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From Chain to Tree: Refining Chain-like Rules into Tree-like Rules on Knowledge Graphs

Author:
Wangtao Sun, Shizhu He, Jun Zhao, Kang Liu
Keyword:
Computer Science, Artificial Intelligence, Artificial Intelligence (cs.AI)
journal:
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date:
2024-03-08 00:00:00
Abstract
With good explanatory power and controllability, rule-based methods play an important role in many tasks such as knowledge reasoning and decision support. However, existing studies primarily focused on learning chain-like rules, which limit their semantic expressions and accurate prediction abilities. As a result, chain-like rules usually fire on the incorrect grounding values, producing inaccurate or even erroneous reasoning results. In this paper, we propose the concept of tree-like rules on knowledge graphs to expand the application scope and improve the reasoning ability of rule-based methods. Meanwhile, we propose an effective framework for refining chain-like rules into tree-like rules. Experimental comparisons on four public datasets show that the proposed framework can easily adapt to other chain-like rule induction methods and the refined tree-like rules consistently achieve better performances than chain-like rules on link prediction. The data and code of this paper can be available at https://anonymous.4open.science/r/tree-rule-E3CD/.
PDF: From Chain to Tree: Refining Chain-like Rules into Tree-like Rules on Knowledge Graphs.pdf
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