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Semantic Knowledge Graphs (SKG) face challenges with scalability, flexibility, contextual understanding, and handling unstructured or ambiguous information. However, they offer formal and structured knowledge enabling highly interpretable…

人工智能 · 计算机科学 2025-01-22 Aldo Gangemi , Andrea Giovanni Nuzzolese

Knowledge Graph Completion (KGC), which aims to infer missing or incomplete facts, is a crucial task for KGs. However, integrating the vital structural information of KGs into Large Language Models (LLMs) and outputting predictions…

Graph Retrieval-Augmented Generation (GraphRAG) has emerged as a promising paradigm that organizes external knowledge into structured graphs of entities and relations, enabling large language models (LLMs) to perform complex reasoning…

计算与语言 · 计算机科学 2026-04-14 Jinyoung Park , Sanghyeok Lee , Omar Zia Khan , Hyunwoo J. Kim , Joo-Kyung Kim

Knowledge graph completion (KGC) aims to predict missing triples in knowledge graphs (KGs) by leveraging existing triples and textual information. Recently, generative large language models (LLMs) have been increasingly employed for graph…

人工智能 · 计算机科学 2025-11-11 Yongkang Xiao , Sinian Zhang , Yi Dai , Huixue Zhou , Jue Hou , Jie Ding , Rui Zhang

Extensive research has investigated the integration of large language models (LLMs) with knowledge graphs to enhance the reasoning process. However, understanding how models perform reasoning utilizing structured graph knowledge remains…

计算与语言 · 计算机科学 2025-02-24 Han Zhang , Langshi Zhou , Hanfang Yang

Despite recent progress, Graphic User Interface (GUI) agents powered by Large Language Models (LLMs) struggle with complex mobile tasks due to limited app-specific knowledge. While UI Transition Graphs (UTGs) offer structured navigation…

Language agents have recently been used to simulate human behavior and user-item interactions for recommendation systems. However, current language agent simulations do not understand the relationships between users and items, leading to…

人工智能 · 计算机科学 2025-01-28 Taicheng Guo , Chaochun Liu , Hai Wang , Varun Mannam , Fang Wang , Xin Chen , Xiangliang Zhang , Chandan K. Reddy

Predicting missing facts in a knowledge graph (KG) is crucial as modern KGs are far from complete. Due to labor-intensive human labeling, this phenomenon deteriorates when handling knowledge represented in various languages. In this paper,…

人工智能 · 计算机科学 2022-03-30 Zijie Huang , Zheng Li , Haoming Jiang , Tianyu Cao , Hanqing Lu , Bing Yin , Karthik Subbian , Yizhou Sun , Wei Wang

Large language models (LLMs) often struggle with knowledge-intensive tasks due to hallucinations and outdated parametric knowledge. While Retrieval-Augmented Generation (RAG) addresses this by integrating external corpora, its effectiveness…

计算与语言 · 计算机科学 2026-02-04 Su Dong , Qinggang Zhang , Yilin Xiao , Shengyuan Chen , Chuang Zhou , Xiao Huang

Knowledge Graph Question Answering (KGQA) is a crucial task in natural language processing that requires reasoning over knowledge graphs (KGs) to answer natural language questions. Recent methods utilizing large language models (LLMs) have…

计算与语言 · 计算机科学 2025-06-12 Xiujun Zhou , Pingjian Zhang , Deyou Tang

Recommender systems are pivotal in enhancing user experiences across various web applications by analyzing the complicated relationships between users and items. Knowledge graphs(KGs) have been widely used to enhance the performance of…

信息检索 · 计算机科学 2024-07-02 Guangsi Shi , Xiaofeng Deng , Linhao Luo , Lijuan Xia , Lei Bao , Bei Ye , Fei Du , Shirui Pan , Yuxiao Li

Path-based relational reasoning over knowledge graphs has become increasingly popular due to a variety of downstream applications such as question answering in dialogue systems, fact prediction, and recommender systems. In recent years,…

机器学习 · 计算机科学 2020-03-16 Mandana Saebi , Steven Krieg , Chuxu Zhang , Meng Jiang , Nitesh Chawla

Retrieval-Augmented Generation (RAG) mitigates hallucination in Large Language Models (LLMs) by incorporating external data, with Knowledge Graphs (KGs) offering crucial information for question answering. Traditional Knowledge Graph…

计算与语言 · 计算机科学 2025-09-08 Yushi Sun , Kai Sun , Yifan Ethan Xu , Xiao Yang , Xin Luna Dong , Nan Tang , Lei Chen

Knowledge graph question answering (KGQA) presents significant challenges due to the structural and semantic variations across input graphs. Existing works rely on Large Language Model (LLM) agents for graph traversal and retrieval; an…

Pursuing artificial intelligence for biomedical science, a.k.a. AI Scientist, draws increasing attention, where one common approach is to build a copilot agent driven by Large Language Models (LLMs). However, to evaluate such systems,…

计算与语言 · 计算机科学 2024-07-02 Xinna Lin , Siqi Ma , Junjie Shan , Xiaojing Zhang , Shell Xu Hu , Tiannan Guo , Stan Z. Li , Kaicheng Yu

To sustain coherent long-term interactions, Large Language Model (LLM) agents must navigate the tension between acquiring new information and retaining prior knowledge. Current unified stream-based memory systems facilitate context updates…

Walk-based models have shown their advantages in knowledge graph (KG) reasoning by achieving decent performance while providing interpretable decisions. However, the sparse reward signals offered by the KG during traversal are often…

人工智能 · 计算机科学 2020-10-07 Deren Lei , Gangrong Jiang , Xiaotao Gu , Kexuan Sun , Yuning Mao , Xiang Ren

Knowledge graph completion (KGC) revolves around populating missing triples in a knowledge graph using available information. Text-based methods, which depend on textual descriptions of triples, often encounter difficulties when these…

计算与语言 · 计算机科学 2025-04-08 Haotian Li , Bin Yu , Yuliang Wei , Kai Wang , Richard Yi Da Xu , Bailing Wang

The Adobe Experience Platform AI Assistant is a conversational tool that enables organizations to interact seamlessly with proprietary enterprise data through a chatbot. However, due to access restrictions, Large Language Models (LLMs)…

信息检索 · 计算机科学 2025-02-24 Manisha Mukherjee , Sungchul Kim , Xiang Chen , Dan Luo , Tong Yu , Tung Mai

Inductive Knowledge Graph Reasoning (KGR) aims to discover facts in open-domain KGs containing unknown entities and relations, which poses a challenge for KGR models in comprehending uncertain KG components. Existing studies have proposed…

计算与语言 · 计算机科学 2026-04-08 Xingrui Zhuo , Jiapu Wang , Gongqing Wu , Zhongyuan Wang , Jichen Zhang , Shirui Pan , Xindong Wu