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The growing demand for efficient and lightweight Retrieval-Augmented Generation (RAG) systems has highlighted significant challenges when deploying Small Language Models (SLMs) in existing RAG frameworks. Current approaches face severe…

Artificial Intelligence · Computer Science 2025-01-28 Tianyu Fan , Jingyuan Wang , Xubin Ren , Chao Huang

Retrieval-Augmented Generation (RAG) is gaining recognition as one of the key technological axes for next generation information retrieval, owing to its ability to mitigate the hallucination phenomenon in Large Language Models (LLMs)and…

Information Retrieval · Computer Science 2025-12-02 Hyunseok Ryu , Wonjune Shin , Hyun Park

Retrieval-Augmented Generation (RAG) has emerged as a powerful approach for grounding Large Language Model (LLM)-based chatbot responses on external knowledge. However, existing RAG studies typically assume well-structured textual sources…

Computation and Language · Computer Science 2026-02-13 Sungmoon Kim , Hyuna Jeon , Dahye Kim , Mingyu Kim , Dong-Kyu Chae , Jiwoong Kim

As artificial intelligence permeates judicial forensics, ensuring the veracity and traceability of legal question answering (QA) has become critical. Conventional large language models (LLMs) are prone to hallucination, risking misleading…

Artificial Intelligence · Computer Science 2025-11-18 Yueqing Xi , Yifan Bai , Huasen Luo , Weiliang Wen , Hui Liu , Haoliang Li

Large language models (LLMs) have demonstrated remarkable capabilities in a wide range of tasks, yet their application to specialized domains remains challenging due to the need for deep expertise. Retrieval-Augmented generation (RAG) has…

Computation and Language · Computer Science 2025-09-30 Qinggang Zhang , Shengyuan Chen , Yuanchen Bei , Zheng Yuan , Huachi Zhou , Zijin Hong , Hao Chen , Yilin Xiao , Chuang Zhou , Junnan Dong , Yi Chang , Xiao Huang

Retrieval-augmented generation (RAG) is key to enhancing large language models (LLMs) to systematically access richer factual knowledge. Yet, using RAG brings intrinsic challenges, as LLMs must deal with potentially conflicting knowledge,…

Computation and Language · Computer Science 2025-04-08 Leonardo Ranaldi , Federico Ranaldi , Fabio Massimo Zanzotto , Barry Haddow , Alexandra Birch

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…

Computation and Language · Computer Science 2024-12-02 Tian Yu , Shaolei Zhang , Yang Feng

Multimodal large language models (MLLMs) often fail in fine-grained visual question answering, producing hallucinations about object identities, positions, and relations because textual queries are not explicitly anchored to visual…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Suyang Xi , Chenxi Yang , Hong Ding , Yiqing Ni , Catherine C. Liu , Yunhao Liu , Chengqi Zhang

We present HySemRAG, a framework that combines Extract, Transform, Load (ETL) pipelines with Retrieval-Augmented Generation (RAG) to automate large-scale literature synthesis and identify methodological research gaps. The system addresses…

Information Retrieval · Computer Science 2025-08-11 Alejandro Godinez

Recent advances in Retrieval-Augmented Generation (RAG) have significantly improved response accuracy and relevance by incorporating external knowledge into Large Language Models (LLMs). However, existing RAG methods primarily focus on…

Machine Learning · Computer Science 2025-04-22 Qinhan Yu , Zhiyou Xiao , Binghui Li , Zhengren Wang , Chong Chen , Wentao Zhang

With the increasing demand for step-wise, cross-modal, and knowledge-grounded reasoning, multimodal large language models (MLLMs) are evolving beyond the traditional fixed retrieve-then-generate paradigm toward more sophisticated agentic…

Artificial Intelligence · Computer Science 2026-03-03 Xuying Ning , Dongqi Fu , Tianxin Wei , Mengting Ai , Jiaru Zou , Ting-Wei Li , Hanghang Tong , Yada Zhu , Hendrik Hamann , Jingrui He

Retrieval-Augmented Generation (RAG) is widely used to mitigate hallucinations of Large Language Models (LLMs) by leveraging external knowledge. While effective for simple queries, traditional RAG systems struggle with large-scale,…

Computation and Language · Computer Science 2025-11-11 Luyao Zhuang , Shengyuan Chen , Yilin Xiao , Huachi Zhou , Yujing Zhang , Hao Chen , Qinggang Zhang , Xiao Huang

Recently, Retrieval-Augmented Generation (RAG) has achieved remarkable success in addressing the challenges of Large Language Models (LLMs) without necessitating retraining. By referencing an external knowledge base, RAG refines LLM…

Artificial Intelligence · Computer Science 2024-09-11 Boci Peng , Yun Zhu , Yongchao Liu , Xiaohe Bo , Haizhou Shi , Chuntao Hong , Yan Zhang , Siliang Tang

Organizations increasingly rely on proprietary enterprise data, including HR records, structured reports, and tabular documents, for critical decision-making. While Large Language Models (LLMs) have strong generative capabilities, they are…

Computation and Language · Computer Science 2025-07-17 Chandana Cheerla

Graph-based retrieval-augmented generation (RAG) enriches large language models (LLMs) with external knowledge for long-context understanding and multi-hop reasoning, but existing methods face a granularity dilemma: fine-grained…

Computation and Language · Computer Science 2025-09-26 Yaxiong Wu , Jianyuan Bo , Yongyue Zhang , Sheng Liang , Yong Liu

Retrieval-Augmented Generation (RAG) merges retrieval methods with deep learning advancements to address the static limitations of large language models (LLMs) by enabling the dynamic integration of up-to-date external information. This…

Information Retrieval · Computer Science 2026-05-19 Yizheng Huang , Jimmy Huang

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

Retrieval-Augmented Generation (RAG) systems often struggle with imperfect retrieval, as traditional retrievers focus on lexical or semantic similarity rather than logical relevance. To address this, we propose \textbf{HopRAG}, a novel RAG…

Information Retrieval · Computer Science 2025-05-27 Hao Liu , Zhengren Wang , Xi Chen , Zhiyu Li , Feiyu Xiong , Qinhan Yu , Wentao Zhang

Existing multimodal Retrieval-Augmented Generation (RAG) methods for visually rich documents (VRD) are often biased towards retrieving salient knowledge(e.g., prominent text and visual elements), while largely neglecting the critical…

Information Retrieval · Computer Science 2025-11-26 Anyang Tong , Xiang Niu , ZhiPing Liu , Chang Tian , Yanyan Wei , Zenglin Shi , Meng Wang

Multi-step retrieval-augmented generation (RAG) has become a widely adopted strategy for enhancing large language models (LLMs) on tasks that demand global comprehension and intensive reasoning. Although many RAG systems incorporate a…

Computation and Language · Computer Science 2026-05-28 Chulun Zhou , Chunkang Zhang , Guoxin Yu , Fandong Meng , Jie Zhou , Wai Lam , Mo Yu