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Membership inference attacks (MIAs) have become the standard tool for evaluating privacy leakage in machine learning (ML). Among them, the Likelihood-Ratio Attack (LiRA) is widely regarded as the state of the art when sufficient shadow…

密码学与安全 · 计算机科学 2026-03-10 Najeeb Jebreel , Mona Khalil , David Sánchez , Josep Domingo-Ferrer

This survey reviews how large language models (LLMs) are transforming synthetic training data generation in both natural language and code domains. By producing artificial but task-relevant examples, these models can significantly augment…

计算与语言 · 计算机科学 2025-11-21 Mihai Nadas , Laura Diosan , Andreea Tomescu

Detecting LLM training data is generally framed as a membership inference attack (MIA) problem. However, conventional MIAs operate passively on fixed model weights, using log-likelihoods or text generations. In this work, we introduce…

机器学习 · 计算机科学 2026-02-24 Junjie Oscar Yin , John X. Morris , Vitaly Shmatikov , Sewon Min , Hannaneh Hajishirzi

As a long-term threat to the privacy of training data, membership inference attacks (MIAs) emerge ubiquitously in machine learning models. Existing works evidence strong connection between the distinguishability of the training and testing…

机器学习 · 计算机科学 2022-07-14 Dingfan Chen , Ning Yu , Mario Fritz

Recent advances in large language model (LLM) training have highlighted the need for diverse, high-quality instruction data. Recently, many works are exploring synthetic data generation using LLMs. However, they primarily focus on prompt…

计算与语言 · 计算机科学 2024-12-10 Yifang Chen , David Zhu , Simon Du , Kevin Jamieson , Yang Liu

The rapid advancement of Large Language Models (LLMs) has been driven by extensive datasets that may contain sensitive information, raising serious privacy concerns. One notable threat is the Membership Inference Attack (MIA), where…

密码学与安全 · 计算机科学 2025-12-17 Yihan Liao , Jacky Keung , Xiaoxue Ma , Jingyu Zhang , Yicheng Sun

Synthetic data has become an increasingly popular way to share data without revealing sensitive information. Though Membership Inference Attacks (MIAs) are widely considered the gold standard for empirically assessing the privacy of a…

密码学与安全 · 计算机科学 2025-05-06 Zexi Yao , Nataša Krčo , Georgi Ganev , Yves-Alexandre de Montjoye

We investigate whether synthetic question-answer (QA) data generated by large language models (LLMs) can serve as an effective proxy for human-labeled benchmarks when the latter is unavailable. We assess the reliability of synthetic…

计算与语言 · 计算机科学 2025-10-22 Jonas van Elburg , Peter van der Putten , Maarten Marx

Machine learning (ML) has become a core component of many real-world applications and training data is a key factor that drives current progress. This huge success has led Internet companies to deploy machine learning as a service (MLaaS).…

密码学与安全 · 计算机科学 2018-12-18 Ahmed Salem , Yang Zhang , Mathias Humbert , Pascal Berrang , Mario Fritz , Michael Backes

Membership Inference Attack (MIA) determines the presence of a record in a machine learning model's training data by querying the model. Prior work has shown that the attack is feasible when the model is overfitted to its training data or…

密码学与安全 · 计算机科学 2018-02-15 Yunhui Long , Vincent Bindschaedler , Lei Wang , Diyue Bu , Xiaofeng Wang , Haixu Tang , Carl A. Gunter , Kai Chen

Safety classifiers are essential safeguards within generative AI systems, filtering harmful content or identifying at-risk users when interacting with large language models. Despite their necessity, these models are trained on sensitive…

机器学习 · 计算机科学 2026-05-25 Anthony Hughes , Alexander Goldberg , Prince Jha , Adam Perer , Nikolaos Aletras , Niloofar Mireshghallah

Large vision-language models (LVLMs) derive their capabilities from extensive training on vast corpora of visual and textual data. Empowered by large-scale parameters, these models often exhibit strong memorization of their training data,…

密码学与安全 · 计算机科学 2025-11-05 Jinhua Yin , Peiru Yang , Chen Yang , Huili Wang , Zhiyang Hu , Shangguang Wang , Yongfeng Huang , Tao Qi

The scarcity of high-quality annotated medical data, particularly in mental health, poses a significant bottleneck for training robust machine learning models. Privacy regulations restrict data sharing, making synthetic data generation a…

Retrieval-Augmented Generation (RAG) is a state-of-the-art technique that mitigates issues such as hallucinations and knowledge staleness in Large Language Models (LLMs) by retrieving relevant knowledge from an external database to assist…

密码学与安全 · 计算机科学 2024-09-27 Yuying Li , Gaoyang Liu , Chen Wang , Yang Yang

Recently, adapting the idea of self-supervised learning (SSL) on continuous speech has started gaining attention. SSL models pre-trained on a huge amount of unlabeled audio can generate general-purpose representations that benefit a wide…

密码学与安全 · 计算机科学 2022-08-16 Wei-Cheng Tseng , Wei-Tsung Kao , Hung-yi Lee

There is a great need for data in computing education research. Data is needed to understand how students behave, to train models of student behavior to optimally support students, and to develop and validate new assessment tools and…

计算机与社会 · 计算机科学 2024-11-19 Juho Leinonen , Paul Denny , Olli Kiljunen , Stephen MacNeil , Sami Sarsa , Arto Hellas

Recent studies have shown that Large Language Models (LLMs) struggle to accurately retrieve information and maintain reasoning capabilities when processing long-context inputs. To address these limitations, we propose a finetuning approach…

机器学习 · 计算机科学 2024-10-15 Zheyang Xiong , Vasilis Papageorgiou , Kangwook Lee , Dimitris Papailiopoulos

In the text processing context, most ML models are built on word embeddings. These embeddings are themselves trained on some datasets, potentially containing sensitive data. In some cases this training is done independently, in other cases,…

计算与语言 · 计算机科学 2021-06-23 Saeed Mahloujifar , Huseyin A. Inan , Melissa Chase , Esha Ghosh , Marcello Hasegawa

The high cost of model training makes it increasingly desirable to develop techniques for unlearning. These techniques seek to remove the influence of a training example without having to retrain the model from scratch. Intuitively, once a…

机器学习 · 计算机科学 2024-05-22 Jamie Hayes , Ilia Shumailov , Eleni Triantafillou , Amr Khalifa , Nicolas Papernot

Diffusion-based generative models have shown great potential for image synthesis, but there is a lack of research on the security and privacy risks they may pose. In this paper, we investigate the vulnerability of diffusion models to…

计算机视觉与模式识别 · 计算机科学 2023-05-31 Jinhao Duan , Fei Kong , Shiqi Wang , Xiaoshuang Shi , Kaidi Xu