论文标题
差异差异：PG-GAN的桥接标准化和分离
Difference-in-Differences: Bridging Normalization and Disentanglement in PG-GAN
论文作者
论文摘要
什么机制导致甘恩纠缠？尽管开发脱离的甘恩引起了足够的关注，但尚不清楚纠缠是如何源于gan转换的。在这项研究中，我们提出了一个差异差异（DID）反事实框架来设计实验，以分析渐进式增长GAN（PG-GAN）中的纠缠机制。我们的实验阐明了像素归一化在输入单位启动转换过程中如何导致PG-GAN的纠缠。我们发现，像素归一化会通过镶嵌被消融对象占据的区域而导致对象纠缠。我们还发现单位对象关系确定像素归一化是否以及如何导致对象纠缠。从理论上讲，我们的DID框架可以保证我们发现的机制是可靠的，可以解释和全面的。
What mechanisms causes GAN's entanglement? Although developing disentangled GAN has attracted sufficient attention, it is unclear how entanglement is originated by GAN transformation. We in this research propose a difference-in-difference (DID) counterfactual framework to design experiments for analyzing the entanglement mechanism in on of the Progressive-growing GAN (PG-GAN). Our experiment clarify the mechanisms how pixel normalization causes PG-GAN entanglement during a input-unit-ablation transformation. We discover that pixel normalization causes object entanglement by in-painting the area occupied by ablated objects. We also discover the unit-object relation determines whether and how pixel normalization causes objects entanglement. Our DID framework theoretically guarantees that the mechanisms that we discover is solid, explainable and comprehensively.
