Towards Multi-Relational Multi-Hop Reasoning over Dense Temporal Knowledge Graphs

Jian Liu, Zihe Liu, Xueqiang Lyu, Peng Jin, Jinan Xu


Abstract
Temporal knowledge graph reasoning has emerged as a crucial task for answering time-dependent questions within a knowledge graph (KG).Despite tremendous progress, the present research is impeded by the sparsity of a temporal KG and an over-reliance on simple single-relational reasoning patterns. To overcome these challenges, we introduce MulQuestions, a new temporal KG reasoning benchmark featuring over 200k entities and 960k questions designed to facilitate complex, multi-relational and multi-hop reasoning. Additionally, we propose a new model adept at conducting pattern-aware and time-sensitive reasoning across temporal KGs. The model’s efficacy is confirmed through rigorous evaluations, showcasing its effectiveness in sparse data conditions and adeptness at handling questions with long reasoning chains. We have made our benchmark and model publicly accessible at [https://anonymous].
Anthology ID:
2024.findings-acl.853
Volume:
Findings of the Association for Computational Linguistics: ACL 2024
Month:
August
Year:
2024
Address:
Bangkok, Thailand
Editors:
Lun-Wei Ku, Andre Martins, Vivek Srikumar
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
14367–14378
Language:
URL:
https://aclanthology.org/2024.findings-acl.853
DOI:
10.18653/v1/2024.findings-acl.853
Bibkey:
Cite (ACL):
Jian Liu, Zihe Liu, Xueqiang Lyu, Peng Jin, and Jinan Xu. 2024. Towards Multi-Relational Multi-Hop Reasoning over Dense Temporal Knowledge Graphs. In Findings of the Association for Computational Linguistics: ACL 2024, pages 14367–14378, Bangkok, Thailand. Association for Computational Linguistics.
Cite (Informal):
Towards Multi-Relational Multi-Hop Reasoning over Dense Temporal Knowledge Graphs (Liu et al., Findings 2024)
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PDF:
https://aclanthology.org/2024.findings-acl.853.pdf