Nie, Weili and Vahdat, Arash and Anandkumar, Anima (2021) Controllable and Compositional Generation with Latent-Space Energy-Based Models. In: Advances in Neural Information Processing Systems 34 (NeurIPS 2021). Advances in Neural Information Processing Systems , pp. 15498-15512. ISBN 9781713845393. https://resolver.caltech.edu/CaltechAUTHORS:20220714-224708055
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Abstract
Controllable generation is one of the key requirements for successful adoption of deep generative models in real-world applications, but it still remains as a great challenge. In particular, the compositional ability to generate novel concept combinations is out of reach for most current models. In this work, we use energy-based models (EBMs) to handle compositional generation over a set of attributes. To make them scalable to high-resolution image generation, we introduce an EBM in the latent space of a pre-trained generative model such as StyleGAN. We propose a novel EBM formulation representing the joint distribution of data and attributes together, and we show how sampling from it is formulated as solving an ordinary differential equation (ODE). Given a pre-trained generator, all we need for controllable generation is to train an attribute classifier. Sampling with ODEs is done efficiently in the latent space and is robust to hyperparameters. Thus, our method is simple, fast to train, and efficient to sample. Experimental results show that our method outperforms the state-of-the-art in both conditional sampling and sequential editing. In compositional generation, our method excels at zero-shot generation of unseen attribute combinations. Also, by composing energy functions with logical operators, this work is the first to achieve such compositionality in generating photo-realistic images of resolution 1024 x 1024. Code is available at this https URL https://github.com/NVlabs/LACE.
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Record Number: | CaltechAUTHORS:20220714-224708055 | ||||||||||||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20220714-224708055 | ||||||||||||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||
ID Code: | 115610 | ||||||||||||||||||
Collection: | CaltechAUTHORS | ||||||||||||||||||
Deposited By: | George Porter | ||||||||||||||||||
Deposited On: | 15 Jul 2022 23:04 | ||||||||||||||||||
Last Modified: | 15 Jul 2022 23:04 |
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