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Knowledge graphs (KGs) consisting of a large number of triples have become widespread recently, and many knowledge graph embedding (KGE) methods are proposed to embed entities and relations of a KG into continuous vector spaces. Such…

Machine Learning · Computer Science 2022-05-09 Mingyang Chen , Wen Zhang , Yushan Zhu , Hongting Zhou , Zonggang Yuan , Changliang Xu , Huajun Chen

Most knowledge graph embedding (KGE) methods tailored for link prediction focus on the entities and relations in the graph, giving little attention to other literal values, which might encode important information. Therefore, some…

Machine Learning · Computer Science 2025-04-02 Antonis Klironomos , Baifan Zhou , Zhuoxun Zheng , Gad-Elrab Mohamed , Heiko Paulheim , Evgeny Kharlamov

Knowledge Graph Embedding (KGE) techniques play a pivotal role in transforming symbolic Knowledge Graphs (KGs) into numerical representations, thereby enhancing various deep learning models for knowledge-augmented applications. Unlike…

Machine Learning · Computer Science 2025-03-24 Guanglin Niu

Knowledge graphs (KGs), structured as multi-relational data of entities and relations, are vital for tasks like data analysis and recommendation systems. Knowledge graph completion (KGC), or link prediction, addresses incompleteness of KGs…

Machine Learning · Computer Science 2025-06-16 Huiling Zhu , Yingqi Zeng

A key to knowledge graph embedding (KGE) is to choose a proper representation space, e.g., point-wise Euclidean space and complex vector space. In this paper, we propose a unified perspective of embedding and introduce uncertainty into KGE…

Machine Learning · Computer Science 2024-10-01 Changyi Xiao , Xiangnan He , Yixin Cao

The recent proliferation of knowledge graphs (KGs) coupled with incomplete or partial information, in the form of missing relations (links) between entities, has fueled a lot of research on knowledge base completion (also known as relation…

Machine Learning · Computer Science 2019-06-05 Deepak Nathani , Jatin Chauhan , Charu Sharma , Manohar Kaul

The Knowledge Graph Completion~(KGC) task aims to infer the missing entity from an incomplete triple. Existing embedding-based methods rely solely on triples in the KG, which is vulnerable to specious relation patterns and long-tail…

Artificial Intelligence · Computer Science 2025-05-01 Muzhi Li , Cehao Yang , Chengjin Xu , Xuhui Jiang , Yiyan Qi , Jian Guo , Ho-fung Leung , Irwin King

Knowledge graph (KG) embedding aims at learning the latent representations for entities and relations of a KG in continuous vector spaces. An empirical observation is that the head (tail) entities connected by the same relation often share…

Computation and Language · Computer Science 2022-06-17 Xueliang Wang , Jiajun Chen , Feng Wu , Jie Wang

Knowledge graph embedding (KGE) focuses on representing the entities and relations of a knowledge graph (KG) into the continuous vector spaces, which can be employed to predict the missing triples to achieve knowledge graph completion…

Computation and Language · Computer Science 2023-07-25 Yichi Zhang , Wen Zhang

Learning the embeddings of knowledge graphs (KG) is vital in artificial intelligence, and can benefit various downstream applications, such as recommendation and question answering. In recent years, many research efforts have been proposed…

Artificial Intelligence · Computer Science 2022-10-25 Zhiping Luo , Wentao Xu , Weiqing Liu , Jiang Bian , Jian Yin , Tie-Yan Liu

Knowledge graphs often suffer from incompleteness issues, which can be alleviated through information completion. However, current state-of-the-art deep knowledge convolutional embedding models rely on external convolution kernels and…

Computation and Language · Computer Science 2025-06-13 Wenbin Guo , Zhao Li , Xin Wang , Zirui Chen , Jun Zhao , Jianxin Li , Ye Yuan

Knowledge graph completion (KGC) aims to solve the incompleteness of knowledge graphs (KGs) by predicting missing links from known triples, numbers of knowledge graph embedding (KGE) models have been proposed to perform KGC by learning…

Artificial Intelligence · Computer Science 2023-06-14 Jining Wang , Delai Qiu , YouMing Liu , Yining Wang , Chuan Chen , Zibin Zheng , Yuren Zhou

Static knowledge graph (SKG) embedding (SKGE) has been studied intensively in the past years. Recently, temporal knowledge graph (TKG) embedding (TKGE) has emerged. In this paper, we propose a Recursive Temporal Fact Embedding (RTFE)…

Artificial Intelligence · Computer Science 2021-06-07 Youri Xu , E Haihong , Meina Song , Wenyu Song , Xiaodong Lv , Wang Haotian , Yang Jinrui

Nowadays, Knowledge graphs (KGs) have been playing a pivotal role in AI-related applications. Despite the large sizes, existing KGs are far from complete and comprehensive. In order to continuously enrich KGs, automatic knowledge…

Computation and Language · Computer Science 2021-11-12 Zhao Zhang , Fuzhen Zhuang , Hengshu Zhu , Chao Li , Hui Xiong , Qing He , Yongjun Xu

As KGs are symbolic constructs, specialized techniques have to be applied in order to make them compatible with data mining techniques. RDF2Vec is an unsupervised technique that can create task-agnostic numerical representations of the…

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 ,…

Machine Learning · Computer Science 2021-03-24 Chengjin Xu , Mojtaba Nayyeri , Yung-Yu Chen , Jens Lehmann

Knowledge graph embedding, which projects symbolic entities and relations into continuous vector spaces, is gaining increasing attention. Previous methods allow a single static embedding for each entity or relation, ignoring their intrinsic…

Artificial Intelligence · Computer Science 2020-04-07 Quan Wang , Pingping Huang , Haifeng Wang , Songtai Dai , Wenbin Jiang , Jing Liu , Yajuan Lyu , Yong Zhu , Hua Wu

Graph data structures are widely used to store relational information between several entities. With data being generated worldwide on a large scale, we see a significant growth in the generation of knowledge graphs. Thing in the future is…

Artificial Intelligence · Computer Science 2023-10-24 Rohith Teja Mittakola , Thomas Hassan

Knowledge Graphs (KGs) are becoming essential to information systems that require access to structured data. Several approaches have been recently proposed, for obtaining vector representations of KGs suitable for Machine Learning tasks,…

Artificial Intelligence · Computer Science 2018-04-17 Muhammad Rizwan Saeed , Charalampos Chelmis , Viktor K. Prasanna

Knowledge graphs have become a popular formalism for representing entities and their properties using a graph data model, e.g., the Resource Description Framework (RDF). An RDF graph comprises entities of the same type connected to objects…

Databases · Computer Science 2020-03-12 Farah Karim , Maria-Esther Vidal , Sören Auer