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http://dx.doi.org/10.5392/JKCA.2014.14.10.438

Navigator for OWL Ontologies Generated from Relational Databases  

Choi, Ji Woong (숭실대학교 컴퓨터학부)
Kim, Myung Ho (숭실대학교 컴퓨터학부)
Publication Information
The Journal of the Korea Contents Association / v.14, no.10, 2014 , pp. 438-453 More about this Journal
Abstract
This paper proposes a system to translate an RDB into an OWL ontology which enables the users to navigate the ontology in GUI. In order to accomplish the goals mentioned previously, the system overcame two difficulties. First, our system defines a new mapping algorithm to map between DB elements and ontology ones. Comparing with existing solutions, our algorithm is able to generate ontologies from more DB structures. Second, our system provides the same data generated by a reasoner to the users. Note that this operation does not load ABox ontology on a reasoner. In addition, Tableau-based reasoners have the tractability problem on a large ABox (e.g., large ABoxes translated from DBs practically cannot be served). To solve this, our system internally runs SQL queries to retrieve the same data as the one from a reasoner every time ABox elements are queried.
Keywords
Semantic Web; OWL; Relational Database; RDF; Ontology; Reasoning;
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