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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…

计算机视觉与模式识别 · 计算机科学 2025-05-30 Yiwei Xie , Ping Liu , Zheng Zhang

Diffusion models and flow matching have demonstrated remarkable success in text-to-image generation. While many existing alignment methods primarily focus on fine-tuning pre-trained generative models to maximize a given reward function,…

机器学习 · 统计学 2026-02-03 Yidong Ouyang , Liyan Xie , Hongyuan Zha , Guang Cheng

Large-scale generative models have shown impressive image-generation capabilities, propelled by massive data. However, this often inadvertently leads to the generation of harmful or inappropriate content and raises copyright concerns.…

机器学习 · 计算机科学 2025-03-11 Myeongseob Ko , Henry Li , Zhun Wang , Jonathan Patsenker , Jiachen T. Wang , Qinbin Li , Ming Jin , Dawn Song , Ruoxi Jia

The recently proposed generative flow networks (GFlowNets) are a method of training a policy to sample compositional discrete objects with probabilities proportional to a given reward via a sequence of actions. GFlowNets exploit the…

机器学习 · 计算机科学 2024-02-27 Daniil Tiapkin , Nikita Morozov , Alexey Naumov , Dmitry Vetrov

Diffusion models dominate the space of text-to-image generation, yet they may produce undesirable outputs, including explicit content or private data. To mitigate this, concept ablation techniques have been explored to limit the generation…

计算机视觉与模式识别 · 计算机科学 2024-12-03 Matan Rusanovsky , Shimon Malnick , Amir Jevnisek , Ohad Fried , Shai Avidan

Diffusion models have become the de-facto approach for generating visual data, which are trained to match the distribution of the training dataset. In addition, we also want to control generation to fulfill desired properties such as…

机器学习 · 计算机科学 2024-12-30 Dinghuai Zhang , Yizhe Zhang , Jiatao Gu , Ruixiang Zhang , Josh Susskind , Navdeep Jaitly , Shuangfei Zhai

The multi-step denoising process in diffusion and Flow Matching models causes major efficiency issues, which motivates research on few-step generation. We present Solution Flow Models (SoFlow), a framework for one-step generation from…

机器学习 · 计算机科学 2026-03-03 Tianze Luo , Haotian Yuan , Zhuang Liu

Recent advances in text-to-image diffusion models enable photorealistic image generation, but they also risk producing malicious content, such as NSFW images. To mitigate risk, concept erasure methods are studied to facilitate the model to…

计算机视觉与模式识别 · 计算机科学 2025-10-07 Ruidong Chen , Honglin Guo , Lanjun Wang , Chenyu Zhang , Weizhi Nie , An-An Liu

Recent advances in large-scale text-to-image diffusion models have heightened concerns about their potential misuse, especially in generating harmful or misleading content. This underscores the urgent need for effective machine unlearning,…

计算机视觉与模式识别 · 计算机科学 2025-08-11 Agnieszka Polowczyk , Alicja Polowczyk , Dawid Malarz , Artur Kasymov , Marcin Mazur , Jacek Tabor , Przemysław Spurek

Large-scale diffusion models, known for their impressive image generation capabilities, have raised concerns among researchers regarding social impacts, such as the imitation of copyrighted artistic styles. In response, existing approaches…

机器学习 · 计算机科学 2024-02-12 Mengnan Zhao , Lihe Zhang , Tianhang Zheng , Yuqiu Kong , Baocai Yin

Remarkable progress in text-to-image diffusion models has brought a major concern about potentially generating images on inappropriate or trademarked concepts. Concept erasing has been investigated with the goals of deleting target concepts…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Byung Hyun Lee , Sungjin Lim , Seunggyu Lee , Dong Un Kang , Se Young Chun

Recent advancements in text-to-image diffusion models have brought them to the public spotlight, becoming widely accessible and embraced by everyday users. However, these models have been shown to generate harmful content such as…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Anubhav Jain , Yuya Kobayashi , Takashi Shibuya , Yuhta Takida , Nasir Memon , Julian Togelius , Yuki Mitsufuji

Concept erasure in text-to-image diffusion models aims to disable pre-trained diffusion models from generating images related to a target concept. To perform reliable concept erasure, the properties of robustness and locality are desirable.…

计算机视觉与模式识别 · 计算机科学 2024-07-19 Chi-Pin Huang , Kai-Po Chang , Chung-Ting Tsai , Yung-Hsuan Lai , Fu-En Yang , Yu-Chiang Frank Wang

Flow-matching models deliver state-of-the-art fidelity in image and video generation, but the inherent sequential denoising process renders them slower. Existing acceleration methods like distillation, trajectory truncation, and consistency…

计算机视觉与模式识别 · 计算机科学 2026-02-12 Divya Jyoti Bajpai , Dhruv Bhardwaj , Soumya Roy , Tejas Duseja , Harsh Agarwal , Aashay Sandansing , Manjesh Kumar Hanawal

Generalized Zero-Shot Learning (GZSL) aims to recognize images from both the seen and unseen classes by transferring semantic knowledge from seen to unseen classes. It is a promising solution to take the advantage of generative models to…

计算机视觉与模式识别 · 计算机科学 2022-07-11 Zhi Chen , Yadan Luo , Sen Wang , Jingjing Li , Zi Huang

The Generative Flow Network is a probabilistic framework where an agent learns a stochastic policy for object generation, such that the probability of generating an object is proportional to a given reward function. Its effectiveness has…

机器学习 · 计算机科学 2022-10-10 Ling Pan , Dinghuai Zhang , Aaron Courville , Longbo Huang , Yoshua Bengio

Video Diffusion Models (VDMs) can generate high-quality videos, but often struggle with producing temporally coherent motion. Optical flow supervision is a promising approach to address this, with prior works commonly employing…

计算机视觉与模式识别 · 计算机科学 2025-04-22 Kuanting Wu , Kei Ota , Asako Kanezaki

Recent advance in text-to-image diffusion models have significantly facilitated the generation of high-quality images, but also raising concerns about the illegal creation of harmful content, such as copyrighted images. Existing concept…

计算机视觉与模式识别 · 计算机科学 2025-01-06 Zihao Wang , Yuxiang Wei , Fan Li , Renjing Pei , Hang Xu , Wangmeng Zuo

Machine unlearning poses challenges in removing mislabeled, contaminated, or problematic data from a pretrained model. Current unlearning approaches and evaluation metrics are solely focused on model predictions, which limits insight into…

机器学习 · 计算机科学 2026-04-13 Khoa Tran , Simon S. Woo

Text-to-image (T2I) diffusion models often inadvertently generate unwanted concepts such as watermarks and unsafe images. These concepts, termed as the "implicit concepts", could be unintentionally learned during training and then be…

计算机视觉与模式识别 · 计算机科学 2024-10-10 Zhili Liu , Kai Chen , Yifan Zhang , Jianhua Han , Lanqing Hong , Hang Xu , Zhenguo Li , Dit-Yan Yeung , James Kwok