposited: 14 Nov 2018 20:04
Last Modified: 30 Mar 2021 07:27
DOI: