PAIRWISE AUGMENTED GANS WITH ADVERSARIAL RECONSTRUCTION LOSS
Authors: Aibek Alanov, Max Kochurov, Daniil Yashkov, Dmitry Vetrov
Keywords: Computer vision, Deep learning, Unsupervised Learning, Generative Adversarial Networks
TL;DR: We propose a novel autoencoding model with augmented adversarial reconstruction loss. We intoduce new metric for content-based assessment of reconstructions. 
Abstract: We propose a novel autoencoding model called Pairwise Augmented GANs. We train a generator and an encoder jointly and in an adversarial manner. The generator network learns to sample realistic objects. In turn, the encoder network at the same time is trained to map the true data distribution to the prior in  latent space. To ensure good reconstructions, we introduce an augmented adversarial reconstruction loss. Here we train a discriminator to distinguish two types of pairs: an object with its augmentation and the one with its reconstruction. We show that such adversarial loss compares objects based on the content rather than on the exact match. We experimentally demonstrate that our model generates samples and reconstructions of quality competitive with state-of-the-art on datasets MNIST, CIFAR10, CelebA and achieves good quantitative results on CIFAR10.