Mapping Relational Databases into Ontologies through a Graph-based Formal Model
One of key issues of the Semantic Web applications is the lack of semantic data (ontologies). Although the vast majority of data are stored in the popular relational databases, they are still not easily available for many next generation Web applications. Therefore, one of core challenges of Semantic Web is whether these applications can automatically retrieve semantic information from the existed relational databases. This paper proposes a middle graph-based formal model language, W-graph, a bridge between relational databases and ontologies, which abstracts semantic information from relational database instances semi-automatically and then generates an OWL ontology automatically. This method not only maps relational database schemata to ontologies, but also populates ontologies with data stored in databases. Moreover, a proof of semantic preserving on the mapping is provided, and a case study and an implemented prototype tool are also reported.
Shihan Yang Jinzhao Wu
IT Department of the Chengdu Branch of the National Science Library Chinese Academy of Sciences, Chi Beijing Jiaotong University, Beijing, China Guangxi University for Nationalities, Nanning, China
国际会议
Sixth International Conference on Semantics,Knowledge and Grids(第六届语义、知识与网格国际会议 SKG 2010)
宁波
英文
219-226
2010-11-01（万方平台首次上网日期，不代表论文的发表时间）