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Chumeng Liang

6 accepted papers

2025

Online Reward-Weighted Fine-Tuning of Flow Matching with Wasserstein Regularization

ICLR 2025poster

Recent advancements in reinforcement learning (RL) have achieved great success in fine-tuning diffusion-based generative models. However, fine-tuning continuous flow-based generative models to align with arbitrary user-defined reward functions remains challenging, particularly due to issues such as…

Cited by 0SourcePDFScholar
2025

Targeted Attack Improves Protection against Unauthorized Diffusion Customization

ICLR 2025spotlight

Diffusion models build a new milestone for image generation yet raising public concerns, for they can be fine-tuned on unauthorized images for customization. Protection based on adversarial attacks rises to encounter this unauthorized diffusion customization, by adding protective watermarks to image…

Cited by 0SourcePDFScholar
2024

CGI-DM: Digital Copyright Authentication for Diffusion Models via Contrasting Gradient Inversion

CVPR 2024poster

Diffusion Models (DMs) have evolved into advanced image generation tools especially for few-shot generation where a pre-trained model is fine-tuned on a small set of images to capture a specific style or object. Despite their success concerns exist about potential copyright violations stemming from…

2024

Toward effective protection against diffusion-based mimicry through score distillation

ICLR 2024poster

While generative diffusion models excel in producing high-quality images, they can also be misused to mimic authorized images, posing a significant threat to AI systems. Efforts have been made to add calibrated perturbations to protect images from diffusion-based mimicry pipelines. However, most of…

2023

Adversarial Example Does Good: Preventing Painting Imitation from Diffusion Models via Adversarial Examples

ICML 2023oral

Recently, Diffusion Models (DMs) boost a wave in AI for Art yet raise new copyright concerns, where infringers benefit from using unauthorized paintings to train DMs and generate novel paintings in a similar style. To address these emerging copyright violations, in this paper, we are the first to ex…