Knowledge Graph Alignment with Entity-Pair Embedding

Zhichun Wang, Jinjian Yang, Xiaoju Ye


Abstract
Knowledge Graph (KG) alignment is to match entities in different KGs, which is important to knowledge fusion and integration. Recently, a number of embedding-based approaches for KG alignment have been proposed and achieved promising results. These approaches first embed entities in low-dimensional vector spaces, and then obtain entity alignments by computations on their vector representations. Although continuous improvements have been achieved by recent work, the performances of existing approaches are still not satisfactory. In this work, we present a new approach that directly learns embeddings of entity-pairs for KG alignment. Our approach first generates a pair-wise connectivity graph (PCG) of two KGs, whose nodes are entity-pairs and edges correspond to relation-pairs; it then learns node (entity-pair) embeddings of the PCG, which are used to predict equivalent relations of entities. To get desirable embeddings, a convolutional neural network is used to generate similarity features of entity-pairs from their attributes; and a graph neural network is employed to propagate the similarity features and get the final embeddings of entity-pairs. Experiments on five real-world datasets show that our approach can achieve the state-of-the-art KG alignment results.
Anthology ID:
2020.emnlp-main.130
Volume:
Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP)
Month:
November
Year:
2020
Address:
Online
Editors:
Bonnie Webber, Trevor Cohn, Yulan He, Yang Liu
Venue:
EMNLP
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
1672–1680
Language:
URL:
https://aclanthology.org/2020.emnlp-main.130
DOI:
10.18653/v1/2020.emnlp-main.130
Bibkey:
Cite (ACL):
Zhichun Wang, Jinjian Yang, and Xiaoju Ye. 2020. Knowledge Graph Alignment with Entity-Pair Embedding. In Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP), pages 1672–1680, Online. Association for Computational Linguistics.
Cite (Informal):
Knowledge Graph Alignment with Entity-Pair Embedding (Wang et al., EMNLP 2020)
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PDF:
https://aclanthology.org/2020.emnlp-main.130.pdf
Video:
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