Using D2RQ and Ontop to publish relational database as Linked Data

Abstract

Having dataset in relational database published and accessed on the Web of Data is a hot issue. In this paper, we present implementation of publishing relational database as Linked Data with two open-source platforms, particularly D2RQ and Ontop. Both platforms provide their own way to translate databases into RDF Graphs. However, in case of querying data, Ontop shows much better performance than D2RQ.