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Knowledge graph embedding (KGE) constitutes a foundational task, directed towards learning representations for entities and relations within knowledge graphs (KGs), with the objective of crafting representations comprehensive enough to…

Artificial Intelligence · Computer Science 2024-09-10 Yang Liu , Chuan Zhou , Peng Zhang , Yanan Cao , Yongchao Liu , Zhao Li , Hongyang Chen

Recent years have witnessed the successful application of low-dimensional vector space representations of knowledge graphs to predict missing facts or find erroneous ones. However, it is not yet well-understood to what extent ontological…

Artificial Intelligence · Computer Science 2018-08-22 Víctor Gutiérrez-Basulto , Steven Schockaert

Knowledge graph completion (KGC) aims to automatically infer missing facts in multi-relational data by mapping entities and relations into continuous representation spaces. Recent region-based embedding models have shown great promise in…

Machine Learning · Computer Science 2026-05-13 Yingqi Zeng , Luying Wang , Huiling Zhu

Knowledge Graph (KG) alignment is to discover the mappings (i.e., equivalent entities, relations, and others) between two KGs. The existing methods can be divided into the embedding-based models, and the conventional reasoning and lexical…

Computation and Language · Computer Science 2021-06-14 Zhiyuan Qi , Ziheng Zhang , Jiaoyan Chen , Xi Chen , Yuejia Xiang , Ningyu Zhang , Yefeng Zheng

Learning low-dimensional numerical representations from symbolic data, e.g., embedding the nodes of a graph into a geometric space, is an important concept in machine learning. While embedding into Euclidean space is common, recent…

Machine Learning · Computer Science 2024-10-10 Thomas Bläsius , Jean-Pierre von der Heydt , Maximilian Katzmann , Nikolai Maas

Embedding of a knowledge graph(KG) entities and relations in the form of vectors is an important aspect for the manipulation of the KG database for several downstream tasks, such as link prediction, knowledge graph completion, and…

Quantum Physics · Physics 2025-07-04 Pulak Ranjan Giri , Mori Kurokawa , Kazuhiro Saito

The choice of geometric space for knowledge graph (KG) embeddings can have significant effects on the performance of KG completion tasks. The hyperbolic geometry has been shown to capture the hierarchical patterns due to its tree-like…

Machine Learning · Computer Science 2022-11-08 Huiru Xiao , Xin Liu , Yangqiu Song , Ginny Y. Wong , Simon See

As the field of quantum physics evolves, researchers naturally form subgroups focusing on specialized problems. While this encourages in-depth exploration, it can limit the exchange of ideas across structurally similar problems in different…

Machine Learning · Computer Science 2024-11-12 Felix Frohnert , Xuemei Gu , Mario Krenn , Evert van Nieuwenburg

Entity alignment aims to match identical entities across different knowledge graphs (KGs). Graph neural network-based entity alignment methods have achieved promising results in Euclidean space. However, KGs often contain complex…

Computation and Language · Computer Science 2024-12-09 Cunda Wang , Weihua Wang , Qiuyu Liang , Feilong Bao , Guanglai Gao

Embedding entities and relations of a knowledge graph in a low-dimensional space has shown impressive performance in predicting missing links between entities. Although progresses have been achieved, existing methods are heuristically…

Computation and Language · Computer Science 2021-01-26 Danushka Bollegala , Huda Hakami , Yuichi Yoshida , Ken-ichi Kawarabayashi

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

A Knowledge Graph (KG) is the directed graphical representation of entities and relations in the real world. KG can be applied in diverse Natural Language Processing (NLP) tasks where knowledge is required. The need to scale up and complete…

Computation and Language · Computer Science 2024-04-19 Xincan Feng , Zhi Qu , Yuchang Cheng , Taro Watanabe , Nobuhiro Yugami

Representation learning on a knowledge graph (KG) is to embed entities and relations of a KG into low-dimensional continuous vector spaces. Early KG embedding methods only pay attention to structured information encoded in triples, which…

Computation and Language · Computer Science 2020-01-01 Guanglin Niu , Yongfei Zhang , Bo Li , Peng Cui , Si Liu , Jingyang Li , Xiaowei Zhang

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…

Machine Learning · Computer Science 2026-05-29 Gerard Pons , Besim Bilalli , Anna Queralt

Graph embedding provides a feasible methodology to conduct pattern classification for graph-structured data by mapping each data into the vectorial space. Various pioneering works are essentially coding method that concentrates on a…

Machine Learning · Computer Science 2022-10-04 Xue Liu , Dan Sun , Xiaobo Cao , Hao Ye , Wei Wei

Gait recognition under multiple views is an important computer vision and pattern recognition task. In the emerging convolutional neural network based approaches, the information of view angle is ignored to some extent. Instead of direct…

Computer Vision and Pattern Recognition · Computer Science 2021-08-13 Tianrui Chai , Xinyu Mei , Annan Li , Yunhong Wang

Knowledge graph embedding~(KGE) aims to represent entities and relations into low-dimensional vectors for many real-world applications. The representations of entities and relations are learned via contrasting the positive and negative…

Artificial Intelligence · Computer Science 2022-02-22 Feihu Che , Guohua Yang , Pengpeng Shao , Dawei Zhang , Jianhua Tao

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

In this paper, we present KGvec2go, a Web API for accessing and consuming graph embeddings in a light-weight fashion in downstream applications. Currently, we serve pre-trained embeddings for four knowledge graphs. We introduce the service…

Computation and Language · Computer Science 2020-03-13 Jan Portisch , Michael Hladik , Heiko Paulheim

Entity alignment, which is a prerequisite for creating a more comprehensive Knowledge Graph (KG), involves pinpointing equivalent entities across disparate KGs. Contemporary methods for entity alignment have predominantly utilized knowledge…

Computation and Language · Computer Science 2024-01-31 Linyao Yang , Hongyang Chen , Xiao Wang , Jing Yang , Fei-Yue Wang , Han Liu