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Recent text-to-image models have achieved impressive results in generating high-quality images. However, when tasked with multi-concept generation creating images that contain multiple characters or objects, existing methods often suffer…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Yang Zhang , Rui Zhang , Xuecheng Nie , Haochen Li , Jikun Chen , Yifan Hao , Xin Zhang , Luoqi Liu , Ling Li

We present UniModel, a unified generative model that jointly supports visual understanding and visual generation within a single pixel-to-pixel diffusion framework. Our goal is to achieve unification along three axes: the model, the tasks,…

Computer Vision and Pattern Recognition · Computer Science 2025-11-24 Chi Zhang , Jiepeng Wang , Youming Wang , Yuanzhi Liang , Xiaoyan Yang , Zuoxin Li , Haibin Huang , Xuelong Li

Deep neural network (DNN) suffers from catastrophic forgetting when learning incrementally, which greatly limits its applications. Although maintaining a handful of samples (called `exemplars`) of each task could alleviate forgetting to…

Computer Vision and Pattern Recognition · Computer Science 2022-04-20 Yu-Ming Tang , Yi-Xing Peng , Wei-Shi Zheng

Machine unlearning (MU) is a promising cost-effective method to cleanse undesired information (generated concepts, biases, or patterns) from foundational diffusion models. While MU is orders of magnitude less costly than retraining a…

Machine Learning · Computer Science 2025-07-11 Eric Yeats , Darryl Hannan , Henry Kvinge , Timothy Doster , Scott Mahan

While generative models produce high-quality images of concepts learned from a large-scale database, a user often wishes to synthesize instantiations of their own concepts (for example, their family, pets, or items). Can we teach a model to…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Nupur Kumari , Bingliang Zhang , Richard Zhang , Eli Shechtman , Jun-Yan Zhu

In current AI era, users may request AI companies to delete their data from the training dataset due to the privacy concerns. As a model owner, retraining a model will consume significant computational resources. Therefore, machine…

Machine Learning · Computer Science 2024-05-27 Wenhan Chang , Tianqing Zhu , Heng Xu , Wenjian Liu , Wanlei Zhou

The rapid advancement of text-to-image Diffusion Models has led to their widespread public accessibility. However these models, trained on large internet datasets, can sometimes generate undesirable outputs. To mitigate this, approximate…

Machine Learning · Computer Science 2024-11-05 Andrea Schioppa , Emiel Hoogeboom , Jonathan Heek

As large-scale diffusion models continue to advance, they excel at producing high-quality images but often generate unwanted content, such as sexually explicit or violent content. Existing methods for concept removal generally guide the…

Computer Vision and Pattern Recognition · Computer Science 2024-12-04 Lingyun Zhang , Yu Xie , Yanwei Fu , Ping Chen

Concept unlearning in diffusion models is hampered by feature splitting, where concepts are distributed across many latent features, making their removal challenging and computationally expensive. We introduce SAEmnesia, a supervised sparse…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Enrico Cassano , Riccardo Renzulli , Marco Nurisso , Mirko Zaffaroni , Alan Perotti , Marco Grangetto

In traditional Distributional Semantic Models (DSMs) the multiple senses of a polysemous word are conflated into a single vector space representation. In this work, we propose a DSM that learns multiple distributional representations of a…

Computation and Language · Computer Science 2019-04-12 Eleftheria Briakou , Nikos Athanasiou , Alexandros Potamianos

In this work, we introduce Erasure of Language Memory (ELM), a principled approach to concept-level unlearning that operates by matching distributions defined by the model's own introspective classification capabilities. Our key insight is…

Computation and Language · Computer Science 2025-07-23 Rohit Gandikota , Sheridan Feucht , Samuel Marks , David Bau

Recent advances in text-to-image (T2I) diffusion models have seen rapid and widespread adoption. However, their powerful generative capabilities raise concerns about potential misuse for synthesizing harmful, private, or copyrighted…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Uichan Lee , Jeonghyeon Kim , Sangheum Hwang

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

Large Language Models (LLMs) unlearning is crucial for removing hazardous or privacy-leaking information from the model. Practical LLM unlearning demands satisfying multiple challenging objectives simultaneously: removing undesirable…

Machine Learning · Computer Science 2026-04-20 Yisheng Zhong , Sijia Liu , Zhuangdi Zhu

Instruction-based unlearning has proven effective for modifying the behavior of large language models at inference time, but whether this paradigm extends to other generative models remains unclear. In this work, we investigate…

Computation and Language · Computer Science 2026-04-03 Zeliang Zhang , Rui Sun , Jiani Liu , Qi Wu , Chenliang Xu

Pretrained language models memorize vast amounts of information, including private and copyrighted data, raising significant safety concerns. Retraining these models after excluding sensitive data is prohibitively expensive, making machine…

Computation and Language · Computer Science 2024-10-04 Minseok Choi , Kyunghyun Min , Jaegul Choo

How can we effectively unlearn selected concepts from pre-trained generative foundation models without resorting to extensive retraining? This research introduces `continual unlearning', a novel paradigm that enables the targeted removal of…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Kartik Thakral , Tamar Glaser , Tal Hassner , Mayank Vatsa , Richa Singh

The recent proliferation of large-scale text-to-image models has led to growing concerns that such models may be misused to generate harmful, misleading, and inappropriate content. Motivated by this issue, we derive a technique inspired by…

Machine Learning · Computer Science 2023-10-18 Alvin Heng , Harold Soh

Unsupervised learning of keypoints and landmarks has seen significant progress with the help of modern neural network architectures, but performance is yet to match the supervised counterpart, making their practicability questionable. We…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Eric Hedlin , Gopal Sharma , Shweta Mahajan , Xingzhe He , Hossam Isack , Abhishek Kar Helge Rhodin , Andrea Tagliasacchi , Kwang Moo Yi

Textural Inversion, a prompt learning method, learns a singular text embedding for a new "word" to represent image style and appearance, allowing it to be integrated into natural language sentences to generate novel synthesised images.…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Chen Jin , Ryutaro Tanno , Amrutha Saseendran , Tom Diethe , Philip Teare