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http://dx.doi.org/10.9708/jksci.2015.20.3.029

SPARQL-DL Processor to Extract OWL Ontologies from Relational Databases  

Choi, Ji-Woong (School of Computer Science and Engineering, Soongsil University)
Kim, Myung-Ho (School of Computer Science and Engineering, Soongsil University)
Publication Information
Journal of the Korea Society of Computer and Information / v.20, no.3, 2015 , pp. 29-45 More about this Journal
Abstract
This paper proposes an implementation of SPARQL-DL, which is a query language for OWL ontologies, for query-answering over the OWL ontologies virtually generated from existing RDBs. The proposed SPARQL-DL processor internally translates input SPARQL-DL queries into SQL queries and then executes the translated queries. There are two advantages in the query processing method. First, another repository to store OWL ontologies generated from RDBs is not required. Second, a large ABox generated from an RDB instance is able to be served without using Tableau algorithm based reasoners which have a problem in large ABox reasoning. Our algorithm for query rewriting is designed to create one corresponding SQL query from one input SPARQL-DL query to minimize the overhead by establishing connections with RDBs.
Keywords
SPARQL-DL; SPARQL; Semantic Web; OWL; Relational Database; RDF; Ontology;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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