论文标题

用于断开数据的生成对抗网络的合奏

Ensembles of Generative Adversarial Networks for Disconnected Data

论文作者

Luzi, Lorenzo, Balestriero, Randall, Baraniuk, Richard G.

论文摘要

大多数当前的计算机视觉数据集由断开的集合组成,例如来自不同类别的图像。我们证明,这种类型的数据的分布无法用连续的生成网络表示没有错误。它们可以通过两种方式表示:通过网络集合或具有截短潜在空间的单个网络。我们表明,在实践中,合奏比截断的分布更为可取。我们构建了一个正规化的优化问题,该问题建立了单个连续gan,gan,有条件的甘恩和高斯混合物gan之间的关系。可以有效地计算此正规化,我们从经验上表明,我们的框架具有性能的最佳位置,可以通过高参数调整找到。与单个连续GAN或CGAN相比,该合奏框架可以更好地性能,同时保持较少的总参数。

Most current computer vision datasets are composed of disconnected sets, such as images from different classes. We prove that distributions of this type of data cannot be represented with a continuous generative network without error. They can be represented in two ways: With an ensemble of networks or with a single network with truncated latent space. We show that ensembles are more desirable than truncated distributions in practice. We construct a regularized optimization problem that establishes the relationship between a single continuous GAN, an ensemble of GANs, conditional GANs, and Gaussian Mixture GANs. This regularization can be computed efficiently, and we show empirically that our framework has a performance sweet spot which can be found with hyperparameter tuning. This ensemble framework allows better performance than a single continuous GAN or cGAN while maintaining fewer total parameters.

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