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Retrieval-augmented generation (RAG) has emerged as a critical mechanism in contemporary NLP to support Large Language Models(LLMs) in systematically accessing richer factual context. However, the integration of RAG mechanisms brings its…

Computation and Language · Computer Science 2025-06-11 Leonardo Ranaldi , Marco Valentino , Andrè Freitas

Large Language Models (LLMs) often exhibit factual inconsistencies and logical decay in extended, multi-turn dialogues, a challenge stemming from their reliance on static, pre-trained knowledge and an inability to reason adaptively over the…

Computation and Language · Computer Science 2025-10-16 Xiang Lei , Qin Li , Min Zhang , Min Zhang

Large language models have limited context capacity, hindering reasoning over long conversations. We propose the Hierarchical Aggregate Tree memory structure to recursively aggregate relevant dialogue context through conditional tree…

Computation and Language · Computer Science 2024-06-11 Aadharsh Aadhithya A , Sachin Kumar S , Soman K. P

Large Language Models (LLMs) have demonstrated significant potential in medical Question Answering (QA), yet they remain prone to hallucinations and ungrounded reasoning, limiting their reliability in high-stakes clinical scenarios. While…

Information Retrieval · Computer Science 2026-01-09 Jessica Ryan , Alexander I. Gumilang , Robert Wiliam , Derwin Suhartono

Enterprise retrieval augmented generation (RAG) offers a highly flexible framework for combining powerful large language models (LLMs) with internal, possibly temporally changing, documents. In RAG, documents are first chunked. Relevant…

Computation and Language · Computer Science 2024-09-02 Vatsal Raina , Mark Gales

Large Language Models (LLMs)-based question answering (QA) systems play a critical role in modern AI, demonstrating strong performance across various tasks. However, LLM-generated responses often suffer from hallucinations, unfaithful…

Computation and Language · Computer Science 2026-01-29 Yuqing Zhao , Ziyao Liu , Yongsen Zheng , Kwok-Yan Lam

Large language models (LLMs) struggle with the factual error during inference due to the lack of sufficient training data and the most updated knowledge, leading to the hallucination problem. Retrieval-Augmented Generation (RAG) has gained…

Information Retrieval · Computer Science 2026-01-22 Zulun Zhu , Tiancheng Huang , Kai Wang , Junda Ye , Xinghe Chen , Siqiang Luo

Although the rise of large language models (LLMs) has introduced new opportunities for time series forecasting, existing LLM-based solutions require excessive training and exhibit limited transferability. In view of these challenges, we…

Artificial Intelligence · Computer Science 2024-12-24 Silin Yang , Dong Wang , Haoqi Zheng , Ruochun Jin

Large Language Models (LLMs) are capable of natural language understanding and generation. But they face challenges such as hallucination and outdated knowledge. Fine-tuning is one possible solution, but it is resource-intensive and must be…

Computation and Language · Computer Science 2025-07-01 Shadman Sobhan , Mohammad Ariful Haque

This paper addresses the challenge of comprehending very long contexts in Large Language Models (LLMs) by proposing a method that emulates Retrieval Augmented Generation (RAG) through specialized prompt engineering and chain-of-thought…

Computation and Language · Computer Science 2025-02-19 Joon Park , Kyohei Atarashi , Koh Takeuchi , Hisashi Kashima

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…

Machine Learning · Computer Science 2025-10-15 Jeongyeon Hwang , Junyoung Park , Hyejin Park , Dongwoo Kim , Sangdon Park , Jungseul Ok

Retrieval-Augmented Generation (RAG) is a crucial method for mitigating hallucinations in Large Language Models (LLMs) and integrating external knowledge into their responses. Existing RAG methods typically employ query rewriting to clarify…

Computation and Language · Computer Science 2025-02-26 Zhuocheng Zhang , Yang Feng , Min Zhang

Retrieval-augmented generation (RAG) is critical for reducing hallucinations and incorporating external knowledge into Large Language Models (LLMs). However, advanced RAG systems face a trade-off between performance and efficiency.…

Information Retrieval · Computer Science 2025-08-05 Shengbo Gong , Xianfeng Tang , Carl Yang , Wei jin

Retrieval-augmented generation (RAG) has emerged as a pivotal method for expanding the knowledge of large language models. To handle complex queries more effectively, researchers developed Adaptive-RAG (A-RAG) to enhance the generated…

Artificial Intelligence · Computer Science 2025-05-27 Jie Ou , Jinyu Guo , Shuaihong Jiang , Zhaokun Wang , Libo Qin , Shunyu Yao , Wenhong Tian

Retrieval-augmented generation (RAG) is a popular technique for using large language models (LLMs) to build customer-support, question-answering solutions. In this paper, we share our team's practical experience building and maintaining…

Information Retrieval · Computer Science 2024-10-18 Sarah Packowski , Inge Halilovic , Jenifer Schlotfeldt , Trish Smith

Multi-modal Retrieval-Augmented Generation (RAG) has become a critical method for empowering LLMs by leveraging candidate visual documents. However, current methods consider the entire document as the basic retrieval unit, introducing…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Yinglu Li , Zhiying Lu , Zhihang Liu , Yiwei Sun , Chuanbin Liu , Hongtao Xie

Retrieval-augmented generation (RAG) systems have been widely adopted in contemporary large language models (LLMs) due to their ability to improve generation quality while reducing the required input context length. In this work, we focus…

Computation and Language · Computer Science 2026-04-07 Tianyi Zhang , Andreas Marfurt

Retrieval-augmented generation (RAG) systems rely on accurate document retrieval to ground large language models (LLMs) in external knowledge, yet retrieval quality often degrades in corpora where topics overlap and thematic variation is…

Information Retrieval · Computer Science 2026-01-06 Rodrigo Kataishi

Retrieval-augmented generation (RAG) has revitalized Large Language Models (LLMs) by injecting non-parametric factual knowledge. Compared with long-context LLMs, RAG is considered an effective summarization tool in a more concise and…

Computation and Language · Computer Science 2025-05-30 Haozhen Zhang , Tao Feng , Jiaxuan You

Graph Retrieval-Augmented Generation (GraphRAG) enhances factual reasoning in LLMs by structurally modeling knowledge through graph-based representations. However, existing GraphRAG approaches face two core limitations: shallow retrieval…

Computation and Language · Computer Science 2025-10-01 Cehao Yang , Xiaojun Wu , Xueyuan Lin , Chengjin Xu , Xuhui Jiang , Yuanliang Sun , Jia Li , Hui Xiong , Jian Guo
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