An Accurate Unsupervised Method for Joint Entity Alignment and Dangling Entity Detection

Shengxuan Luo, Sheng Yu


Abstract
Knowledge graph integration typically suffers from the widely existing dangling entities that cannot find alignment cross knowledge graphs (KGs). The dangling entity set is unavailable in most real-world scenarios, and manually mining the entity pairs that consist of entities with the same meaning is labor-consuming. In this paper, we propose a novel accurate Unsupervised method for joint Entity alignment (EA) and Dangling entity detection (DED), called UED. The UED mines the literal semantic information to generate pseudo entity pairs and globally guided alignment information for EA and then utilizes the EA results to assist the DED. We construct a medical cross-lingual knowledge graph dataset, MedED, providing data for both the EA and DED tasks. Extensive experiments demonstrate that in the EA task, UED achieves EA results comparable to those of state-of-the-art supervised EA baselines and outperforms the current state-of-the-art EA methods by combining supervised EA data. For the DED task, UED obtains high-quality results without supervision.
Anthology ID:
2022.findings-acl.183
Volume:
Findings of the Association for Computational Linguistics: ACL 2022
Month:
May
Year:
2022
Address:
Dublin, Ireland
Editors:
Smaranda Muresan, Preslav Nakov, Aline Villavicencio
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
2330–2339
Language:
URL:
https://aclanthology.org/2022.findings-acl.183
DOI:
10.18653/v1/2022.findings-acl.183
Bibkey:
Cite (ACL):
Shengxuan Luo and Sheng Yu. 2022. An Accurate Unsupervised Method for Joint Entity Alignment and Dangling Entity Detection. In Findings of the Association for Computational Linguistics: ACL 2022, pages 2330–2339, Dublin, Ireland. Association for Computational Linguistics.
Cite (Informal):
An Accurate Unsupervised Method for Joint Entity Alignment and Dangling Entity Detection (Luo & Yu, Findings 2022)
Copy Citation:
PDF:
https://aclanthology.org/2022.findings-acl.183.pdf
Software:
 2022.findings-acl.183.software.zip
Code
 luosx18/ued