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Related papers: Knowledge Unlearning for Mitigating Privacy Risks …

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Concerned with privacy threats, memorization in LLMs is often seen as undesirable, specifically for learning. In this paper, we study whether memorization can be avoided when optimally learning a language, and whether the privacy threat…

Machine Learning · Computer Science 2025-07-22 Bishwamittra Ghosh , Soumi Das , Qinyuan Wu , Mohammad Aflah Khan , Krishna P. Gummadi , Evimaria Terzi , Deepak Garg

Machine learning models are vulnerable to adversarial attacks, including attacks that leak information about the model's training data. There has recently been an increase in interest about how to best address privacy concerns, especially…

Machine Learning · Computer Science 2024-05-30 Keltin Grimes , Collin Abidi , Cole Frank , Shannon Gallagher

Large Language Models (LLMs), pre-trained on massive text corpora, exhibit remarkable human-level language understanding, reasoning, and decision-making abilities. However, they tend to memorize unwanted information, such as private or…

Machine Learning · Computer Science 2026-01-01 Xiangyu Zhou , Yao Qiang , Saleh Zare Zade , Douglas Zytko , Prashant Khanduri , Dongxiao Zhu

Machine unlearning removes certain training data points and their influence from AI models (e.g., when a data owner revokes their consent to allow models to learn from the data). In this position paper, we propose to lift data-tracing…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Yuwen Tan , Boqing Gong

Large Language Models (LLMs) offer extensive knowledge across various domains, but they may inadvertently memorize sensitive, unauthorized, or malicious data, such as personal information in the medical and financial sectors. Machine…

Computation and Language · Computer Science 2024-10-16 YuXuan Wu , Bonaventure F. P. Dossou , Dianbo Liu

Machine unlearning is concerned with the task of removing knowledge learned from particular data points from a trained model. In the context of large language models (LLMs), unlearning has recently received increased attention, particularly…

Computation and Language · Computer Science 2025-09-03 Aravind Krishnan , Siva Reddy , Marius Mosbach

The wide adoption and application of Masked language models~(MLMs) on sensitive data (from legal to medical) necessitates a thorough quantitative investigation into their privacy vulnerabilities -- to what extent do MLMs leak information…

Machine Learning · Computer Science 2022-11-07 Fatemehsadat Mireshghallah , Kartik Goyal , Archit Uniyal , Taylor Berg-Kirkpatrick , Reza Shokri

With the passage of the Right to Be Forgotten (RTBF) regulations and the scaling up of language model training datasets, research on model unlearning in large language models (LLMs) has become more crucial. Before the era of LLMs, machine…

Computation and Language · Computer Science 2024-06-05 Bichen Wang , Yuzhe Zi , Yixin Sun , Yanyan Zhao , Bing Qin

Rapid advances in Natural Language Processing (NLP) have revolutionized many fields, including healthcare. However, these advances raise significant privacy concerns, especially when pre-trained models fine-tuned and specialized on…

Computation and Language · Computer Science 2026-05-21 Antoine Boutet , Lucas Magnana , Juliette Sénéchal

Large multimodal language models have proven transformative in numerous applications. However, these models have been shown to memorize and leak pre-training data, raising serious user privacy and information security concerns. While data…

Computation and Language · Computer Science 2023-10-04 Yang Chen , Ethan Mendes , Sauvik Das , Wei Xu , Alan Ritter

We present a principled, per-instance approach to quantifying the difficulty of unlearning via fine-tuning. We begin by sharpening an analysis of noisy gradient descent for unlearning (Chien et al., 2024), obtaining a better…

The explosive growth of machine learning has made it a critical infrastructure in the era of artificial intelligence. The extensive use of data poses a significant threat to individual privacy. Various countries have implemented…

Cryptography and Security · Computer Science 2024-06-11 Hengzhu Liu , Ping Xiong , Tianqing Zhu , Philip S. Yu

Large language models (LLMs) have been shown to memorize and reproduce content from their training data, raising significant privacy concerns, especially with web-scale datasets. Existing methods for detecting memorization are primarily…

Cryptography and Security · Computer Science 2026-01-07 Zhenpeng Wu , Jian Lou , Zibin Zheng , Chuan Chen

Large language models (LLMs) trained on web-scale corpora can memorize sensitive training data, posing significant privacy risks. Differential privacy (DP) has emerged as a principled framework that limits the influence of individual data…

Computation and Language · Computer Science 2026-05-13 Eduardo Tenorio , Karuna Bhaila , Xintao Wu

Pretrained knowledge memorized in LLMs raises critical concerns over safety and privacy, which has motivated LLM Unlearning as a technique for selectively removing the influences of undesirable knowledge. Existing approaches, rooted in…

Computation and Language · Computer Science 2026-02-04 Zhengbang Yang , Yisheng Zhong , Junyuan Hong , Zhuangdi Zhu

Machine unlearning in the domain of large language models (LLMs) has attracted great attention recently, which aims to effectively eliminate undesirable behaviors from LLMs without full retraining from scratch. In this paper, we explore the…

Computation and Language · Computer Science 2025-01-07 Zibin Pan , Shuwen Zhang , Yuesheng Zheng , Chi Li , Yuheng Cheng , Junhua Zhao

Large scale adoption of large language models has introduced a new era of convenient knowledge transfer for a slew of natural language processing tasks. However, these models also run the risk of undermining user trust by exposing unwanted…

Computation and Language · Computer Science 2022-04-21 Richard Plant , Valerio Giuffrida , Dimitra Gkatzia

Generative models such as Large Language Models (LLM) and Multimodal Large Language models (MLLMs) trained on massive web corpora can memorize and disclose individuals' confidential and private data, raising legal and ethical concerns.…

Computation and Language · Computer Science 2025-02-18 Zheyuan Liu , Guangyao Dou , Mengzhao Jia , Zhaoxuan Tan , Qingkai Zeng , Yongle Yuan , Meng Jiang

Machine Unlearning aims to remove specific data from trained models, addressing growing privacy and ethical concerns. We provide a theoretical analysis of a simple and widely used method - gradient ascent - used to reverse the influence of…

Machine Learning · Computer Science 2025-10-17 Odelia Melamed , Gilad Yehudai , Gal Vardi

Current unlearning methods for large language models usually rely on reverse optimization to reduce target token probabilities. However, this paradigm disrupts the subsequent tokens prediction, degrading model performance and linguistic…

Computation and Language · Computer Science 2025-05-29 Haoming Xu , Ningyuan Zhao , Liming Yang , Sendong Zhao , Shumin Deng , Mengru Wang , Bryan Hooi , Nay Oo , Huajun Chen , Ningyu Zhang