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Integrating structured knowledge from Knowledge Graphs (KGs) into Large Language Models (LLMs) remains a key challenge for symbolic reasoning. Existing methods mainly rely on prompt engineering or fine-tuning, which lose structural fidelity…

机器学习 · 计算机科学 2025-05-13 Erica Coppolillo

Knowledge graph completion (KGC) is a widely used method to tackle incompleteness in knowledge graphs (KGs) by making predictions for missing links. Description-based KGC leverages pre-trained language models to learn entity and relation…

计算与语言 · 计算机科学 2024-03-05 Derong Xu , Ziheng Zhang , Zhenxi Lin , Xian Wu , Zhihong Zhu , Tong Xu , Xiangyu Zhao , Yefeng Zheng , Enhong Chen

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…

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

Recent advancements have witnessed the ascension of Large Language Models (LLMs), endowed with prodigious linguistic capabilities, albeit marred by shortcomings including factual inconsistencies and opacity. Conversely, Knowledge Graphs…

信息检索 · 计算机科学 2024-07-29 DaiFeng Li , Fan Xu

Large Language Models (LLMs) are widely used in critical fields such as healthcare, education, and finance due to their remarkable proficiency in various language-related tasks. However, LLMs are prone to generating factually incorrect…

Knowledge graphs (KGs) are large datasets with specific structures representing large knowledge bases (KB) where each node represents a key entity and relations amongst them are typed edges. Natural language queries formed to extract…

人工智能 · 计算机科学 2024-05-01 Abir Chakraborty

Hallucinations, the generation of apparently convincing yet false statements, remain a major barrier to the safe deployment of LLMs. Building on the strong performance of self-detection methods, we examine the use of structured knowledge…

计算与语言 · 计算机科学 2025-12-30 Sahil Kale , Antonio Luca Alfeo

Extrapolation in Large language models (LLMs) for open-ended inquiry encounters two pivotal issues: (1) hallucination and (2) expensive training costs. These issues present challenges for LLMs in specialized domains and personalized data,…

计算与语言 · 计算机科学 2024-05-22 Yu-Hsiang Lin , Huang-Ting Shieh , Chih-Yu Liu , Kuang-Ting Lee , Hsiao-Cheng Chang , Jing-Lun Yang , Yu-Sheng Lin

Large language models appear to learn facts from the large text corpora they are trained on. Such facts are encoded implicitly within their many parameters, making it difficult to verify or manipulate what knowledge has been learned.…

计算与语言 · 计算机科学 2022-10-27 Yifan Hou , Wenxiang Jiao , Meizhen Liu , Carl Allen , Zhaopeng Tu , Mrinmaya Sachan

Although Large Language Models achieve strong success in many tasks, they still suffer from hallucinations and knowledge deficiencies in real-world applications. Many knowledge graph-based retrieval-augmented generation (KG-RAG) methods…

人工智能 · 计算机科学 2025-05-28 Hairu Wang , Yuan Feng , Xike Xie , S Kevin Zhou

Large language models (LLMs) exhibit extensive medical knowledge but are prone to hallucinations and inaccurate citations, which pose a challenge to their clinical adoption and regulatory compliance. Current methods, such as Retrieval…

Large language models (LLMs) have achieved remarkable performance in natural language understanding and generation tasks. However, they often suffer from limitations such as difficulty in incorporating new knowledge, generating…

人工智能 · 计算机科学 2024-03-05 Yilin Wen , Zifeng Wang , Jimeng Sun

Answering open-domain questions requires world knowledge about in-context entities. As pre-trained Language Models (LMs) lack the power to store all required knowledge, external knowledge sources, such as knowledge graphs, are often used to…

计算与语言 · 计算机科学 2022-11-16 Ziniu Hu , Yichong Xu , Wenhao Yu , Shuohang Wang , Ziyi Yang , Chenguang Zhu , Kai-Wei Chang , Yizhou Sun

Multi-modal Large Language Models (MLLMs) for Visual Question Answering (VQA) often suffer from dual limitations: knowledge hallucination and insufficient fine-grained visual perception. Crucially, we identify that commonsense graphs and…

计算机视觉与模式识别 · 计算机科学 2026-05-28 Zhiyang Li , Ao Ke , Yukun Cao , Xike Xie

Large Language Models (LLMs) are often challenged by generating erroneous or hallucinated responses, especially in complex reasoning tasks. Leveraging Knowledge Graphs (KGs) as external knowledge sources has emerged as a viable solution.…

人工智能 · 计算机科学 2025-05-23 Yuan Sui , Yufei He , Nian Liu , Xiaoxin He , Kun Wang , Bryan Hooi

The generation of questions and answers (QA) from knowledge graphs (KG) plays a crucial role in the development and testing of educational platforms, dissemination tools, and large language models (LLM). However, existing approaches often…

计算与语言 · 计算机科学 2025-11-17 Sania Nayab , Marco Simoni , Giulio Rossolini , Andrea Saracino

Generative AI, such as Large Language Models (LLMs), has achieved impressive progress but still produces hallucinations and unverifiable claims, limiting reliability in sensitive domains. Retrieval-Augmented Generation (RAG) improves…

Knowledge Graph Retrieval-Augmented Generation (KG-RAG) extends the RAG paradigm by incorporating structured knowledge from knowledge graphs, enabling Large Language Models (LLMs) to perform more precise and explainable reasoning. While…

计算与语言 · 计算机科学 2026-02-04 Jing Ren , Bowen Li , Ziqi Xu , Xikun Zhang , Haytham Fayek , Xiaodong Li

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…

计算与语言 · 计算机科学 2026-04-07 Tianyi Zhang , Andreas Marfurt