SYSTEM OF ENTITY-RELATIONSHIP MODEL REFORMULATION OF SPARQL QUERY RESULTS ON RDF DATA AND THE METHOD

摘要

PURPOSE: A system for transforming an entity relation of an SPARQL query result about RDF data by using ontology schema information and a method thereof are provided to efficiently visualize a concept element by mapping the query result with an entity relation model. CONSTITUTION: A query result extracting module(210) extracts a query graph and a query result corresponding to a variable included in a query condition from an XML(eXtensible Markup Language)/RDF(Resource Description Framework) database system managing ontology schema data in an RDF type. A type generating module(220) generates a type of a query result by using a schema of the query result and the query graph. An inheritance module(230) determines a corresponding number for a relation of the type and performs inheritance to the relation to generate an entity relation model. [Reference numerals] (200) Entity-relation model based visualization system; (210) Query graph and result extracting module; (220) Type generating module; (230) Inheritance module; (240) Model reducing module; (250) Visualizing module; (260) Query result and entity-relation model storage unit; (300) XML/RDF database system; (AA) Query and query result schema extracting request; (BB) Query graph, query result, and schema information; (CC) Ontology schema + Instance