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Machine unlearning (MU) is gaining increasing attention due to the need to remove or modify predictions made by machine learning (ML) models. While training models have become more efficient and accurate, the importance of unlearning…

Machine Learning · Computer Science 2024-10-28 Thanveer Shaik , Xiaohui Tao , Haoran Xie , Lin Li , Xiaofeng Zhu , Qing Li

Removing the influence of a specified subset of training data from a machine learning model may be required to address issues such as privacy, fairness, and data quality. Retraining the model from scratch on the remaining data after removal…

Machine Learning · Computer Science 2022-09-05 Salvatore Mercuri , Raad Khraishi , Ramin Okhrati , Devesh Batra , Conor Hamill , Taha Ghasempour , Andrew Nowlan

Machine Learning models increasingly face data integrity challenges due to the use of large-scale training datasets drawn from the Internet. We study what model developers can do if they detect that some data was manipulated or incorrect.…

Machine Learning · Computer Science 2024-10-18 Shashwat Goel , Ameya Prabhu , Philip Torr , Ponnurangam Kumaraguru , Amartya Sanyal

Recently, an increasing number of laws have governed the useability of users' privacy. For example, Article 17 of the General Data Protection Regulation (GDPR), the right to be forgotten, requires machine learning applications to remove a…

Machine Learning · Computer Science 2024-11-19 Haibo Zhang , Toru Nakamura , Takamasa Isohara , Kouichi Sakurai

With the continued advancement and widespread adoption of machine learning (ML) models across various domains, ensuring user privacy and data security has become a paramount concern. In compliance with data privacy regulations, such as…

Machine Learning · Computer Science 2024-07-09 Nexhi Sula , Abhinav Kumar , Jie Hou , Han Wang , Reza Tourani

As pretrained models are increasingly shared on the web, ensuring that models can forget or delete sensitive, copyrighted, or private information upon request has become crucial. Machine unlearning has been proposed to address this…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Yurim Jang , Jaeung Lee , Dohyun Kim , Jaemin Jo , Simon S. Woo

Machine unlearning seeks to remove the influence of specific training data from a model, a need driven by privacy regulations and robustness concerns. Existing approaches typically modify model parameters, but such updates can be unstable,…

Machine Learning · Computer Science 2026-05-29 Antonio Almudévar , Alfonso Ortega

Machine unlearning (MU) aims to eliminate information that has been learned from specific training data, namely forgetting data, from a pre-trained model. Currently, the mainstream of existing MU methods involves modifying the forgetting…

Machine Learning · Computer Science 2025-10-13 Zhengbao He , Tao Li , Xinwen Cheng , Zhehao Huang , Xiaolin Huang

Machine unlearning enables the removal of specific data from ML models to uphold the right to be forgotten. While approximate unlearning algorithms offer efficient alternatives to full retraining, this work reveals that they fail to…

Machine Learning · Computer Science 2025-07-29 Yaxin Xiao , Qingqing Ye , Li Hu , Huadi Zheng , Haibo Hu , Zi Liang , Haoyang Li , Yijie Jiao

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…

Computation and Language · Computer Science 2025-06-02 Xu Wang , Zihao Li , Benyou Wang , Yan Hu , Difan Zou

Deep machine unlearning is the problem of `removing' from a trained neural network a subset of its training set. This problem is very timely and has many applications, including the key tasks of removing biases (RB), resolving confusion…

Machine Learning · Computer Science 2023-10-31 Meghdad Kurmanji , Peter Triantafillou , Jamie Hayes , Eleni Triantafillou

This study investigates the concept of the `right to be forgotten' within the context of large language models (LLMs). We explore machine unlearning as a pivotal solution, with a focus on pre-trained models--a notably under-researched area.…

Computation and Language · Computer Science 2024-05-31 Jin Yao , Eli Chien , Minxin Du , Xinyao Niu , Tianhao Wang , Zezhou Cheng , Xiang Yue

Machine learning has attracted widespread attention and evolved into an enabling technology for a wide range of highly successful applications, such as intelligent computer vision, speech recognition, medical diagnosis, and more. Yet a…

Cryptography and Security · Computer Science 2023-06-07 Heng Xu , Tianqing Zhu , Lefeng Zhang , Wanlei Zhou , Philip S. Yu

Learning algorithms and data are the driving forces for machine learning to bring about tremendous transformation of industrial intelligence. However, individuals' right to retract their personal data and relevant data privacy regulations…

Machine Learning · Computer Science 2023-05-23 Junde Li , Swaroop Ghosh

Machine unlearning for security is studied in this context. Several spam email detection methods exist, each of which employs a different algorithm to detect undesired spam emails. But these models are vulnerable to attacks. Many attackers…

Machine Learning · Computer Science 2021-12-28 Nishchal Parne , Kyathi Puppaala , Nithish Bhupathi , Ripon Patgiri

Machine Unlearning (MU) aims to remove target training data from a trained model so that the removed data no longer influences the model's behavior, fulfilling "right to be forgotten" obligations under data privacy laws. Yet, we observe…

Cryptography and Security · Computer Science 2026-01-27 Jaeung Lee , Suhyeon Yu , Yurim Jang , Simon S. Woo , Jaemin Jo

As machine learning becomes more pervasive and data privacy regulations evolve, the ability to remove private or copyrighted information from trained models is becoming an increasingly critical requirement. Existing unlearning methods often…

As AI systems become more capable, widely deployed, and increasingly autonomous in critical areas such as cybersecurity, biological research, and healthcare, ensuring their safety and alignment with human values is paramount. Machine…

Machine unlearning is a process to remove specific data points from a trained model while maintaining the performance on the retain data, addressing privacy or legal requirements. Despite its importance, existing unlearning evaluations tend…

Machine Learning · Computer Science 2026-01-30 Yongwoo Kim , Sungmin Cha , Donghyun Kim

Privacy regulations require the erasure of data from deep learning models. This is a significant challenge that is amplified in Federated Learning, where data remains on clients, making full retraining or coordinated updates often…

Machine Learning · Computer Science 2026-01-27 Antonio Balordi , Lorenzo Manini , Fabio Stella , Alessio Merlo