Publication Type
Conference Proceeding Article
Version
acceptedVersion
Publication Date
10-2022
Abstract
Self-supervised entity alignment (EA) aims to link equivalent entities across different knowledge graphs (KGs) without the use of pre-aligned entity pairs. The current state-of-the-art (SOTA) selfsupervised EA approach draws inspiration from contrastive learning, originally designed in computer vision based on instance discrimination and contrastive loss, and suffers from two shortcomings. Firstly, it puts unidirectional emphasis on pushing sampled negative entities far away rather than pulling positively aligned pairs close, as is done in the well-established supervised EA. Secondly, it advocates the minimum information requirement for self-supervised EA, while we argue that self-described KG’s side information (e.g., entity name, relation name, entity description) shall preferably be explored to the maximum extent for the self-supervised EA task. In this work, we propose an interactive contrastive learning model for self-supervised EA. It conducts bidirectional contrastive learning via building pseudo-aligned entity pairs as pivots to achieve direct cross-KG information interaction. It further exploits the integration of entity textual and structural information and elaborately designs encoders for better utilization in the self-supervised setting. Experimental results show that our approach outperforms the previous best self-supervised method by a large margin (over 9% Hits@1 absolute improvement on average) and performs on par with previous SOTA supervised counterparts, demonstrating the effectiveness of the interactive contrastive learning for self-supervised EA. The code and data are available at https://github.com/THU-KEG/ICLEA.
Keywords
Knowledge Graph, Entity Alignment, Self-Supervised Learning, Contrastive Learning
Discipline
Databases and Information Systems | Graphics and Human Computer Interfaces
Research Areas
Data Science and Engineering
Publication
Proceedings of the 31st ACM International Conference on Information and Knowledge Management, Atlanta, Georgia, 2022 October 17-21
First Page
2465
Last Page
2475
ISBN
9781450392365
Identifier
10.1145/3511808.3557364
Publisher
ACM
City or Country
Atlanta, Georgia
Citation
ZENG, Kaisheng; DONG, Zhenhao; HOU, Lei; CAO, Yixin; HU, Minghao; YU, Jifan; LV, Xin; CAO, Lei; WANG, Xin; LIU, Haozhuang; HUANG, Yi; WAN, Jing; and LI, Juanzi.
Interactive contrastive learning for self-supervised entity alignment. (2022). Proceedings of the 31st ACM International Conference on Information and Knowledge Management, Atlanta, Georgia, 2022 October 17-21. 2465-2475.
Available at: https://ink.library.smu.edu.sg/sis_research/7452
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Additional URL
https://doi.org/10.1145/3511808.3557364
Included in
Databases and Information Systems Commons, Graphics and Human Computer Interfaces Commons