Creating an RDF Graph from a Relational Database Using SPARQL

Creating an RDF Graph from a Relational Database Using SPARQL

Generating of RDF graph from a relational database using Jena API

a great part of the existing data on the web is stored in relational databases (RDB). However, the transition from the traditional web to Semantic web requires new structuring of these data. In this context we propose a method which allows automatic extraction of data from RDB and their restructuring in the form of RDF graphs using the Jena API to make them available for the Semantic Web. This ...

Implementing Graph Transformation Languages using RDF Storage and SPARQL Queries

The Resource Description Framework (RDF) format has seen signficant interest from industry as a flexible format for graph representation. However, RDF has so far not been widely used in the context of graph rewriting tools. In this paper, we take AToMPM, our research-oriented meta-modelling and graph rewriting tool and extend it by adding RDF-based graph transformation functionality. We address...

A Path-based Relational RDF Database

We propose a path-based scheme for storage and retrieval of RDF data using a relational database. The Semantic Web is much anticipated as the nextgeneration web where high-level processing of web resources are enabled by underlying metadata described in RDF format. A typical application of RDF is to describe ontologies or dictionaries, but in such applications, the size of RDF data is large. As...

Graph Analytics using the Vertica Relational Database

Graph analytics is becoming increasingly popular, with a deluge of new systems for graph analytics having been proposed in the past few years. These systems often start from the assumption that a new storage or query processing system is needed, in spite of graph data being often collected and stored in a relational database in the first place. In this paper, we study Vertica relational databas...