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Hyper-relational Knowledge Graphs (HRKGs) extend traditional KGs beyond binary relations, enabling the representation of contextual, provenance, and temporal information in domains, such as historical events, sensor data, video content, and…

机器学习 · 计算机科学 2025-04-01 Shusaku Egami , Kyoumoto Matsushita , Takanori Ugai , Ken Fukuda

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…

Personalized recommender systems play a crucial role in direct marketing, particularly in financial services, where delivering relevant content can enhance customer engagement and promote informed decision-making. This study explores…

Large language models (LLMs) demonstrate exceptional performance across a variety of tasks, yet they are often affected by hallucinations and the timeliness of knowledge. Leveraging knowledge graphs (KGs) as external knowledge sources has…

计算与语言 · 计算机科学 2024-12-31 Siyuan Fang , Kaijing Ma , Tianyu Zheng , Xinrun Du , Ningxuan Lu , Ge Zhang , Qingkun Tang

Knowledge management is a critical challenge for enterprises in today's digital world, as the volume and complexity of data being generated and collected continue to grow incessantly. Knowledge graphs (KG) emerged as a promising solution to…

计算与语言 · 计算机科学 2024-04-03 Phillip Schneider , Tim Schopf , Juraj Vladika , Florian Matthes

With knowledge graphs (KGs) at the center of numerous applications such as recommender systems and question answering, the need for generalized pipelines to construct and continuously update such KGs is increasing. While the individual…

人工智能 · 计算机科学 2024-09-05 Marvin Hofer , Daniel Obraczka , Alieh Saeedi , Hanna Köpcke , Erhard Rahm

Despite the recent popularity of knowledge graph (KG) related tasks and benchmarks such as KG embeddings, link prediction, entity alignment and evaluation of the reasoning abilities of pretrained language models as KGs, the structure and…

机器学习 · 计算机科学 2023-11-14 Nedelina Teneva , Estevam Hruschka

We propose KG-ER, a conceptual schema language for knowledge graphs that describes the structure of knowledge graphs independently of their representation (relational databases, property graphs, RDF) while helping to capture the semantics…

Misinformation spreading over the Internet poses a significant threat to both societies and individuals, necessitating robust and scalable fact-checking that relies on retrieving accurate and trustworthy evidence. Previous methods rely on…

人工智能 · 计算机科学 2026-03-03 Shuzhi Gong , Richard O. Sinnott , Jianzhong Qi , Cecile Paris , Preslav Nakov , Zhuohan Xie

Knowledge Graphs (KGs) are foundational to applications such as search, question answering, and recommendation. Conventional knowledge graph construction methods are predominantly static, rely ing on a single-step construction from a fixed…

人工智能 · 计算机科学 2026-03-23 Weidong Bao , Yilin Wang , Ruyu Gao , Fangling Leng , Yubin Bao , Ge Yu

In this paper, we present a novel diagnostic framework that integrates Knowledge Graphs (KGs) and Large Language Models (LLMs) to support system diagnostics in high-reliability systems such as nuclear power plants. Traditional diagnostic…

人工智能 · 计算机科学 2025-09-01 Saman Marandi , Yu-Shu Hu , Mohammad Modarres

Recent advances in Retrieval-Augmented Generation (RAG) have revolutionized knowledge-intensive tasks, yet traditional RAG methods struggle when the search space is unknown or when documents are semi-structured or structured. We introduce a…

信息检索 · 计算机科学 2026-03-25 Manie Tadayon , Mayank Gupta

This paper presents a novel knowledge-informed graph neural planner (KG-Planner) to address the challenge of efficiently planning collision-free motions for robots in high-dimensional spaces, considering both static and dynamic environments…

机器人学 · 计算机科学 2024-05-14 Wansong Liu , Kareem Eltouny , Sibo Tian , Xiao Liang , Minghui Zheng

Knowledge Graphs (KGs) are essential for the functionality of GraphRAGs, a form of Retrieval-Augmented Generative Systems (RAGs) that excel in tasks requiring structured reasoning and semantic understanding. However, creating KGs for…

计算与语言 · 计算机科学 2024-12-11 Ahan Bhatt , Nandan Vaghela , Kush Dudhia

Knowledge Graphs (KGs) can serve as reliable knowledge sources for question answering (QA) due to their structured representation of knowledge. Existing research on the utilization of KG for large language models (LLMs) prevalently relies…

计算与语言 · 计算机科学 2024-10-25 Kun Li , Tianhua Zhang , Xixin Wu , Hongyin Luo , James Glass , Helen Meng

Recent large language model (LLM) reasoning, despite its success, suffers from limited domain knowledge, susceptibility to hallucinations, and constrained reasoning depth, particularly in small-scale models deployed in resource-constrained…

人工智能 · 计算机科学 2025-03-04 Wenjie Wu , Yongcheng Jing , Yingjie Wang , Wenbin Hu , Dacheng Tao

Large language models (LLMs) have significantly advanced performance across a spectrum of natural language processing (NLP) tasks. Yet, their application to knowledge graphs (KGs), which describe facts in the form of triplets and allow…

Keyword search provides ordinary users an easy-to-use interface for querying RDF data. Given the input keywords, in this paper, we study how to assemble a query graph that is to represent user's query intention accurately and efficiently.…

数据库 · 计算机科学 2017-08-28 Shuo Han , Lei Zou , Jeffrey Xu Yu , Dongyan Zhao

Generating SystemVerilog Assertions (SVAs) from natural language specifications remains a major challenge in formal verification (FV) due to the inherent ambiguity and incompleteness of specifications. Existing LLM-based approaches, such as…

人工智能 · 计算机科学 2025-05-16 Yunsheng Bai , Ghaith Bany Hamad , Syed Suhaib , Haoxing Ren

Knowledge graph (KG) reasoning is a task that aims to predict unknown facts based on known factual samples. Reasoning methods can be divided into two categories: rule-based methods and KG-embedding based methods. The former possesses…

人工智能 · 计算机科学 2024-07-08 Fengsong Sun , Jinyu Wang , Zhiqing Wei , Xianchao Zhang
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