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DiscreteDDIMScheduler

The DiscreteDDIMScheduler samples each canvas position from the exact discrete posterior of the uniform corruption process (D3PM), following Structured Denoising Diffusion Models in Discrete State-Spaces. It is parameter free, and the final step deterministically commits the predicted tokens. An optional predictor-corrector mode adds the leave-one-out Gibbs sweeps of Uniform Diffusion Models Revisited: Leave-One-Out Denoiser and Absorbing State Reformulation through corrector_steps.

This scheduler is used by [DiffusionGemmaPipeline].

DiscreteDDIMScheduler

[[autodoc]] DiscreteDDIMScheduler

DiscreteDDIMSchedulerOutput

[[autodoc]] schedulers.scheduling_discrete_ddim.DiscreteDDIMSchedulerOutput