Multistep Distillation of Diffusion Models via Moment Matching

Bibliographic Details
Title: Multistep Distillation of Diffusion Models via Moment Matching
Authors: Salimans, Tim, Mensink, Thomas, Heek, Jonathan, Hoogeboom, Emiel
Publication Year: 2024
Collection: Computer Science
Subject Terms: Computer Science - Machine Learning, Computer Science - Artificial Intelligence, Computer Science - Computer Vision and Pattern Recognition, Computer Science - Neural and Evolutionary Computing
More Details: We present a new method for making diffusion models faster to sample. The method distills many-step diffusion models into few-step models by matching conditional expectations of the clean data given noisy data along the sampling trajectory. Our approach extends recently proposed one-step methods to the multi-step case, and provides a new perspective by interpreting these approaches in terms of moment matching. By using up to 8 sampling steps, we obtain distilled models that outperform not only their one-step versions but also their original many-step teacher models, obtaining new state-of-the-art results on the Imagenet dataset. We also show promising results on a large text-to-image model where we achieve fast generation of high resolution images directly in image space, without needing autoencoders or upsamplers.
Document Type: Working Paper
Access URL: http://arxiv.org/abs/2406.04103
Accession Number: edsarx.2406.04103
Database: arXiv
More Details
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