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The goal of representation learning of knowledge graph is to encode both entities and relations into a low-dimensional embedding spaces. Many recent works have demonstrated the benefits of knowledge graph embedding on knowledge graph…

人工智能 · 计算机科学 2019-10-11 Wenqiang Liu , Hongyun Cai , Xu Cheng , Sifa Xie , Yipeng Yu , Hanyu Zhang

Knowledge graphs suffer from sparsity which degrades the quality of representations generated by various methods. While there is an abundance of textual information throughout the web and many existing knowledge bases, aligning information…

计算与语言 · 计算机科学 2021-04-13 Saed Rezayi , Handong Zhao , Sungchul Kim , Ryan A. Rossi , Nedim Lipka , Sheng Li

Embedding entities and relations into a continuous multi-dimensional vector space have become the dominant method for knowledge graph embedding in representation learning. However, most existing models ignore to represent hierarchical…

人工智能 · 计算机科学 2019-09-12 Cunxiang Wang , Feiliang Ren , Zhichao Lin , Chenxv Zhao , Tian Xie , Yue Zhang

Graph embedding provides an efficient solution for graph analysis by converting the graph into a low-dimensional space which preserves the structure information. In contrast to the graph structure data, the i.i.d. node embedding can be…

机器学习 · 计算机科学 2017-05-16 Hongyun Cai , Vincent W. Zheng , Kevin Chen-Chuan Chang

Graph embedding techniques have attracted growing interest since they convert the graph data into continuous and low-dimensional space. Effective graph analytic provides users a deeper understanding of what is behind the data and thus can…

机器学习 · 计算机科学 2022-01-21 Azita Nouri , Philip E. Davis , Pradeep Subedi , Manish Parashar

Word embeddings are a powerful approach for analyzing language and have been widely popular in numerous tasks in information retrieval and text mining. Training embeddings over huge corpora is computationally expensive because the input is…

机器学习 · 计算机科学 2018-12-11 Avishek Anand , Megha Khosla , Jaspreet Singh , Jan-Hendrik Zab , Zijian Zhang

Patterns stored within pre-trained deep neural networks compose large and powerful descriptive languages that can be used for many different purposes. Typically, deep network representations are implemented within vector embedding spaces,…

Many Knowledege Graphs (KGs) are frequently updated, forcing their Knowledge Graph Embeddings (KGEs) to adapt to these changes. To address this problem, continual learning techniques for KGEs incorporate embeddings for new entities while…

机器学习 · 计算机科学 2026-05-29 Gerard Pons , Besim Bilalli , Anna Queralt

We study the knowledge extrapolation problem to embed new components (i.e., entities and relations) that come with emerging knowledge graphs (KGs) in the federated setting. In this problem, a model trained on an existing KG needs to embed…

计算与语言 · 计算机科学 2022-05-11 Mingyang Chen , Wen Zhang , Zhen Yao , Xiangnan Chen , Mengxiao Ding , Fei Huang , Huajun Chen

Knowledge Graphs (KGs) are widely employed in artificial intelligence applications, such as question-answering and recommendation systems. However, KGs are frequently found to be incomplete. While much of the existing literature focuses on…

人工智能 · 计算机科学 2024-06-28 Sakher Khalil Alqaaidi , Krzysztof Kochut

Predicting missing facts in a knowledge graph (KG) is a crucial task in knowledge base construction and reasoning, and it has been the subject of much research in recent works using KG embeddings. While existing KG embedding approaches…

计算与语言 · 计算机科学 2020-10-09 Xuelu Chen , Muhao Chen , Changjun Fan , Ankith Uppunda , Yizhou Sun , Carlo Zaniolo

Graph embeddings have become a key and widely used technique within the field of graph mining, proving to be successful across a broad range of domains including social, citation, transportation and biological. Graph embedding techniques…

Recently, knowledge graph embedding, which projects symbolic entities and relations into continuous vector space, has become a new, hot topic in artificial intelligence. This paper addresses a new issue of multiple relation semantics that a…

计算与语言 · 计算机科学 2017-09-11 Han Xiao , Minlie Huang , Yu Hao , Xiaoyan Zhu

Empirical data plays an important role in evolutionary computation research. To make better use of the available data, ontologies have been proposed in the literature to organize their storage in a structured way. However, the full…

神经与进化计算 · 计算机科学 2023-01-25 Ana Kostovska , Diederick Vermetten , Sašo Džeroski , Panče Panov , Tome Eftimov , Carola Doerr

Knowledge graph (KG) entity typing aims at inferring possible missing entity type instances in KG, which is a very significant but still under-explored subtask of knowledge graph completion. In this paper, we propose a novel approach for KG…

计算与语言 · 计算机科学 2020-07-22 Yu Zhao , Anxiang Zhang , Ruobing Xie , Kang Liu , Xiaojie Wang

Graph embedding has attracted increasing attention due to its critical application in social network analysis. Most existing algorithms for graph embedding only rely on the typology information and fail to use the copious information in…

人工智能 · 计算机科学 2018-01-18 Guolei Sun , Xiangliang Zhang

In order to facilitate the accesses of general users to knowledge graphs, an increasing effort is being exerted to construct graph-structured queries of given natural language questions. At the core of the construction is to deduce the…

人工智能 · 计算机科学 2024-04-01 Ruijie Wang , Meng Wang , Jun Liu , Michael Cochez , Stefan Decker

Knowledge graphs are an efficient method for representing and connecting information across various concepts, useful in reasoning, question answering, and knowledge base completion tasks. They organize data by linking points, enabling…

Information extraction methods proved to be effective at triple extraction from structured or unstructured data. The organization of such triples in the form of (head entity, relation, tail entity) is called the construction of Knowledge…

人工智能 · 计算机科学 2022-08-25 Mohamad Zamini , Hassan Reza , Minou Rabiei

In recent years, following FAIR and open data principles, the number of available big data including biomedical data has been increased exponentially. In order to extract knowledge, these data should be curated, integrated, and semantically…

数据库 · 计算机科学 2018-11-06 Samaneh Jozashoori , Tatiana Novikova , Maria-Esther Vidal