Training diffusion neural networks by backpropagating differentiable rewards

EP4762488A1Pending Publication Date: 2026-06-24GDM HOLDING LLC

Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
GDM HOLDING LLC
Filing Date
2024-09-30
Publication Date
2026-06-24

AI Technical Summary

Technical Problem

Diffusion neural networks struggle to align their training data distribution with desired post-training behavior, leading to a mismatch between modeled and desired output qualities.

Method used

The system employs a differentiable reward function to fine-tune the diffusion neural network through reinforcement learning, allowing it to generate data items with desired properties by backpropagating rewards through the sampling process.

Benefits of technology

This approach enables the diffusion neural network to produce outputs that meet specific quality criteria, such as aesthetic appeal, while reducing computational and memory costs through techniques like gradient checkpointing and truncated gradient computation.

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Abstract

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for training a diffusion neural network using a differentiable reward function.
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