Ontology matching (OM) enables semantic interoperability between different ontologies and resolves their conceptual heterogeneity by aligning related entities. OM systems currently have two prevailing design paradigms: conventional knowledge-based expert systems and newer machine learning-based predictive systems. While large language models (LLMs) and LLM agents have revolutionised data engineering and have been applied creatively in many domains, their potential for OM remains underexplored. This study introduces a novel agent-powered LLM-based design paradigm for OM systems. With consideration of several specific challenges in leveraging LLM agents for OM, we propose a generic framework, namely Agent-OM (Agent for Ontology Matching), consisting of two Siamese agents for retrieval and matching, with a set of OM tools. Our framework is implemented in a proof-of-concept system. Evaluations of three Ontology Alignment Evaluation Initiative (OAEI) tracks over state-of-the-art OM systems show that our system can achieve results very close to the long-standing best performance on simple OM tasks and can significantly improve the performance on complex and few-shot OM tasks.

翻译：本体匹配（Ontology Matching，OM）通过对齐相关实体，实现不同本体间的语义互操作，并解决其概念异构性。当前OM系统主要有两种主流设计范式：传统的基于知识的专家系统和较新的基于机器学习的预测系统。尽管大语言模型（LLMs）和LLM智能体已彻底变革数据工程，并在诸多领域得到创新性应用，但其在OM中的潜力仍未得到充分探索。本研究引入了一种新颖的、由智能体驱动的基于LLM的OM系统设计范式。考虑到利用LLM智能体进行OM所面临的若干具体挑战，我们提出了一个通用框架，即Agent-OM（用于本体匹配的智能体），该框架包含两个用于检索和匹配的孪生智能体，以及一组OM工具。我们在一个概念验证系统中实现了该框架。在三个本体对齐评估倡议（OAEI）任务上对现有先进OM系统的评估表明，我们的系统在简单OM任务上可以达到与长期保持的最佳性能非常接近的结果，并且能显著提升复杂和小样本OM任务的性能。