Papers › Latent Normalizing Flows for Many-to-Many Cross-Domain Mappings

Latent Normalizing Flows for Many-to-Many Cross-Domain Mappings

16 Feb 2020ICLR 2020 1arXiv:2002.06661archive 2025-07-28

Shweta Mahajan, Iryna Gurevych, Stefan Roth

Learned joint representations of images and text form the backbone of several important cross-domain tasks such as image captioning. Prior work mostly maps both domains into a common latent representation in a purely supervised fashion. This is rather restrictive, however, as the two domains follow distinct generative processes. Therefore, we propose a novel semi-supervised framework, which models shared information between domains and domain-specific information separately. The information shared between the domains is aligned with an invertible neural network. Our model integrates normalizing flow-based priors for the domain-specific information, which allows us to learn diverse many-to-many mappings between the two domains. We demonstrate the effectiveness of our model on diverse tasks, including image captioning and text-to-image synthesis.

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