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Retrieval-augmented generation (RAG) extends large language models (LLMs) with external knowledge, but this access path also introduces security risks that existing work often conflates with inherent LLM flaws. We frame secure RAG as…

密码学与安全 · 计算机科学 2026-05-28 Yuming Xu , Mingtao Zhang , Zhuohan Ge , Haoyang Li , Nicole Hu , Yongqi Zhang , Zhiyuan Wen , Jason Chen Zhang , Qing Li , Lei Chen

Recent advancements in large language models (LLMs) and multi-modal LLMs have been remarkable. However, these models still rely solely on their parametric knowledge, which limits their ability to generate up-to-date information and…

人工智能 · 计算机科学 2025-04-22 Zihan Ling , Zhiyao Guo , Yixuan Huang , Yi An , Shuai Xiao , Jinsong Lan , Xiaoyong Zhu , Bo Zheng

While machine-generated texts (MGTs) offer great convenience, they also pose risks such as disinformation and phishing, highlighting the need for reliable detection. Metric-based methods, which extract statistically distinguishable features…

计算与语言 · 计算机科学 2026-02-10 Chenwang Wu , Yiu-ming Cheung , Shuhai Zhang , Bo Han , Defu Lian

Retrieval-augmented generation (RAG) is a promising way to improve large language models (LLMs) for generating more factual, accurate, and up-to-date content. Existing methods either optimize prompts to guide LLMs in leveraging retrieved…

计算与语言 · 计算机科学 2024-12-12 Yutao Zhu , Zhaoheng Huang , Zhicheng Dou , Ji-Rong Wen

Retrieval Augmented Generation (RAG) is a promising technique for mitigating two key limitations of large language models (LLMs): outdated information and hallucinations. RAG system stores documents as embedding vectors in a database. Given…

信息检索 · 计算机科学 2026-02-10 Taehee Jeong , Xingzhe Zhao , Peizu Li , Markus Valvur , Weihua Zhao

The advent of Large Language Models (LLMs) has marked significant achievements in language processing and reasoning capabilities. Despite their advancements, LLMs face vulnerabilities to data poisoning attacks, where the adversary inserts…

Retrieval-Augmented Generation (RAG) enhances the factual accuracy of large language models (LLMs) by conditioning outputs on external knowledge sources. However, when retrieval involves private or sensitive data, RAG systems are…

计算与语言 · 计算机科学 2025-08-06 Haoran Wang , Xiongxiao Xu , Baixiang Huang , Kai Shu

Purpose: Large Language Models (LLMs) hold significant promise for medical applications. Retrieval Augmented Generation (RAG) emerges as a promising approach for customizing domain knowledge in LLMs. This case study presents the development…

The effectiveness of Large Language Models (LLMs) in generating accurate responses relies heavily on the quality of input provided, particularly when employing Retrieval Augmented Generation (RAG) techniques. RAG enhances LLMs by sourcing…

信息检索 · 计算机科学 2024-08-02 Spurthi Setty , Harsh Thakkar , Alyssa Lee , Eden Chung , Natan Vidra

Large language models (LLMs) inevitably exhibit hallucinations since the accuracy of generated texts cannot be secured solely by the parametric knowledge they encapsulate. Although retrieval-augmented generation (RAG) is a practicable…

计算与语言 · 计算机科学 2024-10-08 Shi-Qi Yan , Jia-Chen Gu , Yun Zhu , Zhen-Hua Ling

Retrieval-augmented generation (RAG) systems are vulnerable to attacks that inject poisoned passages into the retrieved context, even at low corruption rates. We show that existing attacks are not designed to be stealthy, allowing reliable…

密码学与安全 · 计算机科学 2026-05-25 Sarthak Choudhary , Nils Palumbo , Ashish Hooda , Krishnamurthy Dj Dvijotham , Somesh Jha

Retrieval-Augmented Generation (RAG) systems are widely used across various industries for querying closed-domain and in-house knowledge bases. However, evaluating these systems presents significant challenges due to the private nature of…

计算与语言 · 计算机科学 2024-10-24 Xinzhe Li , Ming Liu , Shang Gao

Advance Persistent Threats (APTs), adopted by most delicate attackers, are becoming increasing common and pose great threat to various enterprises and institutions. Data provenance analysis on provenance graphs has emerged as a common…

密码学与安全 · 计算机科学 2023-10-17 Zian Jia , Yun Xiong , Yuhong Nan , Yao Zhang , Jinjing Zhao , Mi Wen

The paradigm of retrieval-augmented generated (RAG) helps mitigate hallucinations of large language models (LLMs). However, RAG also introduces biases contained within the retrieved documents. These biases can be amplified in scenarios…

Retrieval-Augmented Generation (RAG) is an advanced technique designed to address the challenges of Artificial Intelligence-Generated Content (AIGC). By integrating context retrieval into content generation, RAG provides reliable and…

Retrieval-augmented generation (RAG) is a widely adopted paradigm for enhancing LLMs in medical applications by incorporating expert multimodal knowledge during generation. However, the underlying retrieval databases may naturally contain,…

密码学与安全 · 计算机科学 2026-05-12 Peiru Yang , Haoran Zheng , Tong Ju , Shiting Wang , Wanchun Ni , Jiajun Liu , Shangguang Wang , Yongfeng Huang , Tao Qi

The rapid expansion of space activities has led to an unprecedented accumulation of technical documentation, operational guidelines, and scientific literature, creating challenges for timely decision-making in space operations. Effective…

信息检索 · 计算机科学 2026-05-28 Ruben Belo , Marta Guimarães , Cláudia Soares

A common way to extend the memory of large language models (LLMs) is by retrieval augmented generation (RAG), which inserts text retrieved from a larger memory into an LLM's context window. However, the context window is typically limited…

计算与语言 · 计算机科学 2025-02-14 Marc Pickett , Jeremy Hartman , Ayan Kumar Bhowmick , Raquib-ul Alam , Aditya Vempaty

We study question answering in the domain of radio regulations, a legally sensitive and high-stakes area. We propose a telecom-specific Retrieval-Augmented Generation (RAG) pipeline and introduce, to our knowledge, the first multiple-choice…

信息检索 · 计算机科学 2025-11-14 Zakaria El Kassimi , Fares Fourati , Mohamed-Slim Alouini

Retrieval Augmented Generation (RAG) is a technique commonly used to equip models with out of distribution knowledge. This process involves collecting, indexing, retrieving, and providing information to an LLM for generating responses.…

密码学与安全 · 计算机科学 2024-08-13 Gianluca De Stefano , Lea Schönherr , Giancarlo Pellegrino