论文标题
用于学习有条件和介入分布的因果对抗网络
Causal Adversarial Network for Learning Conditional and Interventional Distributions
论文作者
论文摘要
我们提出了一个生成性因果对抗网络(CAN),用于从条件和介入分布中学习和取样。与需要给出因果图的现有Causalgan相反,我们提出的框架从数据中学习了因果关系并相应地生成样本。该提出的可以包括一个两倍的过程,即标签生成网络(LGN)和条件图像生成网络(CIGN)。 LGN是一种基于GAN的体系结构,可以从标签上学习和从因果模型中学习和样本。然后将采样的标签喂食以Cign(一种有条件的GAN体系结构),它可以学习标签,像素和像素本身之间的关系,并根据它们生成样本。该框架配备了一种干预机制。该模型是从介入分布中生成样品的模型。我们对CAN的性能进行定量和定性评估,并从经验上表明,我们的模型能够同时生成介入和条件样本,而无需访问因果图,以便在Celeba数据上应用面部生成。
We propose a generative Causal Adversarial Network (CAN) for learning and sampling from conditional and interventional distributions. In contrast to the existing CausalGAN which requires the causal graph to be given, our proposed framework learns the causal relations from the data and generates samples accordingly. The proposed CAN comprises a two-fold process namely Label Generation Network (LGN) and Conditional Image Generation Network (CIGN). The LGN is a GAN-based architecture which learns and samples from the causal model over labels. The sampled labels are then fed to CIGN, a conditional GAN architecture, which learns the relationships amongst labels and pixels and pixels themselves and generates samples based on them. This framework is equipped with an intervention mechanism which enables. the model to generate samples from interventional distributions. We quantitatively and qualitatively assess the performance of CAN and empirically show that our model is able to generate both interventional and conditional samples without having access to the causal graph for the application of face generation on CelebA data.