RDF/RDFS-based Relational Database Integration

RDF/RDFS-based Relational Database Integration
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基于RDF/RDFS的关系数据库集成

DOI:
10.1109/icde.2006.127
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发表时间:
2006-04
期刊:
22nd International Conference on Data Engineering (ICDE'06)
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其他
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我们研究了通过RDF/RDFS本体回答查询的问题,给出了一个或多个关系模式和这个目标本体之间的一组基于视图的映射。特别地,我们考虑了一组RDFS语义约束,如rdfs:subClassof,rdfs:subPropertyof,rdfs:domain和rdfs:range,它们存在于RDF模型中,但既不是XML也不是关系模型。我们正式定义的查询语义在这样的集成方案,并设计了一个新的查询重写算法来实现的语义。在我们的方法中,我们强调了RDF空白节点在表示关系数据的不完整语义中所起的重要作用。介绍了一套支持RDF的关系数据集成的语义工具。该方法已用于中国中医研究院70个关系数据库的集成。
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.
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