Research on Mapping Rules of MDR2023 Meta-Model to OWL and Its Application in Ontology Generation in the Petroleum Field
KeXin Zhai, JingShu Yuan, Wu Li, Man Yuan · 2025
The current construction of knowledge graphs in the petroleum industry faces issues of semantic heterogeneity and weak interoperability. As the schema layer of the knowledge graph, the complete and standardized ontology is the key to ensuring the quality of knowledge graphs. This paper first focuses on the semantic constraints added in the latest version of the MDR standard, expands and defines the mapping rules from MDR to OWL ontology, and establishes the bridge between metadata and ontology semantics. Secondly, this paper conducts an investigation and research on the relevant data models and standards in the petroleum field and performs semantic analysis on the relevant data elements from different perspectives. On this basis, an exploration and development metadata registration platform based on MDR was developed to achieve standardized registration and management of domain metadata and related semantics. Finally, based on the proposed mapping rules, the construction of the domain ontology is completed. This paper provides a reference for semantic management and ontology construction based on metadata in vertical domains, thereby facilitating the standardized construction of rich semantic knowledge graphs.