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The Retrieval-Augmented Generation (RAG) framework introduces a retrieval module to dynamically inject retrieved information into the input context of large language models (LLMs), and has demonstrated significant success in various NLP…

Information Retrieval · Computer Science 2025-05-27 Yi Jiang , Sendong Zhao , Jianbo Li , Haochun Wang , Bing Qin

Given a query and a document corpus, the information retrieval (IR) task is to output a ranked list of relevant documents. Combining large language models (LLMs) with embedding-based retrieval models, recent work shows promising results on…

Computation and Language · Computer Science 2023-11-01 Daman Arora , Anush Kini , Sayak Ray Chowdhury , Nagarajan Natarajan , Gaurav Sinha , Amit Sharma

Retrieval Augmented Generation (RAG) enhances language model performance by incorporating external knowledge retrieved from large corpora, which makes it highly suitable for tasks such as open domain question answering. Standard RAG systems…

Information Retrieval · Computer Science 2025-12-17 Malika Iratni , Mohand Boughanem , Taoufiq Dkaki

Retrieval-Augmented Generation (RAG) has become a standard approach for improving the reliability of large language models (LLMs). Prior work demonstrates the vulnerability of RAG systems by misleading them into generating attacker-chosen…

Cryptography and Security · Computer Science 2025-08-28 Yanbo Dai , Zhenlan Ji , Zongjie Li , Kuan Li , Shuai Wang

Large language models (LLMs) have demonstrated impressive natural language processing abilities but face challenges such as hallucination and outdated knowledge. Retrieval-Augmented Generation (RAG) has emerged as a state-of-the-art…

Cryptography and Security · Computer Science 2026-01-09 Baolei Zhang , Yuxi Chen , Zhuqing Liu , Lihai Nie , Tong Li , Zheli Liu , Minghong Fang

Retrieval-Augmented Generation (RAG) has demonstrated strong effectiveness in knowledge-intensive tasks by grounding language generation in external evidence. Despite its success, many existing RAG systems are built based on a…

Computation and Language · Computer Science 2026-04-27 Lichang Song , Ting Long , Yi Chang

Safety alignment in large language models (LLMs) induces over-refusals -- where LLMs decline benign requests due to aggressive safety filters. We analyze this phenomenon in retrieval-augmented generation (RAG), where both the query intent…

Computation and Language · Computer Science 2025-10-14 Utsav Maskey , Mark Dras , Usman Naseem

Retrieval-Augmented Generation (RAG) systems commonly adopt retrieval fusion techniques such as multi-query retrieval and reciprocal rank fusion (RRF) to increase document recall, under the assumption that higher recall leads to better…

Information Retrieval · Computer Science 2026-03-03 Luigi Medrano , Arush Verma , Mukul Chhabra

Retrieval-augmented generation (RAG) enhances large language models (LLMs) by incorporating external knowledge to generate a response within a context with improved accuracy and reduced hallucinations. However, multi-modal RAG systems face…

Machine Learning · Computer Science 2025-01-09 Matin Mortaheb , Mohammad A. Amir Khojastepour , Srimat T. Chakradhar , Sennur Ulukus

Retrieval-Augmented Generation (RAG) has become the standard paradigm for grounding Large Language Model outputs in external knowledge. Lumer et al. [1] presented the first systematic evaluation comparing vector-based agentic RAG against…

Information Retrieval · Computer Science 2026-04-17 Afshan Hashmi

Retrieval-augmented generation has gained significant attention due to its ability to integrate relevant external knowledge, enhancing the accuracy and reliability of the LLMs' responses. Most of the existing methods apply a dynamic…

Computation and Language · Computer Science 2025-01-13 Liang Xiao , Wen Dai , Shuai Chen , Bin Qin , Chongyang Shi , Haopeng Jing , Tianyu Guo

Retrieval-Augmented Generation (RAG) has greatly improved large language models (LLMs) by enabling them to generate accurate, contextually grounded responses through the integration of external information. However, conventional RAG…

Computation and Language · Computer Science 2024-09-24 Jiatao Li , Xinyu Hu , Xiaojun Wan

Retrieval-Augmented Generation (RAG) depends on document ranking to provide useful evidence for generation, but conventional reranking methods mainly optimize query-document relevance rather than generation usefulness. A relevant document…

Computation and Language · Computer Science 2026-05-07 Zhipeng Song , Yizhi Zhou , Xiangyu Kong , Jiulong Jiao , Xuezhou Ye , Chunqi Gao , Xueqing Shi , Yuhang Zhou , Heng Qi

Retrieval-Augmented Generation (RAG) enhances large language models (LLMs) by integrating up-to-date external knowledge, yet real-world web environments present unique challenges. These limitations manifest as two key challenges: pervasive…

Information Retrieval · Computer Science 2026-03-24 Yuqin Dai , Shuo Yang , Guoqing Wang , Yong Deng , Zhanwei Zhang , Jun Yin , Pengyu Zeng , Zhenzhe Ying , Changhua Meng , Can Yi , Yuchen Zhou , Weiqiang Wang , Shuai Lu

As an effective method to boost the performance of Large Language Models (LLMs) on the question answering (QA) task, Retrieval-Augmented Generation (RAG), which queries highly relevant information from external complex documents, has…

Information Retrieval · Computer Science 2025-12-04 Shu Wang , Yingli Zhou , Yixiang Fang

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…

Information Retrieval · Computer Science 2025-02-24 Fangzheng Tian , Debasis Ganguly , Craig Macdonald

Retrieval-Augmented Generation (RAG) enhances large language models (LLMs) by integrating external knowledge, where the LLM's ability to generate responses based on the combination of a given query and retrieved documents is crucial.…

Computation and Language · Computer Science 2025-08-01 Zhehao Tan , Yihan Jiao , Dan Yang , Lei Liu , Jie Feng , Duolin Sun , Yue Shen , Jian Wang , Peng Wei , Jinjie Gu

Retrieval-Augmented Generation (RAG) is a framework for grounding Large Language Models (LLMs) in external, up-to-date information. However, recent advancements in context window size allow LLMs to process inputs of up to 128K tokens or…

Machine Learning · Computer Science 2026-02-26 Seongwoong Shim , Myunsoo Kim , Jae Hyeon Cho , Byung-Jun Lee

While Retrieval-Augmented Generation (RAG) has been swiftly adopted in scientific and clinical QA systems, a comprehensive evaluation benchmark in the medical domain is lacking. To address this gap, we introduce the Medical…

Computation and Language · Computer Science 2026-02-12 Liz Li , Wei Zhu

Retrieval-Augmented Generation (RAG) based on Large Language Models (LLMs) is a powerful solution to understand and query the industry's closed-source documents. However, basic RAG often struggles with complex QA tasks in legal and…

Information Retrieval · Computer Science 2025-09-08 Huifeng Lin , Gang Su , Jintao Liang , You Wu , Rui Zhao , Ziyue Li