On statistical rates of conditional diffusion transformers: Approximation, estimation and minimax optimality

JYC Hu, W Wu, YC Lee, YC Huang, M Chen… - arxiv preprint arxiv …, 2024 - arxiv.org
We investigate the approximation and estimation rates of conditional diffusion transformers
(DiTs) with classifier-free guidance. We present a comprehensive analysis for``in …

Gradient-Free Classifier Guidance for Diffusion Model Sampling

R Shenoy, Z Pan, K Balakrishnan, Q Cheng… - arxiv preprint arxiv …, 2024 - arxiv.org
Image generation using diffusion models have demonstrated outstanding learning
capabilities, effectively capturing the full distribution of the training dataset. They are known …

Training-Free Constrained Generation With Stable Diffusion Models

S Zampini, J Christopher, L Oneto, D Anguita… - arxiv preprint arxiv …, 2025 - arxiv.org
Stable diffusion models represent the state-of-the-art in data synthesis across diverse
domains and hold transformative potential for applications in science and engineering, eg …

Decoupling Training-Free Guided Diffusion by ADMM

Y Zhang, Z Liu, Z Li, Z Li, JJ Clark, X Si - arxiv preprint arxiv:2411.12773, 2024 - arxiv.org
In this paper, we consider the conditional generation problem by guiding off-the-shelf
unconditional diffusion models with differentiable loss functions in a plug-and-play fashion …

On the Guidance of Flow Matching

R Feng, T Wu, C Yu, W Deng, P Hu - arxiv preprint arxiv:2502.02150, 2025 - arxiv.org
Flow matching has shown state-of-the-art performance in various generative tasks, ranging
from image generation to decision-making, where guided generation is pivotal. However …