基于地质空间数据库的OWL本体转换方法

Geological ontology construction based on geological database is an important method to share information in geology domain. According to relational schema of geological database, a conversion approach was presented to convert geological spatial database to OWL-based geological ontology, which is based on identifying semantics such as entities, relationships, single inheritance relationship, multiple inheritance relationship, nest relationship, cluster relationship and cardinality constraints. The semantic integrity of before and after transformation was verified by inverse mapping process. The heritance and union operation between superclass and subclass was ulitized to convert the nest relationship in geochronology, the multiple inheritance relationship to the concepts relationships in geological ontology. A concrete example of conversion from borehole database to geological ontology verified the validity of the proposed method in this paper.