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Multi-Adversarial Variational Autoencoder Networks

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arxiv 1906.06430 v1 pith:BAZQYSJT submitted 2019-06-14 cs.LG cs.CVstat.ML

classification cs.LGcs.CVstat.ML
keywords imagesvariationalautoencoderclassificationgenerationmavensmodelsmulti-adversarial
verification ladder T0 review T1 audit T2 compute T3 formal

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The unsupervised training of GANs and VAEs has enabled them to generate realistic images mimicking real-world distributions and perform image-based unsupervised clustering or semi-supervised classification. Combining the power of these two generative models, we introduce Multi-Adversarial Variational autoEncoder Networks (MAVENs), a novel network architecture that incorporates an ensemble of discriminators in a VAE-GAN network, with simultaneous adversarial learning and variational inference. We apply MAVENs to the generation of synthetic images and propose a new distribution measure to quantify the quality of the generated images. Our experimental results using datasets from the computer vision and medical imaging domains---Street View House Numbers, CIFAR-10, and Chest X-Ray datasets---demonstrate competitive performance against state-of-the-art semi-supervised models both in image generation and classification tasks.

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  1. Semi-Supervised Multi-Task Learning With Chest X-Ray Images

    eess.IV 2019-08 conditional novelty 4.0 of 10

    The paper reports that an adversarial attention U-Net with a combined KL-Tversky loss improves semi-supervised lung segmentation and classification on chest X-rays compared with TV and XETV losses.

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