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Large language models (LLMs) frequently generate confident yet factually incorrect content when used for language generation (a phenomenon often known as hallucination). Retrieval augmented generation (RAG) tries to reduce factual errors by…

信息检索 · 计算机科学 2026-04-01 Dobrik Georgiev , Kheeran Naidu , Alberto Cattaneo , Federico Monti , Carlo Luschi , Daniel Justus

Knowledge graphs (KGs) are the cornerstone of the semantic web, offering up-to-date representations of real-world entities and relations. Yet large language models (LLMs) remain largely static after pre-training, causing their internal…

计算与语言 · 计算机科学 2026-03-24 Songlin Zhai , Guilin Qi , Yue Wang , Yuan Meng

In this paper, we investigate the retrieval-augmented generation (RAG) based on Knowledge Graphs (KGs) to improve the accuracy and reliability of Large Language Models (LLMs). Recent approaches suffer from insufficient and repetitive…

计算与语言 · 计算机科学 2024-04-22 Xinke Jiang , Ruizhe Zhang , Yongxin Xu , Rihong Qiu , Yue Fang , Zhiyuan Wang , Jinyi Tang , Hongxin Ding , Xu Chu , Junfeng Zhao , Yasha Wang

Large Language Models (LLMs) have showcased impressive reasoning abilities, but often suffer from hallucinations or outdated knowledge. Knowledge Graph (KG)-based Retrieval-Augmented Generation (RAG) remedies these shortcomings by grounding…

信息检索 · 计算机科学 2025-05-29 Martin Böckling , Heiko Paulheim , Andreea Iana

Large language models (LLMs) have demonstrated impressive reasoning abilities in complex tasks. However, they lack up-to-date knowledge and experience hallucinations during reasoning, which can lead to incorrect reasoning processes and…

计算与语言 · 计算机科学 2024-02-27 Linhao Luo , Yuan-Fang Li , Gholamreza Haffari , Shirui Pan

We propose a scalable and cost-efficient framework for deploying Graph-based Retrieval-Augmented Generation (GraphRAG) in enterprise environments. While GraphRAG has shown promise for multi- hop reasoning and structured retrieval, its…

人工智能 · 计算机科学 2025-12-19 Congmin Min , Sahil Bansal , Joyce Pan , Abbas Keshavarzi , Rhea Mathew , Amar Viswanathan Kannan

Graph-RAG constructs a knowledge graph from text chunks to improve retrieval in Large Language Model (LLM)-based question answering. It is particularly useful in domains such as biomedicine, law, and political science, where retrieval often…

信息检索 · 计算机科学 2025-06-04 Yiqian Huang , Shiqi Zhang , Xiaokui Xiao

Large Language Models (LLMs) face challenges in knowledge-intensive reasoning tasks like classic multi-hop question and answering, which involves reasoning across multiple facts. This difficulty arises because the chain of thoughts (CoTs)…

计算与语言 · 计算机科学 2025-08-25 Nan Wang , Yongqi Fan , yansha zhu , ZongYu Wang , Xuezhi Cao , Xinyan He , Haiyun Jiang , Tong Ruan , Jingping Liu

A KG represents a network of entities and illustrates relationships between them. KGs are used for various applications, including semantic search and discovery, reasoning, decision-making, natural language processing, machine learning, and…

人工智能 · 计算机科学 2025-08-06 Nandana Mihindukulasooriya , Niharika S. D'Souza , Faisal Chowdhury , Horst Samulowitz

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

The purpose of this study is to introduce SKG-LLM. A knowledge graph (KG) is constructed from stroke-related articles using mathematical and large language models (LLMs). SKG-LLM extracts and organizes complex relationships from the…

人工智能 · 计算机科学 2025-03-11 Ali Sarabadani , Kheirolah Rahsepar Fard , Hamid Dalvand

The construction of attack technique knowledge graphs aims to transform various types of attack knowledge into structured representations for more effective attack procedure modeling. Existing methods typically rely on textual data, such as…

密码学与安全 · 计算机科学 2024-11-14 Jian Wang , Tiantian Zhu , Chunlin Xiong , Yan Chen

Knowledge graphs (KGs), with their structured representation capabilities, offer promising avenue for enhancing Retrieval Augmented Generation (RAG) systems, leading to the development of KG-RAG systems. Nevertheless, existing methods often…

信息检索 · 计算机科学 2025-10-17 Yikuan Hu , Jifeng Zhu , Lanrui Tang , Chen Huang

Knowledge Graphs (KGs), as structured knowledge bases that organize relational information across diverse domains, provide a unified semantic foundation for cross-domain recommendation (CDR). By integrating symbolic knowledge with user-item…

信息检索 · 计算机科学 2025-11-05 Yuhan Wang , Qing Xie , Zhifeng Bao , Mengzi Tang , Lin Li , Yongjian Liu

Knowledge graph completion (KGC) focuses on identifying missing triples in a knowledge graph (KG) , which is crucial for many downstream applications. Given the rapid development of large language models (LLMs), some LLM-based methods are…

计算与语言 · 计算机科学 2025-01-06 Rui Yang , Jiahao Zhu , Jianping Man , Hongze Liu , Li Fang , Yi Zhou

The ability of knowledge graphs to represent complex relationships at scale has led to their adoption for various needs including knowledge representation, question-answering, and recommendation systems. Knowledge graphs are often…

计算与语言 · 计算机科学 2023-05-18 Jason Youn , Ilias Tagkopoulos

High-stakes domains like cyber operations need responsible and trustworthy AI methods. While large language models (LLMs) are becoming increasingly popular in these domains, they still suffer from hallucinations. This research paper…

人机交互 · 计算机科学 2025-04-18 Harry Li , Gabriel Appleby , Kenneth Alperin , Steven R Gomez , Ashley Suh

Clinical diagnosis is time-consuming, requiring intensive interactions between patients and medical professionals. While large language models (LLMs) could ease the pre-diagnostic workload, their limited domain knowledge hinders effective…

计算与语言 · 计算机科学 2026-03-03 Liwen Sun , Xiang Yu , Ming Tan , Zhuohao Chen , Anqi Cheng , Ashutosh Joshi , Chenyan Xiong

The preservation of intangible cultural heritage is a critical challenge as collective memory fades over time. While Large Language Models (LLMs) offer a promising avenue for generating engaging narratives, their propensity for factual…

人工智能 · 计算机科学 2026-04-06 Naga Sowjanya Barla , Jacopo de Berardinis

Large language models (LLMs) have shown great potential in story generation, but challenges remain in maintaining long-form coherence and effective, user-friendly control. Retrieval-augmented generation (RAG) has proven effective in…