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Knowledge Graphs (KGs) are composed of structured information about a particular domain in the form of entities and relations. In addition to the structured information KGs help in facilitating interconnectivity and interoperability between…

人工智能 · 计算机科学 2020-05-15 Genet Asefa Gesese , Russa Biswas , Mehwish Alam , Harald Sack

Knowledge Graphs (KGs) have gained considerable attention recently from both academia and industry. In fact, incorporating graph technology and the copious of various graph datasets have led the research community to build sophisticated…

人工智能 · 计算机科学 2020-06-03 Bilal Abu-Salih , Marwan Al-Tawil , Ibrahim Aljarah , Hossam Faris , Pornpit Wongthongtham

Open Knowledge Graphs (such as DBpedia, Wikidata, YAGO) have been recognized as the backbone of diverse applications in the field of data mining and information retrieval. Hence, the completeness and correctness of the Knowledge Graphs…

计算与语言 · 计算机科学 2020-05-07 Russa Biswas , Radina Sofronova , Mehwish Alam , Harald Sack

Knowledge graph embeddings are dense numerical representations of entities in a knowledge graph (KG). While the majority of approaches concentrate only on relational information, i.e., relations between entities, fewer approaches exist…

人工智能 · 计算机科学 2023-09-07 Patryk Preisner , Heiko Paulheim

Many mathematical models have been leveraged to design embeddings for representing Knowledge Graph (KG) entities and relations for link prediction and many downstream tasks. These mathematically-inspired models are not only highly scalable…

人工智能 · 计算机科学 2023-09-25 Xiou Ge , Yun-Cheng Wang , Bin Wang , C. -C. Jay Kuo

In recent years, Knowledge Graph (KG) development has attracted significant researches considering the applications in web search, relation prediction, natural language processing, information retrieval, question answering to name a few.…

信息检索 · 计算机科学 2022-05-19 Satvik Garg , Dwaipayan Roy

Knowledge Graphs (KGs) and their machine learning counterpart, Knowledge Graph Embedding Models (KGEMs), have seen ever-increasing use in a wide variety of academic and applied settings. In particular, KGEMs are typically applied to KGs to…

机器学习 · 计算机科学 2024-12-16 Jeffrey Sardina , John D. Kelleher , Declan O'Sullivan

Recently decades have witnessed the empirical success of framing Knowledge Graph (KG) embeddings via language models. However, language model-based KG embeddings are usually deployed as static artifacts, making them difficult to modify…

计算与语言 · 计算机科学 2023-12-29 Siyuan Cheng , Ningyu Zhang , Bozhong Tian , Xi Chen , Qingbing Liu , Huajun Chen

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 graphs, on top of entities and their relationships, contain other important elements: literals. Literals encode interesting properties (e.g. the height) of entities that are not captured by links between entities alone. Most of…

人工智能 · 计算机科学 2019-07-19 Agustinus Kristiadi , Mohammad Asif Khan , Denis Lukovnikov , Jens Lehmann , Asja Fischer

Entity alignment seeks to find entities in different knowledge graphs (KGs) that refer to the same real-world object. Recent advancement in KG embedding impels the advent of embedding-based entity alignment, which encodes entities in a…

计算与语言 · 计算机科学 2020-07-21 Zequn Sun , Qingheng Zhang , Wei Hu , Chengming Wang , Muhao Chen , Farahnaz Akrami , Chengkai Li

Representation Learning of words and Knowledge Graphs (KG) into low dimensional vector spaces along with its applications to many real-world scenarios have recently gained momentum. In order to make use of multiple KG embeddings for…

计算与语言 · 计算机科学 2020-04-16 Russa Biswas , Mehwish Alam , Harald Sack

As large language models (LLMs) continue to grow in size, their abilities to tackle complex tasks have significantly improved. However, issues such as hallucination and the lack of up-to-date knowledge largely remain unresolved. Knowledge…

人工智能 · 计算机科学 2026-03-17 Lihui Liu

In recent years, we have witnessed the proliferation of knowledge graphs (KG) in various domains, aiming to support applications like question answering, recommendations, etc. A frequent task when integrating knowledge from different KGs is…

数据库 · 计算机科学 2023-06-08 Nikolaos Fanourakis , Vasilis Efthymiou , Dimitris Kotzinos , Vassilis Christophides

Author name ambiguity causes inadequacy and inconvenience in academic information retrieval, which raises the necessity of author name disambiguation (AND). Existing AND methods can be divided into two categories: the models focusing on…

社会与信息网络 · 计算机科学 2020-02-25 Haiwen Wang , Ruijie Wang , Chuan Wen , Shuhao Li , Yuting Jia , Weinan Zhang , Xinbing Wang

Knowledge graph (KG) embedding aims at embedding entities and relations in a KG into a lowdimensional latent representation space. Existing KG embedding approaches model entities andrelations in a KG by utilizing real-valued ,…

机器学习 · 计算机科学 2021-03-24 Chengjin Xu , Mojtaba Nayyeri , Yung-Yu Chen , Jens Lehmann

Embedding based Knowledge Graph (KG) Completion has gained much attention over the past few years. Most of the current algorithms consider a KG as a multidirectional labeled graph and lack the ability to capture the semantics underlying the…

人工智能 · 计算机科学 2024-07-12 Mehwish Alam , Frank van Harmelen , Maribel Acosta

Knowledge Graph Embedding (KGE) aims to represent entities and relations of knowledge graph in a low-dimensional continuous vector space. Recent works focus on incorporating structural knowledge with additional information, such as entity…

计算与语言 · 计算机科学 2018-08-14 Kai Wang , Yu Liu , Xiujuan Xu , Dan Lin

Knowledge Graphs (KGs) often have two characteristics: heterogeneous graph structure and text-rich entity/relation information. Text-based KG embeddings can represent entities by encoding descriptions with pre-trained language models, but…

计算与语言 · 计算机科学 2023-09-15 Xin Xie , Zhoubo Li , Xiaohan Wang , Zekun Xi , Ningyu Zhang

The incompleteness of Knowledge Graphs (KGs) is a crucial issue affecting the quality of AI-based services. In the scholarly domain, KGs describing research publications typically lack important information, hindering our ability to analyse…

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