Introducing Wild-card and Negation for Optimizing SPARQL Queries based on Rewriting RDF Graph and SPARQL Queries

Faisal Alkhateeb

2016

Abstract

In this paper, we extend the SPARQL triple patterns to include two operators (the negation and the wild-card). We define the syntax and the semantics of these operators, in particular, when using them in the predicate position of SPARQL triple patterns. The use of the negation and wild-card operators and thus the semantics are different from the literature. Then, we show that these two operators could be used to enhance the evaluation performance of some SPARQL queries and to add extra expressiveness.

Paper Citation

in Harvard Style

Alkhateeb F. (2016). Introducing Wild-card and Negation for Optimizing SPARQL Queries based on Rewriting RDF Graph and SPARQL Queries . In Proceedings of the 12th International Conference on Web Information Systems and Technologies - Volume 2: WEBIST, ISBN 978-989-758-186-1, pages 181-187. DOI: 10.5220/0005762001810187

in Bibtex Style

@conference{webist16,
author={Faisal Alkhateeb},
title={Introducing Wild-card and Negation for Optimizing SPARQL Queries based on Rewriting RDF Graph and SPARQL Queries},
booktitle={Proceedings of the 12th International Conference on Web Information Systems and Technologies - Volume 2: WEBIST,},
year={2016},
pages={181-187},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005762001810187},
isbn={978-989-758-186-1},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 12th International Conference on Web Information Systems and Technologies - Volume 2: WEBIST,
TI - Introducing Wild-card and Negation for Optimizing SPARQL Queries based on Rewriting RDF Graph and SPARQL Queries
SN - 978-989-758-186-1
AU - Alkhateeb F.
PY - 2016
SP - 181
EP - 187
DO - 10.5220/0005762001810187