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[Author] Zhihao LIU(1hit)

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  • Iterative Adversarial Inference with Re-Inference Chain for Deep Graphical Models

    Zhihao LIU  Hui YIN  Hua HUANG  

     
    LETTER-Artificial Intelligence, Data Mining

      Pubricized:
    2019/05/07
      Vol:
    E102-D No:8
      Page(s):
    1586-1589

    Deep Graphical Model (DGM) based on Generative Adversarial Nets (GANs) has shown promise in image generation and latent variable inference. One of the typical models is the Iterative Adversarial Inference model (GibbsNet), which learns the joint distribution between the data and its latent variable. We present RGNet (Re-inference GibbsNet) which introduces a re-inference chain in GibbsNet to improve the quality of generated samples and inferred latent variables. RGNet consists of the generative, inference, and discriminative networks. An adversarial game is cast between the generative and inference networks and the discriminative network. The discriminative network is trained to distinguish between (i) the joint inference-latent/data-space pairs and re-inference-latent/data-space pairs and (ii) the joint sampled-latent/generated-data-space pairs. We show empirically that RGNet surpasses GibbsNet in the quality of inferred latent variables and achieves comparable performance on image generation and inpainting tasks.