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Entity alignment (EA) is the task of identifying the entities that refer to the same real-world object but are located in different knowledge graphs (KGs). For entities to be aligned, existing EA solutions treat them separately and generate…

Computation and Language · Computer Science 2021-01-06 Weixin Zeng , Xiang Zhao , Jiuyang Tang , Xuemin Lin , Paul Groth

Entity alignment (EA) aims at finding equivalent entities in different knowledge graphs (KGs). Embedding-based approaches have dominated the EA task in recent years. Those methods face problems that come from the geometric properties of…

Databases · Computer Science 2022-06-07 Yunjun Gao , Xiaoze Liu , Junyang Wu , Tianyi Li , Pengfei Wang , Lu Chen

Entity alignment (EA) aims at identifying equivalent entity pairs across different knowledge graphs (KGs) that refer to the same real-world identity. To circumvent the shortage of seed alignments provided for training, recent EA models…

Artificial Intelligence · Computer Science 2025-07-03 Qijie Ding , Jie Yin , Daokun Zhang , Junbin Gao

Entity alignment (EA) is the task to discover entities referring to the same real-world object from different knowledge graphs (KGs), which is the most crucial step in integrating multi-source KGs. The majority of the existing…

Computation and Language · Computer Science 2021-03-02 Renbo Zhu , Meng Ma , Ping Wang

Knowledge graph (KG) alignment - the task of recognizing entities referring to the same thing in different KGs - is recognized as one of the most important operations in the field of KG construction and completion. However, existing…

Computation and Language · Computer Science 2022-03-16 Vinh Van Tong , Thanh Trung Huynh , Thanh Tam Nguyen , Hongzhi Yin , Quoc Viet Hung Nguyen , Quyet Thang Huynh

How to identify those equivalent entities between knowledge graphs (KGs), which is called Entity Alignment (EA), is a long-standing challenge. So far, many methods have been proposed, with recent focus on leveraging Deep Learning to solve…

Databases · Computer Science 2023-08-09 Nhat-Minh Dao , Thai V. Hoang , Zonghua Zhang

Entity alignment aims to identify equivalent entity pairs between different knowledge graphs (KGs). Recently, the availability of temporal KGs (TKGs) that contain time information created the need for reasoning over time in such TKGs.…

Artificial Intelligence · Computer Science 2022-03-15 Chengjin Xu , Fenglong Su , Jens Lehmann

The task of entity alignment between knowledge graphs (KGs) aims to identify every pair of entities from two different KGs that represent the same entity. Many machine learning-based methods have been proposed for this task. However, to our…

Computation and Language · Computer Science 2022-10-18 Rui Zhang , Xiaoyan Zhao , Bayu Distiawan Trisedya , Min Yang , Hong Cheng , Jianzhong Qi

Entity alignment (EA) seeks identical entities in different knowledge graphs, which is a long-standing task in the database research. Recent work leverages deep learning to embed entities in vector space and align them via nearest neighbor…

Computation and Language · Computer Science 2024-03-22 Xiaobin Tian , Zequn Sun , Wei Hu

Entity Alignment (EA) seeks to identify and match corresponding entities across different Knowledge Graphs (KGs), playing a crucial role in knowledge fusion and integration. Embedding-based entity alignment (EA) has recently gained…

Computation and Language · Computer Science 2024-12-09 Xuan Chen , Tong Lu , Zhichun Wang

Entity Alignment (EA) aims to match equivalent entities that refer to the same real-world objects and is a key step for Knowledge Graph (KG) fusion. Most neural EA models cannot be applied to large-scale real-life KGs due to their excessive…

Artificial Intelligence · Computer Science 2022-08-23 Bing Liu , Wen Hua , Guido Zuccon , Genghong Zhao , Xia Zhang

Entity alignment (EA) is a fundamental data integration task that identifies equivalent entities between different knowledge graphs (KGs). Temporal Knowledge graphs (TKGs) extend traditional knowledge graphs by introducing timestamps, which…

Information Retrieval · Computer Science 2023-02-09 Xiaoze Liu , Junyang Wu , Tianyi Li , Lu Chen , Yunjun Gao

Entity alignment (EA) aims to find equivalent entities in different knowledge graphs (KGs). State-of-the-art EA approaches generally use Graph Neural Networks (GNNs) to encode entities. However, most of them train the models and evaluate…

Computation and Language · Computer Science 2023-04-17 Junyang Wu , Tianyi Li , Lu Chen , Yunjun Gao , Ziheng Wei

The task of entity alignment between knowledge graphs (KGs) aims to identify every pair of entities from two different KGs that represent the same entity. Many machine learning-based methods have been proposed for this task. However, to our…

Information Retrieval · Computer Science 2023-11-14 Rui Zhang , Yixin Su , Bayu Distiawan Trisedya , Xiaoyan Zhao , Min Yang , Hong Cheng , Jianzhong Qi

The flourishing of knowledge graph applications has driven the need for entity alignment (EA) across KGs. However, the heterogeneity of practical KGs, characterized by differing scales, structures, and limited overlapping entities, greatly…

Machine Learning · Computer Science 2024-01-25 Xuhui Jiang , Chengjin Xu , Yinghan Shen , Yuanzhuo Wang , Fenglong Su , Fei Sun , Zixuan Li , Zhichao Shi , Jian Guo , Huawei Shen

Entity alignment typically suffers from the issues of structural heterogeneity and limited seed alignments. In this paper, we propose a novel Multi-channel Graph Neural Network model (MuGNN) to learn alignment-oriented knowledge graph (KG)…

Computation and Language · Computer Science 2019-08-28 Yixin Cao , Zhiyuan Liu , Chengjiang Li , Zhiyuan Liu , Juanzi Li , Tat-Seng Chua

Capturing associations for knowledge graphs (KGs) through entity alignment, entity type inference and other related tasks benefits NLP applications with comprehensive knowledge representations. Recent related methods built on Euclidean…

Computation and Language · Computer Science 2020-10-06 Zequn Sun , Muhao Chen , Wei Hu , Chengming Wang , Jian Dai , Wei Zhang

Entity alignment aims at integrating heterogeneous knowledge from different knowledge graphs. Recent studies employ embedding-based methods by first learning the representation of Knowledge Graphs and then performing entity alignment via…

Machine Learning · Computer Science 2022-01-28 Xinhang Li , Yong Zhang , Chunxiao Xing

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

Entity alignment is a crucial step in integrating knowledge graphs (KGs) from multiple sources. Previous attempts at entity alignment have explored different KG structures, such as neighborhood-based and path-based contexts, to learn entity…

Artificial Intelligence · Computer Science 2022-01-04 Kexuan Xin , Zequn Sun , Wen Hua , Wei Hu , Xiaofang Zhou