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Question Answering over Knowledge Graph (KGQA) aims to seek answer entities for the natural language question from a large-scale Knowledge Graph~(KG). To better perform reasoning on KG, recent work typically adopts a pre-trained language…

计算与语言 · 计算机科学 2024-01-02 Jinhao Jiang , Kun Zhou , Wayne Xin Zhao , Yaliang Li , Ji-Rong Wen

While large language models (LLMs) have made considerable advancements in understanding and generating unstructured text, their application in structured data remains underexplored. Particularly, using LLMs for complex reasoning tasks on…

计算与语言 · 计算机科学 2023-10-18 Jiho Kim , Yeonsu Kwon , Yohan Jo , Edward Choi

While Large Language Models (LLMs) demonstrate exceptional performance in a multitude of Natural Language Processing (NLP) tasks, they encounter challenges in practical applications, including issues with hallucinations, inadequate…

计算与语言 · 计算机科学 2024-06-13 Yihao Li , Ru Zhang , Jianyi Liu

Knowledge Graph-based Retrieval-Augmented Generation (KG-RAG) is an increasingly explored approach for combining the reasoning capabilities of large language models with the structured evidence of knowledge graphs. However, current…

Large Language Models (LLMs) often struggle with inherent knowledge boundaries and hallucinations, limiting their reliability in knowledge-intensive tasks. While Retrieval-Augmented Generation (RAG) mitigates these issues, it frequently…

人工智能 · 计算机科学 2026-02-25 Yuqi Huang , Ning Liao , Kai Yang , Anning Hu , Shengchao Hu , Xiaoxing Wang , Junchi Yan

Large Language Models (LLMs) have shown strong inductive reasoning ability across various domains, but their reliability is hindered by the outdated knowledge and hallucinations. Retrieval-Augmented Generation mitigates these issues by…

计算与语言 · 计算机科学 2025-06-12 Tianjun Yao , Haoxuan Li , Zhiqiang Shen , Pan Li , Tongliang Liu , Kun Zhang

Large language models (LLMs) have demonstrated impressive reasoning abilities yet remain unreliable on knowledge-intensive, multi-hop questions -- they miss long-tail facts, hallucinate when uncertain, and their internal knowledge lags…

计算与语言 · 计算机科学 2025-10-13 Jia Ao Sun , Hao Yu , Fabrizio Gotti , Fengran Mo , Yihong Wu , Yuchen Hui , Jian-Yun Nie

Graph-based retrieval-augmented generation (GraphRAG) exploits structured knowledge to support knowledge-intensive reasoning. However, most existing methods treat graphs as intermediate artifacts, and the few subgraph-based retrieval…

信息检索 · 计算机科学 2026-03-10 Haonan Yuan , Qingyun Sun , Junhua Shi , Mingjun Liu , Jiaqi Yuan , Ziwei Zhang , Xingcheng Fu , Jianxin Li

Graph Retrieval-Augmented Generation (Graph RAG) effectively builds a knowledge graph (KG) to connect disparate facts across a large document corpus. However, this broad-view approach often lacks the deep structured reasoning needed for…

计算与语言 · 计算机科学 2025-10-27 Jiaoyang Li , Junhao Ruan , Shengwei Tang , Saihan Chen , Kaiyan Chang , Yuan Ge , Tong Xiao , Jingbo Zhu

Graph-based Retrieval-Augmented Generation (GraphRAG) advances flat document retrieval by structuring knowledge as relational graphs, enabling more coherent and effective reasoning. However, applying it to specific domains like legal…

计算与语言 · 计算机科学 2026-05-28 Zerui Chen , Qinggang Zhang , Zhishang Xiang , Zhimin Wei , Linfeng Gao , Xiao Huang , Zhihong Zhang , Jinsong Su

Human smuggling networks are increasingly adaptive and difficult to analyze. Legal case documents offer valuable insights but are unstructured, lexically dense, and filled with ambiguous or shifting references-posing challenges for…

计算与语言 · 计算机科学 2025-06-30 Dipak Meher , Carlotta Domeniconi , Guadalupe Correa-Cabrera

Knowledge Graphs (KGs) are foundational structures in many AI applications, representing entities and their interrelations through triples. However, triple-based KGs lack the contextual information of relational knowledge, like temporal…

人工智能 · 计算机科学 2024-07-01 Chengjin Xu , Muzhi Li , Cehao Yang , Xuhui Jiang , Lumingyuan Tang , Yiyan Qi , Jian Guo

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

To address the issues of insufficient knowledge and hallucination in Large Language Models (LLMs), numerous studies have explored integrating LLMs with Knowledge Graphs (KGs). However, these methods are typically evaluated on conventional…

计算与语言 · 计算机科学 2024-10-08 Yao Xu , Shizhu He , Jiabei Chen , Zihao Wang , Yangqiu Song , Hanghang Tong , Guang Liu , Kang Liu , Jun Zhao

Evaluations of large language models (LLMs) primarily emphasize convergent logical reasoning, where success is defined by producing a single correct proof. However, many real-world reasoning problems admit multiple valid derivations,…

人工智能 · 计算机科学 2026-02-25 Yanrui Wu , Lingling Zhang , Xinyu Zhang , Jiayu Chang , Pengyu Li , Xu Jiang , Jingtao Hu , Jun Liu

Retrieval-augmented generation (RAG) enables large language models (LLMs) to dynamically access external information, which is powerful for answering questions over previously unseen documents. Nonetheless, they struggle with high-level…

人工智能 · 计算机科学 2026-04-21 Chi-Hsiang Hsiao , Yi-Cheng Wang , Tzung-Sheng Lin , Yi-Ren Yeh , Chu-Song Chen

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

In knowledge-intensive tasks, especially in high-stakes domains like medicine and law, it is critical not only to retrieve relevant information but also to provide causal reasoning and explainability. Large language models (LLMs) have…

人工智能 · 计算机科学 2025-03-18 Hang Luo , Jian Zhang , Chujun Li

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

Large Language Models (LLMs) have demonstrated remarkable reasoning capabilities but often grapple with reliability challenges like hallucinations. While Knowledge Graphs (KGs) offer explicit grounding, existing paradigms of KG-augmented…

计算与语言 · 计算机科学 2026-04-15 Yuanxiang Liu , Songze Li , Xiaoke Guo , Zhaoyan Gong , Qifei Zhang , Huajun Chen , Wen Zhang