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Linked data-as-a-service: the semantic web redeployed

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Abstract
Ad-hoc querying is crucial to access information from Linked Data, yet publishing queryable RDF datasets on the Web is not a trivial exercise. The most compelling argument to support this claim is that the Web contains hundreds of thousands of data documents, while only 260 queryable SPARQL endpoints are provided. Even worse, the SPARQL endpoints we do have are often unstable, may not comply with the standards, and may differ in supported features. In other words, hosting data online is easy, but publishing Linked Data via a queryable API such as SPARQL appears to be too difficult. As a consequence, in practice, there is no single uniform way to query the LOD Cloud today. In this paper, we therefore combine a large-scale Linked Data publication project (LOD Laundromat) with a low-cost server-side interface (Triple Pattern Fragments), in order to bridge the gap between the Web of downloadable data documents and the Web of live queryable data. The result is a repeatable, low-cost, open-source data publication process. To demonstrate its applicability, we made over 650,000 data documents available as data APIs, consisting of 30 billion triples.
Keywords
API, Web Services, Data Publishing, Linked Data

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MLA
Rietveld, Laurens et al. “Linked Data-as-a-service: The Semantic Web Redeployed.” Lecture Notes in Computer Science. Vol. 9088. Berlin, Germany: SPRINGER-VERLAG BERLIN, 2015. 471–487. Print.
APA
Rietveld, L., Verborgh, R., Beek, W., Vander Sande, M., & Schlobach, S. (2015). Linked data-as-a-service: the semantic web redeployed. Lecture Notes in Computer Science (Vol. 9088, pp. 471–487). Presented at the 12th European Semantic Web Conference (ESWC), Berlin, Germany: SPRINGER-VERLAG BERLIN.
Chicago author-date
Rietveld, Laurens , Ruben Verborgh, Wouter Beek, Miel Vander Sande, and Stefan Schlobach. 2015. “Linked Data-as-a-service: The Semantic Web Redeployed.” In Lecture Notes in Computer Science, 9088:471–487. Berlin, Germany: SPRINGER-VERLAG BERLIN.
Chicago author-date (all authors)
Rietveld, Laurens , Ruben Verborgh, Wouter Beek, Miel Vander Sande, and Stefan Schlobach. 2015. “Linked Data-as-a-service: The Semantic Web Redeployed.” In Lecture Notes in Computer Science, 9088:471–487. Berlin, Germany: SPRINGER-VERLAG BERLIN.
Vancouver
1.
Rietveld L, Verborgh R, Beek W, Vander Sande M, Schlobach S. Linked data-as-a-service: the semantic web redeployed. Lecture Notes in Computer Science. Berlin, Germany: SPRINGER-VERLAG BERLIN; 2015. p. 471–87.
IEEE
[1]
L. Rietveld, R. Verborgh, W. Beek, M. Vander Sande, and S. Schlobach, “Linked data-as-a-service: the semantic web redeployed,” in Lecture Notes in Computer Science, Portoroz, Slovenia, 2015, vol. 9088, pp. 471–487.
@inproceedings{7035284,
  abstract     = {Ad-hoc querying is crucial to access information from Linked Data, yet publishing queryable RDF datasets on the Web is not a trivial exercise. The most compelling argument to support this claim is that the Web contains hundreds of thousands of data documents, while only 260 queryable SPARQL endpoints are provided. Even worse, the SPARQL endpoints we do have are often unstable, may not comply with the standards, and may differ in supported features. In other words, hosting data online is easy, but publishing Linked Data via a queryable API such as SPARQL appears to be too difficult. As a consequence, in practice, there is no single uniform way to query the LOD Cloud today. In this paper, we therefore combine a large-scale Linked Data publication project (LOD Laundromat) with a low-cost server-side interface (Triple Pattern Fragments), in order to bridge the gap between the Web of downloadable data documents and the Web of live queryable data. The result is a repeatable, low-cost, open-source data publication process. To demonstrate its applicability, we made over 650,000 data documents available as data APIs, consisting of 30 billion triples.},
  author       = {Rietveld, Laurens  and Verborgh, Ruben and Beek, Wouter and Vander Sande, Miel and Schlobach, Stefan},
  booktitle    = {Lecture Notes in Computer Science},
  isbn         = {978-3-319-18818-8;},
  issn         = {0302-9743},
  keywords     = {API,Web Services,Data Publishing,Linked Data},
  language     = {eng},
  location     = {Portoroz, Slovenia},
  pages        = {471--487},
  publisher    = {SPRINGER-VERLAG BERLIN},
  title        = {Linked data-as-a-service: the semantic web redeployed},
  url          = {http://dx.doi.org/10.1007/978-3-319-18818-8_29},
  volume       = {9088},
  year         = {2015},
}

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