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Membership inference attacks (MIA) attempt to verify the membership of a given data sample in the training set for a model. MIA has become relevant in recent years, following the rapid development of large language models (LLM). Many are…

计算与语言 · 计算机科学 2025-02-04 Haritz Puerto , Martin Gubri , Sangdoo Yun , Seong Joon Oh

Given a trained model and a data sample, membership-inference (MI) attacks predict whether the sample was in the model's training set. A common countermeasure against MI attacks is to utilize differential privacy (DP) during model training…

密码学与安全 · 计算机科学 2022-04-14 Saeed Mahloujifar , Alexandre Sablayrolles , Graham Cormode , Somesh Jha

A Membership Inference Attack (MIA) assesses how much a trained machine learning model reveals about its training data by determining whether specific query instances were included in the dataset. We classify existing MIAs into adaptive or…

密码学与安全 · 计算机科学 2025-09-09 Yuntao Du , Jiacheng Li , Yuetian Chen , Kaiyuan Zhang , Zhizhen Yuan , Hanshen Xiao , Bruno Ribeiro , Ninghui Li

Retrieval-augmented generation (RAG) is a common technique for grounding language model outputs in domain-specific information. However, RAG is often challenged by reasoning-intensive question-answering (QA), since common retrieval methods…

计算与语言 · 计算机科学 2026-01-27 Saadat Hasan Khan , Spencer Hong , Jingyu Wu , Kevin Lybarger , Youbing Yin , Erin Babinsky , Daben Liu

Membership inference attacks aim to detect if a particular data point was used in training a model. We design a novel statistical test to perform robust membership inference attacks (RMIA) with low computational overhead. We achieve this by…

机器学习 · 统计学 2024-06-13 Sajjad Zarifzadeh , Philippe Liu , Reza Shokri

Membership Inference attacks (MIAs) aim to predict whether a data sample was present in the training data of a machine learning model or not, and are widely used for assessing the privacy risks of language models. Most existing attacks rely…

Traditional machine learning (ML) raises serious privacy concerns, while federated learning (FL) mitigates the risk of data leakage by keeping data on local devices. However, the training process of FL can still leak sensitive information,…

机器学习 · 计算机科学 2025-05-13 Heqing Ren , Chao Feng , Alberto Huertas , Burkhard Stiller

The widespread adoption of Retrieval-Augmented Generation (RAG) systems in real-world applications has heightened concerns about the confidentiality and integrity of their proprietary knowledge bases. These knowledge bases, which play a…

密码学与安全 · 计算机科学 2025-03-21 Pengcheng Zhou , Yinglun Feng , Zhongliang Yang

Large Language Models (LLMs) are constrained by outdated information and a tendency to generate incorrect data, commonly referred to as "hallucinations." Retrieval-Augmented Generation (RAG) addresses these limitations by combining the…

密码学与安全 · 计算机科学 2024-06-07 Jiaqi Xue , Mengxin Zheng , Yebowen Hu , Fei Liu , Xun Chen , Qian Lou

Retrieval-Augmented Generation (RAG) enhances large language models (LLMs) by retrieving external data to mitigate hallucinations and outdated knowledge issues. Benefiting from the strong ability in facilitating diverse data sources and…

密码学与安全 · 计算机科学 2025-07-15 Tianzhe Zhao , Jiaoyan Chen , Yanchi Ru , Haiping Zhu , Nan Hu , Jun Liu , Qika Lin

We propose Fast-MIA (https://github.com/Nikkei/fast-mia), a Python library for efficiently evaluating membership inference attacks (MIA) against large language models (LLMs). MIA has emerged as a crucial technique for auditing privacy risks…

密码学与安全 · 计算机科学 2026-05-12 Hiromu Takahashi , Shotaro Ishihara

Differentially private diffusion models (DPDMs) harness the remarkable generative capabilities of diffusion models while enforcing differential privacy (DP) for sensitive data. However, existing DPDM training approaches often suffer from…

密码学与安全 · 计算机科学 2025-02-19 Tanqiu Jiang , Changjiang Li , Fenglong Ma , Ting Wang

Membership inference attacks (MIA) aim to infer whether a particular data point is part of the training dataset of a model. In this paper, we propose a new task in the context of LLM privacy: entity-level discovery of membership risk…

机器学习 · 计算机科学 2025-11-04 Ali Satvaty , Suzan Verberne , Fatih Turkmen

Federated Learning (FL) is a promising approach for multiparty collaboration as a privacy-preserving technique in hardware assurance, but its security against adversaries with domain-specific knowledge is underexplored. This paper…

Document Visual Question Answering (DocVQA) has introduced a new paradigm for end-to-end document understanding, and quickly became one of the standard benchmarks for multimodal LLMs. Automating document processing workflows, driven by…

机器学习 · 计算机科学 2025-02-07 Khanh Nguyen , Raouf Kerkouche , Mario Fritz , Dimosthenis Karatzas

Image AutoRegressive generation has emerged as a new powerful paradigm with image autoregressive models (IARs) matching state-of-the-art diffusion models (DMs) in image quality (FID: 1.48 vs. 1.58) while allowing for a higher generation…

计算机视觉与模式识别 · 计算机科学 2026-04-10 Antoni Kowalczuk , Jan Dubiński , Franziska Boenisch , Adam Dziedzic

Machine learning models can leak private information about their training data. The standard methods to measure this privacy risk, based on membership inference attacks (MIAs), only check if a given data point \textit{exactly} matches a…

机器学习 · 计算机科学 2025-09-11 Jiashu Tao , Reza Shokri

OpenLVLM-MIA is a new benchmark that highlights fundamental challenges in evaluating membership inference attacks (MIA) against large vision-language models (LVLMs). While prior work has reported high attack success rates, our analysis…

计算机视觉与模式识别 · 计算机科学 2025-12-03 Ryoto Miyamoto , Xin Fan , Fuyuko Kido , Tsuneo Matsumoto , Hayato Yamana

Membership inference attacks (MIAs) test whether a target data record belongs to a system's private data, and have become a standard tool to measure privacy leakage in machine learning systems. Prior work has primarily focused on training…

密码学与安全 · 计算机科学 2026-05-28 Kai Chen , Yan Pang , Tianhao Wang

With the growing adoption of retrieval-augmented generation (RAG) systems, various attack methods have been proposed to degrade their performance. However, most existing approaches rely on unrealistic assumptions in which external attackers…

密码学与安全 · 计算机科学 2025-10-31 Chanwoo Choi , Jinsoo Kim , Sukmin Cho , Soyeong Jeong , Buru Chang