Few-Shot Multi-Hop Relation Reasoning over Knowledge Bases

Chuxu Zhang, Lu Yu, Mandana Saebi, Meng Jiang, Nitesh Chawla


Abstract
Multi-hop relation reasoning over knowledge base is to generate effective and interpretable relation prediction through reasoning paths. The current methods usually require sufficient training data (fact triples) for each query relation, impairing their performances over few-shot relations (with limited triples) which are common in knowledge base. To this end, we propose FIRE, a novel few-shot multi-hop relation learning model. FIRE applies reinforcement learning to model the sequential steps of multi-hop reasoning, besides performs heterogeneous structure encoding and knowledge-aware search space pruning. The meta-learning technique is employed to optimize model parameters that could quickly adapt to few-shot relations. Empirical study on two datasets demonstrate that FIRE outperforms state-of-the-art methods.
Anthology ID:
2020.findings-emnlp.51
Volume:
Findings of the Association for Computational Linguistics: EMNLP 2020
Month:
November
Year:
2020
Address:
Online
Editors:
Trevor Cohn, Yulan He, Yang Liu
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
580–585
Language:
URL:
https://aclanthology.org/2020.findings-emnlp.51
DOI:
10.18653/v1/2020.findings-emnlp.51
Bibkey:
Cite (ACL):
Chuxu Zhang, Lu Yu, Mandana Saebi, Meng Jiang, and Nitesh Chawla. 2020. Few-Shot Multi-Hop Relation Reasoning over Knowledge Bases. In Findings of the Association for Computational Linguistics: EMNLP 2020, pages 580–585, Online. Association for Computational Linguistics.
Cite (Informal):
Few-Shot Multi-Hop Relation Reasoning over Knowledge Bases (Zhang et al., Findings 2020)
Copy Citation:
PDF:
https://aclanthology.org/2020.findings-emnlp.51.pdf
Data
NELL-995