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Large language models (LLMs) are increasingly integrated into real-world personalized applications through retrieval-augmented generation (RAG) mechanisms to supplement their responses with domain-specific knowledge. However, the valuable…

密码学与安全 · 计算机科学 2025-05-26 Junfeng Guo , Yiming Li , Ruibo Chen , Yihan Wu , Chenxi Liu , Yanshuo Chen , Heng Huang

Large language models (LLMs) are very costly and inefficient to update with new information. To address this limitation, retrieval-augmented generation (RAG) has been proposed as a solution that dynamically incorporates external knowledge…

计算与语言 · 计算机科学 2025-07-10 Sezen Perçin , Xin Su , Qutub Sha Syed , Phillip Howard , Aleksei Kuvshinov , Leo Schwinn , Kay-Ulrich Scholl

Retrieval-Augmented Generation (RAG) enriches LLMs by dynamically retrieving external knowledge, reducing hallucinations and satisfying real-time information needs. While existing research mainly targets RAG's performance and efficiency,…

信息检索 · 计算机科学 2025-12-29 Zhuo Chen , Yuyang Gong , Jiawei Liu , Miaokun Chen , Haotan Liu , Qikai Cheng , Fan Zhang , Wei Lu , Xiaozhong Liu

Retrieval-Augmented Generation (RAG) mitigates LLM hallucinations but introduces a critical vulnerability: corpus integrity. We present SilentRetrieval, a two-stage data poisoning attack that hijacks RAG systems through adversarially…

密码学与安全 · 计算机科学 2026-05-28 Jiachen Qian

We explore adversarial attacks against retrieval-augmented generation (RAG) systems to identify their vulnerabilities. We focus on generating human-imperceptible adversarial examples and introduce a novel imperceptible retrieve-to-generate…

信息检索 · 计算机科学 2025-05-29 Hongru Song , Yu-an Liu , Ruqing Zhang , Jiafeng Guo , Jianming Lv , Maarten de Rijke , Xueqi Cheng

Retrieval-Augmented Generation (RAG) systems enhance LLMs with external knowledge but introduce a critical attack surface: corpus poisoning. While recent studies have demonstrated the potential of such attacks, they typically rely on…

密码学与安全 · 计算机科学 2026-01-21 Tailun Chen , Yu He , Yan Wang , Shuo Shao , Haolun Zheng , Zhihao Liu , Jinfeng Li , Zhizhen Qin , Yuefeng Chen , Zhixuan Chu , Zhan Qin , Kui Ren

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Augmented Generation (RAG) is a promising technique for mitigating two key limitations of large language models (LLMs): outdated information and hallucinations.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

Retrieval-augmented generation (RAG) is a key means to effectively enhance large language models (LLMs) in many knowledge-based tasks. However, existing RAG methods struggle with knowledge-intensive reasoning tasks, because useful…

计算与语言 · 计算机科学 2024-10-28 Zhuoqun Li , Xuanang Chen , Haiyang Yu , Hongyu Lin , Yaojie Lu , Qiaoyu Tang , Fei Huang , Xianpei Han , Le Sun , Yongbin Li

Retrieval-Augmented Generation (RAG) is a technique that enhances the capabilities of large language models (LLMs) by incorporating external knowledge sources. This method addresses common LLM limitations, including outdated information and…

计算与语言 · 计算机科学 2024-07-16 Yuanjie Lyu , Zhiyu Li , Simin Niu , Feiyu Xiong , Bo Tang , Wenjin Wang , Hao Wu , Huanyong Liu , Tong Xu , Enhong Chen

Retrieval-augmented generation (RAG) utilizes retrieved texts to enhance large language models (LLMs). Studies show that while RAG provides valuable external information (benefit), it may also mislead LLMs (detriment) with noisy or…

计算与语言 · 计算机科学 2025-03-03 Shicheng Xu , Liang Pang , Huawei Shen , Xueqi Cheng

Retrieval-augmented generation (RAG) has shown promising potential in knowledge intensive question answering (QA). However, existing approaches only consider the query itself, neither specifying the retrieval preferences for the retrievers…

信息检索 · 计算机科学 2025-02-18 Zhongwu Chen , Chengjin Xu , Dingmin Wang , Zhen Huang , Yong Dou , Xuhui Jiang , Jian Guo

Retrieval Augmented Generation (RAG) is a framework for incorporating external knowledge, usually in the form of a set of documents retrieved from a collection, as a part of a prompt to a large language model (LLM) to potentially improve…

信息检索 · 计算机科学 2025-02-24 Fangzheng Tian , Debasis Ganguly , Craig Macdonald

Retrieval-Augmented Generation (RAG) effectively enhances Large Language Models (LLMs) by incorporating retrieved external knowledge into the generation process. Reasoning models improve LLM performance in multi-hop QA tasks, which require…

计算与语言 · 计算机科学 2026-01-21 Guo Chen , Junjie Huang , Huaijin Xie , Fei Sun , Tao Jia

Large Language Models~(LLMs) are prone to hallucinations, and Retrieval-Augmented Generation (RAG) helps mitigate this, but at a high computational cost while risking misinformation. Adaptive retrieval aims to retrieve only when necessary,…

Retrieval-augmented generation (RAG) is increasingly recognized as an effective approach to mitigating the hallucination of large language models (LLMs) through the integration of external knowledge. While numerous efforts, most studies…

计算与语言 · 计算机科学 2025-10-10 Shuo Yu , Mingyue Cheng , Qi Liu , Daoyu Wang , Jiqian Yang , Jie Ouyang , Yucong Luo , Chenyi Lei , Enhong Chen

Graph-based Retrieval-Augmented Generation (RAG) methods have significantly enhanced the performance of large language models (LLMs) in domain-specific tasks. However, existing RAG methods do not adequately utilize the naturally inherent…

计算与语言 · 计算机科学 2025-09-29 Haoyu Huang , Yongfeng Huang , Junjie Yang , Zhenyu Pan , Yongqiang Chen , Kaili Ma , Hongzhi Chen , James Cheng

Iterative retrieval refers to the process in which the model continuously queries the retriever during generation to enhance the relevance of the retrieved knowledge, thereby improving the performance of Retrieval-Augmented Generation…

计算与语言 · 计算机科学 2024-12-02 Tian Yu , Shaolei Zhang , Yang Feng

Retrieval-Augmented Generation (RAG) has significantly improved the performance of large language models (LLMs) on knowledge-intensive tasks in recent years. However, since retrieval systems may return irrelevant content, incorporating such…

计算与语言 · 计算机科学 2025-09-26 Tomoaki Isoda

Retrieval-Augmented Generation (RAG) has become a widely adopted approach to enhance Large Language Models (LLMs) by incorporating external knowledge and reducing hallucinations. However, noisy or irrelevant documents are often introduced…

计算与语言 · 计算机科学 2026-01-07 Jingyu Liu , Jiaen Lin , Yong Liu

Retrieval-augmented generation (RAG) is a framework enabling large language models (LLMs) to enhance their accuracy and reduce hallucinations by integrating external knowledge bases. In this paper, we introduce a hybrid RAG system enhanced…

计算与语言 · 计算机科学 2024-09-04 Ye Yuan , Chengwu Liu , Jingyang Yuan , Gongbo Sun , Siqi Li , Ming Zhang