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Entity alignment (EA) aims to discover the equivalent entities in different knowledge graphs (KGs), which play an important role in knowledge engineering. Recently, EA with dangling entities has been proposed as a more realistic setting,…

Computation and Language · Computer Science 2023-04-11 Jin Xu , Yangning Li , Xiangjin Xie , Yinghui Li , Niu Hu , Haitao Zheng , Yong Jiang

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 is a basic and vital technique in knowledge graph (KG) integration. Over the years, research on entity alignment has resided on the assumption that KGs are static, which neglects the nature of growth of real-world KGs. As…

Computation and Language · Computer Science 2022-07-26 Yuxin Wang , Yuanning Cui , Wenqiang Liu , Zequn Sun , Yiqiao Jiang , Kexin Han , Wei Hu

Entity alignment is the task of linking entities with the same real-world identity from different knowledge graphs (KGs), which has been recently dominated by embedding-based methods. Such approaches work by learning KG representations so…

Computation and Language · Computer Science 2019-08-23 Yuting Wu , Xiao Liu , Yansong Feng , Zheng Wang , Rui Yan , Dongyan Zhao

We study the problem of embedding-based entity alignment between knowledge graphs (KGs). Previous works mainly focus on the relational structure of entities. Some further incorporate another type of features, such as attributes, for…

Artificial Intelligence · Computer Science 2019-06-07 Qingheng Zhang , Zequn Sun , Wei Hu , Muhao Chen , Lingbing Guo , Yuzhong Qu

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 (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

Joint representation learning over multi-sourced knowledge graphs (KGs) yields transferable and expressive embeddings that improve downstream tasks. Entity alignment (EA) is a critical step in this process. Despite recent considerable…

Machine Learning · Computer Science 2023-06-06 Zequn Sun , Jiacheng Huang , Xiaozhou Xu , Qijin Chen , Weijun Ren , Wei Hu

Entity alignment (EA) merges knowledge graphs (KGs) by identifying the equivalent entities in different graphs, which can effectively enrich knowledge representations of KGs. However, in practice, different KGs often include dangling…

Computation and Language · Computer Science 2022-06-29 Shengxuan Luo , Pengyu Cheng , Sheng Yu

Knowledge Graph Alignment (KGA) aims to integrate knowledge from multiple sources to address the limitations of individual Knowledge Graphs (KGs) in terms of coverage and depth. However, current KGA models fall short in achieving a…

Computation and Language · Computer Science 2024-07-26 Xiaohan Fang , Chaozhuo Li , Yi Zhao , Qian Zang , Litian Zhang , Jiquan Peng , Xi Zhang , Jibing Gong

Knowledge is captured in the form of entities and their relationships and stored in knowledge graphs. Knowledge graphs enhance the capabilities of applications in many different areas including Web search, recommendation, and natural…

Machine Learning · Computer Science 2021-03-31 Kalpa Gunaratna , Yu Wang , Hongxia Jin

Multilingual knowledge graph (KG) embeddings provide latent semantic representations of entities and structured knowledge with cross-lingual inferences, which benefit various knowledge-driven cross-lingual NLP tasks. However, precisely…

Artificial Intelligence · Computer Science 2018-06-19 Muhao Chen , Yingtao Tian , Kai-Wei Chang , Steven Skiena , Carlo Zaniolo

Entity linking - connecting entity mentions in a natural language utterance to knowledge graph (KG) entities is a crucial step for question answering over KGs. It is often based on measuring the string similarity between the entity label…

Computation and Language · Computer Science 2020-02-27 Rostislav Nedelchev , Debanjan Chaudhuri , Jens Lehmann , Asja Fischer

Embedding-based methods have attracted increasing attention in recent entity alignment (EA) studies. Although great promise they can offer, there are still several limitations. The most notable is that they identify the aligned entities…

Artificial Intelligence · Computer Science 2022-03-08 Lingbing Guo , Yuqiang Han , Qiang Zhang , Huajun Chen

Entity Alignment (EA), which aims to detect entity mappings (i.e. equivalent entity pairs) in different Knowledge Graphs (KGs), is critical for KG fusion. Neural EA methods dominate current EA research but still suffer from their reliance…

Computation and Language · Computer Science 2022-11-30 Bing Liu , Tiancheng Lan , Wen Hua , Guido Zuccon

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…

Databases · Computer Science 2023-06-08 Nikolaos Fanourakis , Vasilis Efthymiou , Dimitris Kotzinos , Vassilis Christophides

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

Entity Alignment (EA) has attracted widespread attention in both academia and industry, which aims to seek entities with same meanings from different Knowledge Graphs (KGs). There are substantial multi-step relation paths between entities…

Computation and Language · Computer Science 2022-08-09 Weishan Cai , Wenjun Ma , Jieyu Zhan , Yuncheng Jiang

Entity alignment (EA) is critical for knowledge graph (KG) fusion. Existing EA models lack transferability and are incapable of aligning unseen KGs without retraining. While using graph foundation models (GFMs) offer a solution, we find…

Machine Learning · Computer Science 2026-05-15 Yuanning Cui , Zequn Sun , Wei Hu , Kexuan Xin , Zhangjie Fu

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