Title
Variational Lossy Autoencoder.
Abstract
Representation learning seeks to expose certain aspects of observed data in a learned representation that's amenable to downstream tasks like classification. For instance, a good representation for 2D images might be one that describes only global structure and discards information about detailed texture. In this paper, we present a simple but principled method to learn such global representations by combining Variational Autoencoder (VAE) with neural autoregressive models such as RNN, MADE and PixelRNN/CNN. Our proposed VAE model allows us to have control over what the global latent code can learn and , by designing the architecture accordingly, we can force the global latent code to discard irrelevant information such as texture in 2D images, and hence the VAE only "autoencodes" data in a lossy fashion. In addition, by leveraging autoregressive models as both prior distribution $p(z)$ and decoding distribution $p(x|z)$, we can greatly improve generative modeling performance of VAEs, achieving new state-of-the-art results on MNIST, OMNIGLOT and Caltech-101 Silhouettes density estimation tasks.
Year
Venue
DocType
2017
ICLR
Conference
Volume
Citations 
PageRank 
abs/1611.02731
0
0.34
References 
Authors
0
8
Name
Order
Citations
PageRank
Xi Chen1164954.94
Diederik P. Kingma28013263.16
Tim Salimans3125947.13
Yan Duan477527.97
Prafulla Dhariwal5832.88
John Schulman6180666.95
Ilya Sutskever7258141120.24
Pieter Abbeel86363376.48