RDF/RDFS-based Relational Database Integration

Author

Chen, Huajun ; Wu, Zhaohui ; Wang, Heng ; Mao, Yuxin

Author_Institution

Zhejiang University, China

fYear

2006

Firstpage

94

Lastpage

94

Abstract

We study the problem of answering queries through a RDF/RDFS ontology, given a set of view-based mappings between one or more relational schemas and this target ontology. Particularly, we consider a set of RDFS semantic constraints such as rdfs:subClassof, rdfs:subPropertyof, rdfs:domain, and rdfs:range, which are present in RDF model but neither XML nor relational models. We formally define the query semantics in such an integration scenario, and design a novel query rewriting algorithm to implement the semantics. On our approach, we highlight the important role played by RDF Blank Node in representing incomplete semantics of relational data. A set of semantic tools supporting relational data integration by RDF are also introduced. The approach have been used to integrate 70 relational databases at China Academy of Traditional Chinese Medicine.

Keywords

Algorithm design and analysis; Computer science; Data engineering; Educational institutions; Natural languages; Ontologies; Relational databases; Resource description framework; Semantic Web; XML;

fLanguage

English

Publisher

ieee

Conference_Titel

Data Engineering, 2006. ICDE '06. Proceedings of the 22nd International Conference on

Print_ISBN

0-7695-2570-9

Type

conf

DOI

10.1109/ICDE.2006.127

Filename

1617462