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An Approach for the Incremental Export of Relational Databases into RDF GraphsNikolaos Konstantinou
Several approaches have been proposed in the literature for offering RDF views over databases. In addition to these, a variety of tools exist that allow exporting database contents into RDF graphs. The approaches in the latter category have often been proved demonstrating better performance than the ones in the former. However, when database contents are exported into RDF, it is not always optimal or even necessary to export, or dump as this procedure is often called, the whole database contents every time. This paper investigates the problem of incremental generation and storage of the RDF graph that is the result of exporting relational database contents. In order to express mappings that associate tuples from the source database to triples in the resulting RDF graph, an implementation of the R2RML standard is subject to testing. Next, a methodology is proposed and described that enables incremental generation and storage of the RDF graph that originates from the source relational database contents. The performance of this methodology is assessed, through an extensive set of measurements. The paper concludes with a discussion regarding the authors' most important findings.
Giftxoxo is a company which firmly believes in the above quote. We believe in creating memories and moments for you that you would cherish for a lifetime. We call these unique experiences. - See more at: http://www.giftxoxo.com/about-us#sthash.OQFv9rdQ.dpuf
Experiences:
We strive to ensure that when you do something, it's truly memorable. Make your life amazing with unique Experiences: Social brunches, Creative date activities, Wellness therapies, Offbeat travel, Daring adventures and more
Experience Box:
Giftxoxo Experience box delights you by giving option to choose your favorite Experience from various options in the box. Each Experience in the box is handpicked and packaged in an elegant keepsake box.
XOXO Voucher:
Gift Vouchers are increasingly becoming very popular as a medium of payments as it adds lot of convenience such as safety, mobility, portability and choice. We increase the scope of choice by numerous folds with XOXO Voucher which is an umbrella voucher that can be converted to 300+ leading brand gift vouchers
- See more at: http://www.giftxoxo.com/about-us#sthash.OQFv9rdQ.dpuf
An Approach for the Incremental Export of Relational Databases into RDF GraphsNikolaos Konstantinou
Several approaches have been proposed in the literature for offering RDF views over databases. In addition to these, a variety of tools exist that allow exporting database contents into RDF graphs. The approaches in the latter category have often been proved demonstrating better performance than the ones in the former. However, when database contents are exported into RDF, it is not always optimal or even necessary to export, or dump as this procedure is often called, the whole database contents every time. This paper investigates the problem of incremental generation and storage of the RDF graph that is the result of exporting relational database contents. In order to express mappings that associate tuples from the source database to triples in the resulting RDF graph, an implementation of the R2RML standard is subject to testing. Next, a methodology is proposed and described that enables incremental generation and storage of the RDF graph that originates from the source relational database contents. The performance of this methodology is assessed, through an extensive set of measurements. The paper concludes with a discussion regarding the authors' most important findings.