Distributional Diffusion Models (DDMs) replace the standard mean-prediction denoiser with a \emph{distributional} denoiser trained via a scoring rule objective, learning a stochastic approximation to $p(x_1 \mid x_t)$ rather than its conditional mean. However, scaling DDMs to modern image-generation settings faces two...
Tommaso Martorella, Alexandre Galashov, F. Krause et al.· 0 citations
Diffusion models have revolutionized generative modeling for continuous data through the gradual refinement of a belief state. This iterative refinement has not yet carried over to discrete diffusion models, which discard uncertainty at intermediate steps through categorical sampling (information collapse). We propose...
Justin Deschenaux, Alexandre Galashov, Andrew Campbell et al.· 1 citation
This paper learns the guidance schedule as a function of diffusion time, conditioning and the current noisy sample, in order to better align sampled images with the text prompt.
A. Pokle, Alexandre Galashov, Arnaud Doucet et al.· 0 citations
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