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HAHE: Hierarchical Attention for Hyper-Relational Knowledge Graphs in Global and Local Level

Haoran Luo, Haihong E, Yuhao Yang, Yikai Guo, Mingzhi Sun, Tianyu Yao, Zichen Tang, Kaiyang Wan, Meina Song, Wei Lin


Abstract
Link Prediction on Hyper-relational Knowledge Graphs (HKG) is a worthwhile endeavor. HKG consists of hyper-relational facts (H-Facts), composed of a main triple and several auxiliary attribute-value qualifiers, which can effectively represent factually comprehensive information. The internal structure of HKG can be represented as a hypergraph-based representation globally and a semantic sequence-based representation locally. However, existing research seldom simultaneously models the graphical and sequential structure of HKGs, limiting HKGs’ representation. To overcome this limitation, we propose a novel Hierarchical Attention model for HKG Embedding (HAHE), including global-level and local-level attention. The global-level attention can model the graphical structure of HKG using hypergraph dual-attention layers, while the local-level attention can learn the sequential structure inside H-Facts via heterogeneous self-attention layers. Experiment results indicate that HAHE achieves state-of-the-art performance in link prediction tasks on HKG standard datasets. In addition, HAHE addresses the issue of HKG multi-position prediction for the first time, increasing the applicability of the HKG link prediction task. Our code is publicly available.
Anthology ID:
2023.acl-long.450
Volume:
Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)
Month:
July
Year:
2023
Address:
Toronto, Canada
Editors:
Anna Rogers, Jordan Boyd-Graber, Naoaki Okazaki
Venue:
ACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
8095–8107
Language:
URL:
https://aclanthology.org/2023.acl-long.450
DOI:
10.18653/v1/2023.acl-long.450
Bibkey:
Cite (ACL):
Haoran Luo, Haihong E, Yuhao Yang, Yikai Guo, Mingzhi Sun, Tianyu Yao, Zichen Tang, Kaiyang Wan, Meina Song, and Wei Lin. 2023. HAHE: Hierarchical Attention for Hyper-Relational Knowledge Graphs in Global and Local Level. In Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), pages 8095–8107, Toronto, Canada. Association for Computational Linguistics.
Cite (Informal):
HAHE: Hierarchical Attention for Hyper-Relational Knowledge Graphs in Global and Local Level (Luo et al., ACL 2023)
Copy Citation:
PDF:
https://aclanthology.org/2023.acl-long.450.pdf
Video:
 https://aclanthology.org/2023.acl-long.450.mp4
Code
 lhrlab/hahe