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Retrieval-augmented generation (RAG) improves the response quality of large language models (LLMs) by retrieving knowledge from external databases. Typical RAG approaches split the text database into chunks, organizing them in a flat…

计算与语言 · 计算机科学 2025-11-18 Boyu Chen , Zirui Guo , Zidan Yang , Yuluo Chen , Junze Chen , Zhenghao Liu , Chuan Shi , Cheng Yang

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…

计算与语言 · 计算机科学 2025-09-26 Yaxiong Wu , Jianyuan Bo , Yongyue Zhang , Sheng Liang , Yong Liu

Retrieval-augmented generation (RAG) has emerged as a promising technology for addressing hallucination issues in the responses generated by large language models (LLMs). Existing studies on RAG primarily focus on applying semantic-based…

计算与语言 · 计算机科学 2025-02-12 Xiangrong Zhu , Yuexiang Xie , Yi Liu , Yaliang Li , Wei Hu

Retrieval-augmented generation (RAG) methods can enhance the performance of LLMs by incorporating retrieved knowledge chunks into the generation process. In general, the retrieval and generation steps usually have different requirements for…

With the rapid development of large-scale language models, Retrieval-Augmented Generation (RAG) has been widely adopted. However, existing RAG paradigms are inevitably influenced by erroneous retrieval information, thereby reducing the…

信息检索 · 计算机科学 2024-05-30 Ridong Wu , Shuhong Chen , Xiangbiao Su , Yuankai Zhu , Yifei Liao , Jianming Wu

Retrieval-augmented generation (RAG) effectively addresses issues of static knowledge and hallucination in large language models. Existing studies mostly focus on question scenarios with clear user intents and concise answers. However, it…

计算与语言 · 计算机科学 2025-02-18 Shuting Wang , Xin Yu , Mang Wang , Weipeng Chen , Yutao Zhu , Zhicheng Dou

Large language models with retrieval-augmented generation encounter a pivotal challenge in intricate retrieval tasks, e.g., multi-hop question answering, which requires the model to navigate across multiple documents and generate…

信息检索 · 计算机科学 2025-05-06 Weijie Chen , Ting Bai , Jinbo Su , Jian Luan , Wei Liu , Chuan Shi

Retrieval-Augmented Generation (RAG) enhances the response capabilities of language models by integrating external knowledge sources. However, document chunking as an important part of RAG system often lacks effective evaluation tools. This…

计算与语言 · 计算机科学 2025-10-10 Wensheng Lu , Keyu Chen , Ruizhi Qiao , Xing Sun

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…

信息检索 · 计算机科学 2025-12-02 Hyunseok Ryu , Wonjune Shin , Hyun Park

Document retrieval systems have experienced a revitalized interest with the advent of retrieval-augmented generation (RAG). RAG architecture offers a lower hallucination rate than LLM-only applications. However, the accuracy of the…

信息检索 · 计算机科学 2024-08-21 Kavsar Huseynova , Jafar Isbarov

Retrieval-Augmented Generation (RAG) enhances language models by retrieving and incorporating relevant external knowledge. However, traditional retrieve-and-generate processes may not be optimized for real-world scenarios, where queries…

计算与语言 · 计算机科学 2025-02-28 Ingeol Baek , Hwan Chang , Byeongjeong Kim , Jimin Lee , Hwanhee Lee

Retrieval-Augmented Generation (RAG) improves reliability of large language models by incorporating external knowledge, but the retrieval process can introduce bias that propagates to generated outputs. This issue is particularly…

数据库 · 计算机科学 2026-05-18 Yingqi Zhao , Vasilis Efthymiou , Jyrki Nummenmaa , Kostas Stefanidis

Retrieval-augmented generation (RAG) is a common way to ground language models in external documents and up-to-date information. Classical retrieval systems relied on lexical methods such as BM25, which rank documents by term overlap with…

计算与语言 · 计算机科学 2026-03-05 Martin Asenov , Kenza Benkirane , Dan Goldwater , Aneiss Ghodsi

Retrieval-Augmented Generation (RAG) has gained significant attention in recent years for its potential to enhance natural language understanding and generation by combining large-scale retrieval systems with generative models. RAG…

计算与语言 · 计算机科学 2025-03-18 Mingyue Cheng , Yucong Luo , Jie Ouyang , Qi Liu , Huijie Liu , Li Li , Shuo Yu , Bohou Zhang , Jiawei Cao , Jie Ma , Daoyu Wang , Enhong Chen

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

In the modern era of rapidly increasing data volumes, accurately retrieving and recommending relevant documents has become crucial in enhancing the reliability of Question Answering (QA) systems. Recently, Retrieval Augmented Generation…

信息检索 · 计算机科学 2024-09-24 Thiem Nguyen Ba , Vinh Doan The , Tung Pham Quang , Toan Tran Van

Retrieval-Augmented Generation (RAG) is an effective approach to enhance the factual accuracy of large language models (LLMs) by retrieving information from external databases, which are typically composed of diverse sources, to supplement…

机器学习 · 计算机科学 2025-10-15 Jeongyeon Hwang , Junyoung Park , Hyejin Park , Dongwoo Kim , Sangdon Park , Jungseul Ok

We present TopClustRAG, a retrieval-augmented generation (RAG) system developed for the LiveRAG Challenge, which evaluates end-to-end question answering over large-scale web corpora. Our system employs a hybrid retrieval strategy combining…

计算与语言 · 计算机科学 2025-06-19 Juli Bakagianni , John Pavlopoulos , Aristidis Likas

Open-domain long-form text generation requires generating coherent, comprehensive responses that address complex queries with both breadth and depth. This task is challenging due to the need to accurately capture diverse facets of input…

信息检索 · 计算机科学 2024-10-22 Kashob Kumar Roy , Pritom Saha Akash , Kevin Chen-Chuan Chang , Lucian Popa

Large language models (LLMs) achieve optimal utility when their responses are grounded in external knowledge sources. However, real-world documents, such as annual reports, scientific papers, and clinical guidelines, frequently combine…

信息检索 · 计算机科学 2025-12-17 Chi Zhang , Qiyang Chen , Mengqi Zhang