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On Adversarial Mixup Resynthesis (arxiv.org)
2 points by sel1 on Sep 6, 2019 | hide | past | pdf | discuss on HN

In plain words: A system blends the hidden codes of several images and rebuilds one output, trained so a real-versus-fake checker cannot tell it from genuine images, unlike ordinary encoders that only rebuild one input. Mixing codes to match a class label also worked with few labels.

Abstract

In this paper, we explore new approaches to combining information encoded within the learned representations of auto-encoders. We explore models that are capable of combining the attributes of multiple inputs such that a resynthesised output is trained to fool an adversarial discriminator for real versus synthesised data. Furthermore, we explore the use of such an architecture in the context of semi-supervised learning, where we learn a mixing function whose objective is to produce interpolations of hidden states, or masked combinations of latent representations that are consistent with a conditioned class label. We show quantitative and qualitative evidence that such a formulation is an interesting avenue of research.

Christopher Beckham, Sina Honari, Vikas Verma, Alex Lamb, Farnoosh Ghadiri, R Devon Hjelm, Yoshua Bengio, Christopher Pal
arXiv:1903.02709 · stat.ML, cs.LG · submitted Mar 7, 2019 · updated Oct 23, 2019
abstract · pdf · html · 'Camera-ready draft'

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