Strategies for executing federated queries in SPARQL1.1

Carlos Bruil-Aranda; Axel Polleres; Jürgen Umbrich

doi:10.1007/978-3-319-11915-1_25

Strategies for executing federated queries in SPARQL1.1

Carlos Bruil-Aranda, Axel Polleres, Jürgen Umbrich

Data, Process and Knowledge Management (Polleres)

Publikation: Beitrag in Buch/Konferenzband › Beitrag in Konferenzband

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Abstract

A common way for exposing RDF data on the Web is by means of
SPARQL endpoints which allow end users and applications to query just the
RDF data they want. However, servers hosting SPARQL endpoints often restrict
access to the data by limiting the amount of results returned per query or the
amount of queries per time that a client may issue. As this may affect query
completeness when using SPARQL1.1's federated query extension, we analysed
different strategies to implement federated queries with the goal to circumvent
endpoint limits. We show that some seemingly intuitive methods for decomposing
federated queries provide unsound results in the general case, and provide
fixes or discuss under which restrictions these recipes are still applicable. Finally,
we evaluate the proposed strategies for checking their feasibility in practice.

Originalsprache	Englisch
Titel des Sammelwerks	Proceedings of the 13th International Semantic Web Conference (ISWC 2014)
Herausgeber*innen	Springer International Publishing AG
Erscheinungsort	Riva del Garda, Italy
Verlag	Springer International Publishing AG
Seiten	390 - 405
Auflage	Lecture Notes in Computer Science book series (LNCS, volume 8797
ISBN (Print)	978-3-319-11915-1
DOIs	https://doi.org/10.1007/978-3-319-11915-1_25
Publikationsstatus	Veröffentlicht - 2014

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Zitat

Bruil-Aranda, C., Polleres, A., & Umbrich, J. (2014). Strategies for executing federated queries in SPARQL1.1. in Springer International Publishing AG (Hrsg.), Proceedings of the 13th International Semantic Web Conference (ISWC 2014) (Lecture Notes in Computer Science book series (LNCS, volume 8797 Aufl., S. 390 - 405). Springer International Publishing AG. https://doi.org/10.1007/978-3-319-11915-1_25

Bruil-Aranda, Carlos ; Polleres, Axel ; Umbrich, Jürgen. / Strategies for executing federated queries in SPARQL1.1. Proceedings of the 13th International Semantic Web Conference (ISWC 2014). Hrsg. / Springer International Publishing AG. Lecture Notes in Computer Science book series (LNCS, volume 8797. Aufl. Riva del Garda, Italy : Springer International Publishing AG, 2014. S. 390 - 405

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title = "Strategies for executing federated queries in SPARQL1.1",

abstract = "A common way for exposing RDF data on the Web is by means of SPARQL endpoints which allow end users and applications to query just the RDF data they want. However, servers hosting SPARQL endpoints often restrict access to the data by limiting the amount of results returned per query or the amount of queries per time that a client may issue. As this may affect query completeness when using SPARQL1.1's federated query extension, we analysed different strategies to implement federated queries with the goal to circumvent endpoint limits. We show that some seemingly intuitive methods for decomposing federated queries provide unsound results in the general case, and provide fixes or discuss under which restrictions these recipes are still applicable. Finally, we evaluate the proposed strategies for checking their feasibility in practice.",

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Bruil-Aranda, C, Polleres, A & Umbrich, J 2014, Strategies for executing federated queries in SPARQL1.1. in Springer International Publishing AG (Hrsg.), Proceedings of the 13th International Semantic Web Conference (ISWC 2014). Lecture Notes in Computer Science book series (LNCS, volume 8797 Aufl., Springer International Publishing AG, Riva del Garda, Italy, S. 390 - 405. https://doi.org/10.1007/978-3-319-11915-1_25

Strategies for executing federated queries in SPARQL1.1. / Bruil-Aranda, Carlos; Polleres, Axel; Umbrich, Jürgen.
Proceedings of the 13th International Semantic Web Conference (ISWC 2014). Hrsg. / Springer International Publishing AG. Lecture Notes in Computer Science book series (LNCS, volume 8797. Aufl. Riva del Garda, Italy: Springer International Publishing AG, 2014. S. 390 - 405.

Publikation: Beitrag in Buch/Konferenzband › Beitrag in Konferenzband

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AU - Umbrich, Jürgen

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AB - A common way for exposing RDF data on the Web is by means of SPARQL endpoints which allow end users and applications to query just the RDF data they want. However, servers hosting SPARQL endpoints often restrict access to the data by limiting the amount of results returned per query or the amount of queries per time that a client may issue. As this may affect query completeness when using SPARQL1.1's federated query extension, we analysed different strategies to implement federated queries with the goal to circumvent endpoint limits. We show that some seemingly intuitive methods for decomposing federated queries provide unsound results in the general case, and provide fixes or discuss under which restrictions these recipes are still applicable. Finally, we evaluate the proposed strategies for checking their feasibility in practice.

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Bruil-Aranda C, Polleres A, Umbrich J. Strategies for executing federated queries in SPARQL1.1. in Springer International Publishing AG, Hrsg., Proceedings of the 13th International Semantic Web Conference (ISWC 2014). Lecture Notes in Computer Science book series (LNCS, volume 8797 Aufl. Riva del Garda, Italy: Springer International Publishing AG. 2014. S. 390 - 405 doi: 10.1007/978-3-319-11915-1_25