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Retrieval-Augmented Generation (RAG) utilizes external knowledge to augment Large Language Models' (LLMs) reliability. For flexibility, agentic RAG employs autonomous, multi-round retrieval and reasoning to resolve queries. Although recent…

Information Retrieval · Computer Science 2025-11-10 Chao Zhang , Yuhao Wang , Derong Xu , Haoxin Zhang , Yuanjie Lyu , Yuhao Chen , Shuochen Liu , Tong Xu , Xiangyu Zhao , Yan Gao , Yao Hu , Enhong Chen

\Ac{RAG} has emerged as a crucial technique for enhancing large models with real-time and domain-specific knowledge. While numerous improvements and open-source tools have been proposed to refine the \ac{RAG} framework for accuracy,…

Information Retrieval · Computer Science 2025-02-20 Yixing Fan , Qiang Yan , Wenshan Wang , Jiafeng Guo , Ruqing Zhang , Xueqi Cheng

In knowledge-intensive tasks such as open-domain question answering (OpenQA), large language models (LLMs) often struggle to generate factual answers, relying solely on their internal (parametric) knowledge. To address this limitation,…

Computation and Language · Computer Science 2025-04-29 Jinming Nian , Zhiyuan Peng , Qifan Wang , Yi Fang

Large Language Models (LLMs) excel in various language tasks but they often generate incorrect information, a phenomenon known as "hallucinations". Retrieval-Augmented Generation (RAG) aims to mitigate this by using document retrieval for…

Information Retrieval · Computer Science 2024-07-18 Hamin Koo , Minseon Kim , Sung Ju Hwang

Retrieval-augmented generation have become central in natural language processing due to their efficacy in generating factual content. While traditional methods employ single-time retrieval, more recent approaches have shifted towards…

Computation and Language · Computer Science 2024-02-20 Yujia Zhou , Zheng Liu , Jiajie Jin , Jian-Yun Nie , Zhicheng Dou

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

Financial documents--such as 10-Ks, 10-Qs, and investor presentations--span hundreds of pages and combine diverse modalities, including dense narrative text, structured tables, and complex figures. Answering questions over such content…

Computation and Language · Computer Science 2026-04-13 Chinmay Gondhalekar , Urjitkumar Patel , Fang-Chun Yeh

Existing retrieval methods in Large Language Models show degradation in accuracy when handling temporally distributed conversations, primarily due to their reliance on simple similarity-based retrieval. Unlike existing memory retrieval…

Computation and Language · Computer Science 2025-07-28 Yuki Hou , Haruki Tamoto , Qinghua Zhao , Homei Miyashita

Large Vision-Language Models (LVLMs) have made remarkable strides in multimodal tasks such as visual question answering, visual grounding, and complex reasoning. However, they remain limited by static training data, susceptibility to…

Artificial Intelligence · Computer Science 2025-08-27 Chan-Wei Hu , Yueqi Wang , Shuo Xing , Chia-Ju Chen , Suofei Feng , Ryan Rossi , Zhengzhong Tu

Retrieval-Augmented Generation (RAG) enables large language models (LLMs) to access broader knowledge sources, yet factual inconsistencies persist due to noise in retrieved documents-even with advanced retrieval methods. We demonstrate that…

Computation and Language · Computer Science 2025-06-04 Yongjian Li , HaoCheng Chu , Yukun Yan , Zhenghao Liu , Shi Yu , Zheni Zeng , Ruobing Wang , Sen Song , Zhiyuan Liu , Maosong Sun

Retrieval-Augmented Generation (RAG) struggles on long, structured financial filings where relevant evidence is sparse and cross-referenced. This paper presents a systematic investigation of advanced metadata-driven Retrieval-Augmented…

Information Retrieval · Computer Science 2025-10-29 Michail Dadopoulos , Anestis Ladas , Stratos Moschidis , Ioannis Negkakis

Large Language Models (LLMs) have shown remarkable capabilities across diverse tasks, yet they face inherent limitations such as constrained parametric knowledge and high retraining costs. Retrieval-Augmented Generation (RAG) augments the…

Information Retrieval · Computer Science 2025-08-26 Leqian Li , Dianxi Shi , Jialu Zhou , Xinyu Wei , Mingyue Yang , Songchang Jin , Shaowu Yang

Graph-based Retrieval-Augmented Generation (RAG) has proven effective in integrating external knowledge into large language models (LLMs), improving their factual accuracy, adaptability, interpretability, and trustworthiness. A number of…

Information Retrieval · Computer Science 2026-04-28 Yingli Zhou , Yaodong Su , Youran Sun , Shu Wang , Taotao Wang , Runyuan He , Yongwei Zhang , Sicong Liang , Xilin Liu , Yuchi Ma , Yixiang Fang

Large Language Models (LLMs) have achieved impressive progress in natural language processing, but their limited ability to retain long-term context constrains performance on document-level or multi-turn tasks. Retrieval-Augmented…

Computation and Language · Computer Science 2025-05-20 Zhangyu Wang , Siyuan Gao , Rong Zhou , Hao Wang , Li Ning

Retrieval-Augmented Generation (RAG) has demonstrated significant effectiveness in enhancing large language models (LLMs) for complex multi-hop question answering (QA). For multi-hop QA tasks, current iterative approaches predominantly rely…

Computation and Language · Computer Science 2026-01-19 Yuling Shi , Maolin Sun , Zijun Liu , Mo Yang , Yixiong Fang , Tianran Sun , Xiaodong Gu

This work presents a Biomedical Literature Question Answering (Q&A) system based on a Retrieval-Augmented Generation (RAG) architecture, designed to improve access to accurate, evidence-based medical information. Addressing the shortcomings…

Computation and Language · Computer Science 2025-09-09 Mansi Garg , Lee-Chi Wang , Bhavesh Ghanchi , Sanjana Dumpala , Shreyash Kakde , Yen Chih Chen

Automatic evaluation of retrieval augmented generation (RAG) systems relies on fine-grained dimensions like faithfulness and relevance, as judged by expert human annotators. Meta-evaluation benchmarks support the development of automatic…

Computation and Language · Computer Science 2025-07-22 María Andrea Cruz Blandón , Jayasimha Talur , Bruno Charron , Dong Liu , Saab Mansour , Marcello Federico

Large language models (LLMs) exhibit remarkable capabilities but often produce inaccurate responses, as they rely solely on their embedded knowledge. Retrieval-Augmented Generation (RAG) enhances LLMs by incorporating an external…

Computation and Language · Computer Science 2024-09-25 Nitin Aravind Birur , Tanay Baswa , Divyanshu Kumar , Jatan Loya , Sahil Agarwal , Prashanth Harshangi

To mitigate the hallucination and knowledge deficiency in large language models (LLMs), Knowledge Graph (KG)-based Retrieval-Augmented Generation (RAG) has shown promising potential by utilizing KGs as external resource to enhance LLMs…

Computation and Language · Computer Science 2025-01-23 Zengyi Gao , Yukun Cao , Hairu Wang , Ao Ke , Yuan Feng , Xike Xie , S Kevin Zhou

This paper presents the development and evaluation of a Retrieval-Augmented Generation (RAG) system for querying the United Kingdom's National Institute for Health and Care Excellence (NICE) clinical guidelines using Large Language Models…