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Diffusion models have achieved unprecedented success in image generation but pose increasing risks in terms of privacy, fairness, and security. A growing demand exists to \emph{erase} sensitive or harmful concepts (e.g., NSFW content,…

Computer Vision and Pattern Recognition · Computer Science 2025-10-08 Zixuan Fu , Yan Ren , Finn Carter , Chenyue Wen , Le Ku , Daheng Yu , Emily Davis , Bo Zhang

Image restoration aims to enhance low quality images, producing high quality images that exhibit natural visual characteristics and fine semantic attributes. Recently, the diffusion model has emerged as a powerful technique for image…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Jiangtong Tan , Feng Zhao

The differential equation-based image restoration approach aims to establish learnable trajectories connecting high-quality images to a tractable distribution, e.g., low-quality images or a Gaussian distribution. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Zhiyu Zhu , Jinhui Hou , Hui Liu , Huanqiang Zeng , Junhui Hou

Reinforcement learning for training end-to-end autonomous driving models in closed-loop simulations is gaining growing attention. However, most simulation environments differ significantly from real-world conditions, creating a substantial…

Computer Vision and Pattern Recognition · Computer Science 2025-08-22 Chaojun Ni , Guosheng Zhao , Xiaofeng Wang , Zheng Zhu , Wenkang Qin , Xinze Chen , Guanghong Jia , Guan Huang , Wenjun Mei

With the proliferation of location-aware devices, large amount of trajectories have been generated when agents such as people, vehicles and goods flow around the urban environment. These raw trajectories, typically collected from various…

Machine Learning · Computer Science 2024-09-05 Jinming Wang , Hai Wang , Hongkai Wen , Geyong Min , Man Luo

Text-to-image diffusion models have demonstrated remarkable capabilities in generating high-quality images, yet their tendency to reproduce undesirable concepts, such as NSFW content, copyrighted styles, or specific objects, poses growing…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Zhiqi Zhang , Xinhao Zhong , Yi Sun , Shuoyang Sun , Bin Chen , Shu-Tao Xia , Xuan Wang

Recently, research on denoising diffusion models has expanded its application to the field of image restoration. Traditional diffusion-based image restoration methods utilize degraded images as conditional input to effectively guide the…

Computer Vision and Pattern Recognition · Computer Science 2024-10-25 Zhenning Shi , Haoshuai Zheng , Chen Xu , Changsheng Dong , Bin Pan , Xueshuo Xie , Along He , Tao Li , Huazhu Fu

Erasing concepts from large-scale text-to-image (T2I) diffusion models has become increasingly crucial due to the growing concerns over copyright infringement, offensive content, and privacy violations. In scalable applications,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Ouxiang Li , Yuan Wang , Xinting Hu , Houcheng Jiang , Yanbin Hao , Fuli Feng

In concept erasure, a model is modified to selectively prevent it from generating a target concept. Despite the rapid development of new methods, it remains unclear how thoroughly these approaches remove the target concept from the model.…

Machine Learning · Computer Science 2025-11-10 Kevin Lu , Nicky Kriplani , Rohit Gandikota , Minh Pham , David Bau , Chinmay Hegde , Niv Cohen

Concept erasure, which fine-tunes diffusion models to remove undesired or harmful visual concepts, has become a mainstream approach to mitigating unsafe or illegal image generation in text-to-image models.However, existing removal methods…

Computer Vision and Pattern Recognition · Computer Science 2025-12-17 Hao Chen , Yiwei Wang , Songze Li

Text-to-image diffusion models (DMs) are frequently abused to produce harmful or copyrighted content, violating public interests. Concept erasure (unlearning) is a promising paradigm to alleviate this issue. However, there exists a peculiar…

Machine Learning · Computer Science 2026-05-08 Manyi Li , Yufan Liu , Lai Jiang , Bing Li , Yuming Li , Weiming Hu

Text-to-Image (T2I) models have demonstrated impressive capabilities in generating high-quality and diverse visual content from natural language prompts. However, uncontrolled reproduction of sensitive, copyrighted, or harmful imagery poses…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Yiwei Xie , Ping Liu , Zheng Zhang

Text-to-video diffusion transformers encode semantic information unevenly across model depth, which constrains effective concept erasure. We identify a representational bottleneck, termed concept-layer topological alignment, under which…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Yiwei Xie , Ping Liu , Zheng Zhang

Text-to-image diffusion models often memorize training data, revealing a fundamental failure to generalize beyond the training set. Current mitigation strategies typically sacrifice image quality or prompt alignment to reduce memorization.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Sathwik Karnik , Juyeop Kim , Sanmi Koyejo , Jong-Seok Lee , Somil Bansal

Diffusion-based generative models represent a forefront direction in generative AI research today. Recent studies in physics have suggested that the renormalization group (RG) can be conceptualized as a diffusion process. This insight…

Disordered Systems and Neural Networks · Physics 2024-03-04 Artan Sheshmani , Yi-Zhuang You , Baturalp Buyukates , Amir Ziashahabi , Salman Avestimehr

Distributed representations provide a vector space that captures meaningful relationships between data instances. The distributed nature of these representations, however, entangles together multiple attributes or concepts of data instances…

Machine Learning · Computer Science 2023-12-04 Somnath Basu Roy Chowdhury , Nicholas Monath , Avinava Dubey , Amr Ahmed , Snigdha Chaturvedi

Concept erasure serves as a vital safety mechanism for removing unwanted concepts from text-to-image (T2I) models. While extensively studied in U-Net and dual-stream architectures (e.g., Flux), this task remains under-explored in the recent…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Nanxiang Jiang , Zhaoxin Fan , Baisen Wang , Daiheng Gao , Junhang Cheng , Jifeng Guo , Yalan Qin , Yeying Jin , Hongwei Zheng , Faguo Wu , Wenjun Wu

Diffusion models (DMs) are widely used for text-to-image generation, but their strong generative capabilities also raise concerns about unsafe or undesirable content. Concept erasure aims to mitigate these risks by removing specific…

Artificial Intelligence · Computer Science 2026-05-19 Mengyu Sun , Ziyuan Yang , Zunlong Zhou , Junxu Liu , Haibo Hu , Yi Zhang

Generating images from text has become easier because of the scaling of diffusion models and advancements in the field of vision and language. These models are trained using vast amounts of data from the Internet. Hence, they often contain…

Computer Vision and Pattern Recognition · Computer Science 2024-08-30 Masane Fuchi , Tomohiro Takagi

Diffusion models have demonstrated remarkable capability in generating high-quality visual content from textual descriptions. However, since these models are trained on large-scale internet data, they inevitably learn undesirable concepts,…

Machine Learning · Computer Science 2025-02-18 Anh Bui , Khanh Doan , Trung Le , Paul Montague , Tamas Abraham , Dinh Phung