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Retrieval-Augmented Generation (RAG) has emerged as a powerful technique for enhancing the quality of responses in Question-Answering (QA) tasks. However, existing approaches often struggle with retrieving contextually relevant information,…

Retrieval-Augmented Generation (RAG) effectively grounds Large Language Models (LLMs) with external knowledge and is widely applied to Web-related tasks. However, its scalability is hindered by excessive context length and redundant…

计算与语言 · 计算机科学 2026-03-24 Yunhao Liu , Zian Jia , Xinyu Gao , Kanjun Xu , Yun Xiong

Leveraging both labeled (input-output associations) and unlabeled data (wider contextual grounding) may provide complementary benefits in retrieval augmented generation (RAG). However, effectively combining evidence from these heterogeneous…

信息检索 · 计算机科学 2025-09-04 Payel Santra , Madhusudan Ghosh , Debasis Ganguly , Partha Basuchowdhuri , Sudip Kumar Naskar

The rapid development of large language models has led to the widespread adoption of Retrieval-Augmented Generation (RAG), which integrates external knowledge to alleviate knowledge bottlenecks and mitigate hallucinations. However, the…

计算与语言 · 计算机科学 2024-10-10 Ruotong Pan , Boxi Cao , Hongyu Lin , Xianpei Han , Jia Zheng , Sirui Wang , Xunliang Cai , Le Sun

Retrieval Augmented Generation (RAG) systems often struggle with domain-specific knowledge due to performance deterioration of pre-trained embeddings and prohibitive computational costs of large language model (LLM)-based retrievers. While…

信息检索 · 计算机科学 2025-09-15 Yao Zhao , Yantian Ding , Zhiyue Zhang , Dapeng Yao , Yanxun Xu

Retrieval-augmented Generation (RAG) relies on effective retrieval capabilities, yet traditional sparse and dense retrievers inherently struggle with multi-hop retrieval scenarios. In this paper, we introduce GeAR, a system that advances…

Retrieval-augmented generation (RAG) has emerged as a promising paradigm for enhancing large language models (LLMs) on multi-hop question answering (QA), which requires reasoning over evidence from multiple documents. Current multi-hop RAG…

计算与语言 · 计算机科学 2026-05-28 Yikai Zhu , Kunfeng Chen , Qihuang Zhong , Juhua Liu , Bo Du

Recent large vision-language models have achieved strong performance on short- and medium-length video understanding, yet they remain inadequate for ultra-long or even infinite video reasoning, where models must preserve coherent memory…

人工智能 · 计算机科学 2026-05-08 Peizheng Yan , Yu Zhao , Liang Xie , Juntong Qi , Mingming Wang , Erwei Yin

Current state-of-the-art approaches to cross-modal retrieval process text and visual input jointly, relying on Transformer-based architectures with cross-attention mechanisms that attend over all words and objects in an image. While…

计算机视觉与模式识别 · 计算机科学 2022-02-22 Gregor Geigle , Jonas Pfeiffer , Nils Reimers , Ivan Vulić , Iryna Gurevych

Despite the promise of Retrieval-Augmented Generation in grounding Multimodal Large Language Models with external knowledge, the transition to extensive contexts often leads to significant attention dilution and reasoning hallucinations.…

计算与语言 · 计算机科学 2026-03-10 Junming Liu , Yuqi Li , Shiping Wen , Zhigang Zeng , Tingwen Huang

Retrieval-augmented generation (RAG) ranks passages by semantic similarity to the input, implicitly assuming that semantic similarity is a reliable indication of applicability in downstream tasks. This assumption breaks down when task…

信息检索 · 计算机科学 2026-05-28 Zhixing Sun , Shenghe Xu , Tao Li

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

Most existing end-to-end Table Question Answering (Table QA) models consist of a two-stage framework with a retriever to select relevant table candidates from a corpus and a reader to locate the correct answers from table candidates. Even…

计算与语言 · 计算机科学 2022-04-01 Feifei Pan , Mustafa Canim , Michael Glass , Alfio Gliozzo , James Hendler

Retrieval-Augmented Generation (RAG) integrates external knowledge with Large Language Models (LLMs) to enhance factual correctness and mitigate hallucination. However, dense retrievers often become the bottleneck of RAG systems due to…

计算与语言 · 计算机科学 2025-10-27 Yuan Li , Qi Luo , Xiaonan Li , Bufan Li , Qinyuan Cheng , Bo Wang , Yining Zheng , Yuxin Wang , Zhangyue Yin , Xipeng Qiu

Retrieval-Augmented Generation (RAG) has emerged as a promising paradigm for improving the timeliness of knowledge updates and the factual accuracy of large language models. However, incorporating a large volume of retrieved documents…

计算与语言 · 计算机科学 2026-05-29 Ziqiang Cui , Yunpeng Weng , Xing Tang , Peiyang Liu , Shiwei Li , Bowei He , Jiamin Chen , Yansen Zhang , Xiuqiang He , Chen Ma

Advances in Large Language Models revolutionized medical education by enabling scalable and efficient learning solutions. This paper presents a pipeline employing Retrieval-Augmented Generation (RAG) system to prepare comments generation…

计算与语言 · 计算机科学 2025-03-05 Jeremi I. Kaczmarek , Jakub Pokrywka , Krzysztof Biedalak , Grzegorz Kurzyp , Łukasz Grzybowski

Large language models (LLMs) often need to incorporate external knowledge to solve theme-specific problems. Retrieval-augmented generation (RAG) has shown its high promise, empowering LLMs to generate more qualified responses with retrieved…

机器学习 · 计算机科学 2025-08-05 Jimeng Shi , Sizhe Zhou , Bowen Jin , Wei Hu , Runchu Tian , Shaowen Wang , Giri Narasimhan , Jiawei Han

Retrieval-Augmented Generation (RAG) has emerged as a powerful approach for enhancing large language models' question-answering capabilities through the integration of external knowledge. However, when adapting RAG systems to specialized…

计算与语言 · 计算机科学 2026-01-19 Xin Sun , Zhongqi Chen , Qiang Liu , Shu Wu , Bowen Song , Weiqiang Wang , Zilei Wang , Liang Wang

Although Large Language Models (LLMs) demonstrate significant capabilities, their reliance on parametric knowledge often leads to inaccuracies. Retrieval Augmented Generation (RAG) mitigates this by incorporating external knowledge, but…

人工智能 · 计算机科学 2025-11-04 Hailong Yin , Bin Zhu , Jingjing Chen , Chong-Wah Ngo

Document retrieval techniques are essential for developing large-scale information systems. The common approach involves using a bi-encoder to compute the semantic similarity between a query and documents. However, the scalar similarity…

信息检索 · 计算机科学 2025-06-02 Haoyu Liu , Shaohan Huang , Jianfeng Liu , Yuefeng Zhan , Hao Sun , Weiwei Deng , Feng Sun , Furu Wei , Qi Zhang
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