Towards More General Control of Diffusion Models Using Jeffrey Guidance

· Source: Artificial Intelligence · Field: Technology & Digital — Artificial Intelligence & Machine Learning, Computer Vision & Pattern Recognition · Depth: Expert, quick

Summary

Jeffrey guidance is a new principled framework designed to enhance the control of diffusion models beyond standard conditional sampling. This method extends diffusion-model control by explicitly targeting a prescribed distribution, leveraging Jeffrey's rule of conditioning. It updates marginal distributions towards the target while preserving the conditional structure and minimally perturbing the joint distribution. The framework was demonstrated in two key applications. First, by targeting a prescribed embedding distribution, specifically Inception embeddings, it achieved substantial reductions in FID scores on both CIFAR-10 and FFHQ datasets. Second, Jeffrey guidance was applied to improve fairness on CelebA-HQ, successfully updating an unconditional diffusion model to enforce independence between specific attributes. This approach offers greater flexibility in guiding diffusion model outputs at sampling time.

Key takeaway

For Machine Learning Engineers developing diffusion models, if you need more precise control over generated outputs or want to enforce specific distributional properties, consider implementing Jeffrey guidance. This framework allows you to explicitly target desired embedding distributions for FID reduction or enforce attribute independence for fairness, moving beyond standard conditional sampling limitations. Evaluate its impact on your specific generation tasks and fairness metrics.

Key insights

Jeffrey guidance offers principled control for diffusion models by explicitly targeting prescribed distributions using Jeffrey's rule of conditioning.

Principles

Method

Jeffrey guidance applies Jeffrey's rule of conditioning to update marginal distributions towards a prescribed target. This preserves the conditional structure and minimally perturbs the joint distribution of the diffusion model.

In practice

Topics

Best for: Research Scientist, Computer Vision Engineer, AI Scientist, Machine Learning Engineer, AI Ethicist

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Editorial summary, takeaway, and curation by AIssential. Original article published by Artificial Intelligence.