改进的混合本体异构数据集成方法研究

Research on heterogeneous data integration with improved hybrid ontology method

针对混合本体结构在异构集成系统扩展性上的不足,在形式化描述数据源及其本体结构的基础上,分析了基于本体的数据源设计过程,提出了两种数据源集成操作来吸收自治数据源中的特化概念来扩展全局本体,并将数据源实例投影到全局本体。系统集成操作分析表明了该方法既保证数据源设计的自治性,又使得系统拥有良好的扩展性。

To resolve the problem that heterogeneous data integration system which used hybrid ontology approach lack of scalability,the database design process on an ontology-based formal structure of data source is analyzed and two types of integrated operations are introduced,which extend global ontology by adding their own concept specializations from local sources and project the instances of local sources onto the global ontology.The analysis of integrated operations is proved that the approach ensures the autonomy of databases design in local source and allows the system to have good scalability.