Ontology-Enhanced Knowledge Graph Completion using Large Language Models

Fuente: arXiv
Saved in:
Bibliographic Details
Main Authors: Guo, Wenbin, Wang, Xin, Chen, Jiaoyan, Li, Zhao, Chen, Zirui
Format: Preprint
Published: 2025
Subjects:
Online Access:
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1866912661966422016
author Guo, Wenbin
Wang, Xin
Chen, Jiaoyan
Li, Zhao
Chen, Zirui
author_facet Guo, Wenbin
Wang, Xin
Chen, Jiaoyan
Li, Zhao
Chen, Zirui
contents Large Language Models (LLMs) have been extensively adopted in Knowledge Graph Completion (KGC), showcasing significant research advancements. However, as black-box models driven by deep neural architectures, current LLM-based KGC methods rely on implicit knowledge representation with parallel propagation of erroneous knowledge, thereby hindering their ability to produce conclusive and decisive reasoning outcomes. We aim to integrate neural-perceptual structural information with ontological knowledge, leveraging the powerful capabilities of LLMs to achieve a deeper understanding of the intrinsic logic of the knowledge. We propose an ontology enhanced KGC method using LLMs -- OL-KGC. It first leverages neural perceptual mechanisms to effectively embed structural information into the textual space, and then uses an automated extraction algorithm to retrieve ontological knowledge from the knowledge graphs (KGs) that needs to be completed, which is further transformed into a textual format comprehensible to LLMs for providing logic guidance. We conducted extensive experiments on three widely-used benchmarks -- FB15K-237, UMLS and WN18RR. The experimental results demonstrate that OL-KGC significantly outperforms existing mainstream KGC methods across multiple evaluation metrics, achieving state-of-the-art performance.
format Preprint
id arxiv_https___arxiv_org_abs_2507_20643
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Ontology-Enhanced Knowledge Graph Completion using Large Language Models
Guo, Wenbin
Wang, Xin
Chen, Jiaoyan
Li, Zhao
Chen, Zirui
Computation and Language
Artificial Intelligence
Large Language Models (LLMs) have been extensively adopted in Knowledge Graph Completion (KGC), showcasing significant research advancements. However, as black-box models driven by deep neural architectures, current LLM-based KGC methods rely on implicit knowledge representation with parallel propagation of erroneous knowledge, thereby hindering their ability to produce conclusive and decisive reasoning outcomes. We aim to integrate neural-perceptual structural information with ontological knowledge, leveraging the powerful capabilities of LLMs to achieve a deeper understanding of the intrinsic logic of the knowledge. We propose an ontology enhanced KGC method using LLMs -- OL-KGC. It first leverages neural perceptual mechanisms to effectively embed structural information into the textual space, and then uses an automated extraction algorithm to retrieve ontological knowledge from the knowledge graphs (KGs) that needs to be completed, which is further transformed into a textual format comprehensible to LLMs for providing logic guidance. We conducted extensive experiments on three widely-used benchmarks -- FB15K-237, UMLS and WN18RR. The experimental results demonstrate that OL-KGC significantly outperforms existing mainstream KGC methods across multiple evaluation metrics, achieving state-of-the-art performance.
title Ontology-Enhanced Knowledge Graph Completion using Large Language Models
topic Computation and Language
Artificial Intelligence
url https://arxiv.org/abs/2507.20643