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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…

Computation and Language · Computer Science 2025-02-28 Ingeol Baek , Hwan Chang , Byeongjeong Kim , Jimin Lee , Hwanhee Lee

Retrieval-Augmented Generation (RAG) improves large language models by retrieving external knowledge, often truncated into smaller chunks due to the input context window, which leads to information loss, resulting in response hallucinations…

Computation and Language · Computer Science 2025-11-18 Jie Zhang , Bo Tang , Wanzi Shao , Wenqiang Wei , Jihao Zhao , Jianqing Zhu , Zhiyu li , Wen Xi , Zehao Lin , Feiyu Xiong , Yanchao Tan

Despite advancements in Large Language Models (LLMs) and Retrieval-Augmented Generation (RAG) systems, their effectiveness is often hindered by a lack of integration with entity relationships and community structures, limiting their ability…

Computation and Language · Computer Science 2024-08-19 Rong-Ching Chang , Jiawei Zhang

Retrieval-Augmented Generation (RAG) is widely used to ground large language models in external knowledge sources. However, when applied to heterogeneous corpora and multi-step queries, Naive RAG pipelines often degrade in quality due to…

Information Retrieval · Computer Science 2026-04-10 Valeriy Kovalskiy , Nikita Belov , Nikita Miteyko , Igor Reshetnikov , Max Maximov

We present a novel graph neural network (GNN) architecture for retrieval-augmented generation (RAG) that leverages query-aware attention mechanisms and learned scoring heads to improve retrieval accuracy on complex, multi-hop questions.…

Information Retrieval · Computer Science 2025-08-11 Vibhor Agrawal , Fay Wang , Rishi Puri

Today, two major trends are shaping the evolution of ML systems. First, modern AI systems are becoming increasingly complex, often integrating components beyond the model itself. A notable example is Retrieval-Augmented Generation (RAG),…

Databases · Computer Science 2025-08-13 Wenqi Jiang

Recent advances in large language models (LLMs) provide new opportunities for context understanding in virtual reality (VR). However, VR contexts are often highly localized and personalized, limiting the effectiveness of general-purpose…

Information Retrieval · Computer Science 2025-04-15 Shiyi Ding , Ying Chen

Retrieval-Augmented Generation (RAG) enhances Large Language Model (LLM) output by providing prior knowledge as context to input. This is beneficial for knowledge-intensive and expert reliant tasks, including legal question-answering, which…

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…

Computation and Language · Computer Science 2025-02-12 Xiangrong Zhu , Yuexiang Xie , Yi Liu , Yaliang Li , Wei Hu

In this work, we benchmark various graph-based retrieval-augmented generation (RAG) systems across a broad spectrum of query types, including OLTP-style (fact-based) and OLAP-style (thematic) queries, to address the complex demands of…

Information Retrieval · Computer Science 2025-03-06 Joyce Cahoon , Prerna Singh , Nick Litombe , Jonathan Larson , Ha Trinh , Yiwen Zhu , Andreas Mueller , Fotis Psallidas , Carlo Curino

The conventional use of the Retrieval-Augmented Generation (RAG) architecture has proven effective for retrieving information from diverse documents. However, challenges arise in handling complex table queries, especially within PDF…

Machine Learning · Computer Science 2024-02-13 Uday Allu , Biddwan Ahmed , Vishesh Tripathi

Graph-based Retrieval-Augmented Generation (Graph-RAG) enhances large language models (LLMs) by structuring retrieval over an external corpus. However, existing approaches typically assume a static corpus, requiring expensive full-graph…

Information Retrieval · Computer Science 2025-07-08 Fangyuan Zhang , Zhengjun Huang , Yingli Zhou , Qintian Guo , Zhixun Li , Wensheng Luo , Di Jiang , Yixiang Fang , Xiaofang Zhou

Retrieval-Augmented Generation (RAG) has become a core paradigm in document question answering tasks. However, existing methods have limitations when dealing with multimodal documents: one category of methods relies on layout analysis and…

Computation and Language · Computer Science 2026-03-09 Wang Chen , Wenhan Yu , Guanqiang Qi , Weikang Li , Yang Li , Lei Sha , Deguo Xia , Jizhou Huang

Retrieval-augmented generation (RAG) combines document retrieval with large language models to produce responses grounded in external evidence. While several R packages support core components of RAG workflows, integrated evaluation of RAG…

Computation · Statistics 2026-04-28 Muhammad Aimal Rehman , Zhili Lu , Chi-Kuang Yeh

Community Question Answering (CQA) platforms can be deemed as important knowledge bases in community, but effectively leveraging historical interactions and domain knowledge in real-time remains a challenge. Existing methods often…

Computation and Language · Computer Science 2025-07-02 Qinwen Chen , Wenbiao Tao , Zhiwei Zhu , Mingfan Xi , Liangzhong Guo , Yuan Wang , Wei Wang , Yunshi Lan

Retrieval-augmented generation (RAG) has demonstrated significant proficiency in conducting question-answering (QA) tasks within a specified corpus. Nonetheless, numerous failure instances of RAG in QA still exist. These failures are not…

Machine Learning · Computer Science 2025-06-09 Jintao Zhang , Guoliang Li , Jinyang Su

Retrieval-Augmented Generation (RAG) enhances Large Language Models (LLMs) by incorporating external, domain-specific data into the generative process. While LLMs are highly capable, they often rely on static, pre-trained datasets, limiting…

Artificial Intelligence · Computer Science 2024-12-10 Aniruddha Salve , Saba Attar , Mahesh Deshmukh , Sayali Shivpuje , Arnab Mitra Utsab

Retrieval-Augmented Generation (RAG) systems have emerged as a promising solution to enhance large language models (LLMs) by integrating external knowledge retrieval with generative capabilities. While significant advancements have been…

Human-Computer Interaction · Computer Science 2025-08-11 Sizhe Cheng , Jiaping Li , Huanchen Wang , Yuxin Ma

Retrieval-Augmented Generation (RAG) has emerged as a powerful paradigm for enhancing the capabilities of large language models. However, existing RAG evaluation predominantly focuses on text retrieval and relies on opaque, end-to-end…

Information Retrieval · Computer Science 2025-05-19 Chuan Xu , Qiaosheng Chen , Yutong Feng , Gong Cheng

Despite the popularity of retrieval-augmented generation (RAG) as a solution for grounded QA in both academia and industry, current RAG methods struggle with questions where the necessary information is distributed across many documents or…

Computation and Language · Computer Science 2025-11-11 Nathan Scales , Nathanael Schärli , Olivier Bousquet