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stat.ML2026
Direct Intermediate Initialization for Tilted Diffusion Samplers
Gregory D. Bellchambers
Some diffusion posterior samplers construct Gaussian-tilted intermediate distributions along the reverse process. We observe that these targets can be pulled back to clean-space po…
stat.ML2025
Exploiting the Exact Denoising Posterior Score in Training-Free Guidance of Diffusion Models
Gregory Bellchambers
The success of diffusion models has driven interest in performing conditional sampling via training-free guidance of the denoising process to solve image restoration and other inve…