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Retrieval-Augmented Generation (RAG) mitigates hallucination in LLMs by incorporating external knowledge, but relies on chunk-based retrieval that lacks structural semantics. GraphRAG methods improve RAG by modeling knowledge as…

计算与语言 · 计算机科学 2025-07-30 Haoran Luo , Haihong E , Guanting Chen , Qika Lin , Yikai Guo , Fangzhi Xu , Zemin Kuang , Meina Song , Xiaobao Wu , Yifan Zhu , Luu Anh Tuan

Recommendation systems aim to provide users with relevant suggestions, but often lack interpretability and fail to capture higher-level semantic relationships between user behaviors and profiles. In this paper, we propose a novel approach…

Large Language Models (LLMs) demonstrate strong reasoning abilities but face limitations such as hallucinations and outdated knowledge. Knowledge Graph (KG)-based Retrieval-Augmented Generation (RAG) addresses these issues by grounding LLM…

计算与语言 · 计算机科学 2025-03-04 Mufei Li , Siqi Miao , Pan Li

Large Language Models (LLMs) have achieved remarkable success across various domains. However, they still face significant challenges, including high computational costs for training and limitations in solving complex reasoning problems.…

机器学习 · 计算机科学 2025-05-20 Hang Gao , Chenhao Zhang , Tie Wang , Junsuo Zhao , Fengge Wu , Changwen Zheng , Huaping Liu

Retrieval-augmented generation (RAG) is a powerful technique that enhances downstream task execution by retrieving additional information, such as knowledge, skills, and tools from external sources. Graph, by its intrinsic "nodes connected…

Graphs are widely used for modeling relational data in real-world scenarios, such as social networks and urban computing. Existing LLM-based graph analysis approaches either integrate graph neural networks (GNNs) for specific machine…

人工智能 · 计算机科学 2025-11-04 Xin Li , Qizhi Chu , Yubin Chen , Yang Liu , Yaoqi Liu , Zekai Yu , Weize Chen , Chen Qian , Chuan Shi , Cheng Yang

Graph-based retrieval-augmented generation (RAG) enables large language models (LLMs) to ground responses with structured external knowledge from up-to-date knowledge graphs (KGs) and reduce hallucinations. However, LLMs often rely on a…

计算与语言 · 计算机科学 2025-07-01 Deyu Zou , Yongqiang Chen , Mufei Li , Siqi Miao , Chenxi Liu , Bo Han , James Cheng , Pan Li

Retrieval-augmented generation (RAG) has proven effective in integrating knowledge into large language models (LLMs). However, conventional RAGs struggle to capture complex relationships between pieces of knowledge, limiting their…

信息检索 · 计算机科学 2025-12-12 Linhao Luo , Zicheng Zhao , Gholamreza Haffari , Dinh Phung , Chen Gong , Shirui Pan

Large Language Models (LLMs) have demonstrated significant potential across various domains. However, they often struggle with integrating external knowledge and performing complex reasoning, leading to hallucinations and unreliable…

机器学习 · 计算机科学 2025-11-25 Yao Cheng , Yibo Zhao , Jiapeng Zhu , Yao Liu , Xing Sun , Xiang Li

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,…

计算与语言 · 计算机科学 2025-11-11 Luyao Zhuang , Shengyuan Chen , Yilin Xiao , Huachi Zhou , Yujing Zhang , Hao Chen , Qinggang Zhang , Xiao Huang

Large Language Models (LLMs) have achieved impressive capabilities in language understanding and generation, yet they continue to underperform on knowledge-intensive reasoning tasks due to limited access to structured context and multi-hop…

计算与语言 · 计算机科学 2025-06-26 Travis Thompson , Seung-Hwan Lim , Paul Liu , Ruoying He , Dongkuan Xu

Retrieval-Augmented Generation (RAG) has emerged as a dominant paradigm for mitigating hallucinations in Large Language Models (LLMs) by incorporating external knowledge. Nevertheless, effectively integrating and interpreting key evidence…

计算与语言 · 计算机科学 2026-01-26 Zhenghao Liu , Mingyan Wu , Xinze Li , Yukun Yan , Shuo Wang , Cheng Yang , Minghe Yu , Zheni Zeng , Maosong Sun

Graph Retrieval-Augmented Generation (GRAG or Graph RAG) architectures aim to enhance language understanding and generation by leveraging external knowledge. However, effectively capturing and integrating the rich semantic information…

计算与语言 · 计算机科学 2025-01-29 Karishma Thakrar

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) systems enhance large language models (LLMs) by integrating external knowledge sources, enabling more accurate and contextually relevant responses tailored to user needs. However, existing RAG systems…

信息检索 · 计算机科学 2025-04-29 Zirui Guo , Lianghao Xia , Yanhua Yu , Tu Ao , Chao Huang

Graph Retrieval Augmented Generation (GRAG) is a novel paradigm that takes the naive RAG system a step further by integrating graph information, such as knowledge graph (KGs), into large-scale language models (LLMs) to mitigate…

人工智能 · 计算机科学 2025-01-27 Xujian Liang , Zhaoquan Gu

Despite the remarkable progress of Large Language Models (LLMs), their performance in question answering (QA) remains limited by the lack of domain-specific and up-to-date knowledge. Retrieval-Augmented Generation (RAG) addresses this…

信息检索 · 计算机科学 2025-09-17 Yaodong Su , Yixiang Fang , Yingli Zhou , Quanqing Xu , Chuanhui Yang

GraphRAG enhances large language models (LLMs) to generate quality answers for user questions by retrieving related facts from external knowledge graphs. However, current GraphRAG methods are primarily evaluated on and overly tailored for…

机器学习 · 计算机科学 2025-11-04 Renjie Liu , Haitian Jiang , Xiao Yan , Bo Tang , Jinyang Li

Current general-purpose large language models (LLMs) commonly exhibit knowledge hallucination and insufficient domain-specific adaptability in domain-specific tasks, limiting their effectiveness in specialized question answering scenarios.…

信息检索 · 计算机科学 2025-09-16 Mengzheng Yang , Yanfei Ren , David Osei Opoku , Ruochang Li , Peng Ren , Chunxiao Xing

Graph-based Retrieval-Augmented Generation (GraphRAG) extends traditional RAG by using knowledge graphs (KGs) to give large language models (LLMs) a structured, semantically coherent context, yielding more grounded answers. However,…

人工智能 · 计算机科学 2026-04-28 Zhuoling Li , Ha Linh Hong Tran Nguyen , Valeria Bladinieres , Maxim Romanovsky