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Machine unlearning is a prominent and challenging field, driven by regulatory demands for user data deletion and heightened privacy awareness. Existing approaches involve retraining model or multiple finetuning steps for each deletion…

机器学习 · 计算机科学 2024-08-07 Sangamesh Kodge , Gobinda Saha , Kaushik Roy

Machine Unlearning (MU) has recently attracted considerable attention as a solution to privacy and copyright issues in large language models (LLMs). Existing MU methods aim to remove specific target sentences from an LLM while minimizing…

计算与语言 · 计算机科学 2025-09-22 Tomoya Yamashita , Yuuki Yamanaka , Masanori Yamada , Takayuki Miura , Toshiki Shibahara , Tomoharu Iwata

Machine unlearning is a promising approach to improve LLM safety by removing unwanted knowledge from the model. However, prevailing gradient-based unlearning methods suffer from issues such as high computational costs, hyperparameter…

机器学习 · 计算机科学 2025-04-14 Aashiq Muhamed , Jacopo Bonato , Mona Diab , Virginia Smith

This paper introduces Unilogit, a novel self-distillation method for machine unlearning in Large Language Models. Unilogit addresses the challenge of selectively forgetting specific information while maintaining overall model utility, a…

计算与语言 · 计算机科学 2025-05-12 Stefan Vasilev , Christian Herold , Baohao Liao , Seyyed Hadi Hashemi , Shahram Khadivi , Christof Monz

As the right to be forgotten becomes legislated worldwide, machine unlearning mechanisms have emerged to efficiently update models for data deletion and enhance user privacy protection. However, existing machine unlearning algorithms…

机器学习 · 计算机科学 2025-11-11 Lisong He , Yi Yang , Xiangyu Chang

Large language models (LLMs) have shown to pose social and ethical risks such as generating toxic language or facilitating malicious use of hazardous knowledge. Machine unlearning is a promising approach to improve LLM safety by directly…

机器学习 · 计算机科学 2024-06-18 Swanand Ravindra Kadhe , Farhan Ahmed , Dennis Wei , Nathalie Baracaldo , Inkit Padhi

Users may inadvertently upload personally identifiable information (PII) to Machine Learning as a Service (MLaaS) providers. When users no longer want their PII on these services, regulations like GDPR and COPPA mandate a right to forget…

计算机视觉与模式识别 · 计算机科学 2024-12-03 Chenhan Zhang , Benjamin Zi Hao Zhao , Hassan Asghar , Dali Kaafar

Machine unlearning (MU) aims to efficiently remove sensitive or harmful memory from a pre-trained model. The key challenge is to balance the potential tradeoff between unlearning efficacy and utility preservation, which involves forgetting…

机器学习 · 计算机科学 2026-02-04 Shiji Zhou , Tianbai Yu , Zhi Zhang , Heng Chang , Xiao Zhou , Dong Wu , Han Zhao

Large language models (LLMs) store vast amounts of information, making them powerful yet raising privacy and safety concerns when selective knowledge removal is required. Existing unlearning strategies, ranging from gradient-based…

计算与语言 · 计算机科学 2025-06-02 Xu Wang , Zihao Li , Benyou Wang , Yan Hu , Difan Zou

Large language models (LLMs) may memorize sensitive or copyrighted content, raising privacy and legal concerns. Due to the high cost of retraining from scratch, researchers attempt to employ machine unlearning to remove specific content…

计算与语言 · 计算机科学 2025-08-12 Xiaojian Yuan , Tianyu Pang , Chao Du , Kejiang Chen , Weiming Zhang , Min Lin

Current unlearning methods for LLMs optimize on the private information they seek to remove by incorporating it into their fine-tuning data. We argue this not only risks reinforcing exposure to sensitive data, but also fundamentally…

机器学习 · 计算机科学 2026-03-03 Yan Scholten , Sophie Xhonneux , Leo Schwinn , Stephan Günnemann

Modern recommender systems face a critical challenge in complying with privacy regulations like the 'right to be forgotten': removing a user's data without disrupting recommendations for others. Traditional unlearning methods address this…

信息检索 · 计算机科学 2025-11-11 Haichao Zhang , Chong Zhang , Peiyu Hu , Shi Qiu , Jia Wang

Machine unlearning in foundation models (e.g., language and vision transformers) is essential for privacy and safety; however, existing approaches are unstable and unreliable. A widely used strategy, the gradient difference method, applies…

机器学习 · 计算机科学 2026-03-19 Arpit Garg , Hemanth Saratchandran , Ravi Garg , Simon Lucey

Machine Unlearning (MU) aims to remove the information of specific training data from a trained model, ensuring compliance with privacy regulations and user requests. While one line of existing MU methods relies on linear parameter updates…

人工智能 · 计算机科学 2026-05-13 Yingdan Shi , Ren Wang

Large language models (LLMs) should undergo rigorous audits to identify potential risks, such as copyright and privacy infringements. Once these risks emerge, timely updates are crucial to remove undesirable responses, ensuring legal and…

机器学习 · 计算机科学 2025-02-27 Qizhou Wang , Jin Peng Zhou , Zhanke Zhou , Saebyeol Shin , Bo Han , Kilian Q. Weinberger

Large Language Models (LLMs) have demonstrated strong capabilities in memorizing vast amounts of knowledge across diverse domains. However, the ability to selectively forget specific knowledge is critical for ensuring the safety and…

计算与语言 · 计算机科学 2025-05-20 Zhijie Deng , Chris Yuhao Liu , Zirui Pang , Xinlei He , Lei Feng , Qi Xuan , Zhaowei Zhu , Jiaheng Wei

Despite significant progress in safety alignment, large language models (LLMs) remain susceptible to jailbreak attacks. Existing defense mechanisms have not fully deleted harmful knowledge in LLMs, which allows such attacks to bypass…

计算与语言 · 计算机科学 2025-05-27 Zesheng Shi , Yucheng Zhou , Jing Li

Machine unlearning for large language models (LLMs) aims to remove targeted knowledge while preserving general capability. In this paper, we recast LLM unlearning as an asymmetric two-task problem: retention is the primary objective and…

计算与语言 · 计算机科学 2026-04-17 Zeguan Xiao , Siqing Li , Yong Wang , Xuetao Wei , Jian Yang , Yun Chen , Guanhua Chen

Driven by privacy protection laws and regulations, unlearning in Large Language Models (LLMs) is gaining increasing attention. However, current research often neglects the interpretability of the unlearning process, particularly concerning…

机器学习 · 计算机科学 2025-04-10 Xiaohua Feng , Yuyuan Li , Chengye Wang , Junlin Liu , Li Zhang , Chaochao Chen

The undesired memorization of sensitive information by Large Language Models (LLMs) has emphasized the need for safety mechanisms that can regulate model behavior. This has led to the development of machine unlearning techniques that enable…

机器学习 · 计算机科学 2025-10-10 Anu Agarwal , Mihir Pamnani , Dilek Hakkani-Tur