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  Towards Benefit-Based RDF Source Selection for SPARQL Queries

Hose, K., & Schenkel, R. (2012). Towards Benefit-Based RDF Source Selection for SPARQL Queries. In SWIM '12 (pp. 2:1-2:8). New York, NY: ACM.

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 Creators:
Hose, Katja1, Author           
Schenkel, Ralf1, Author           
Affiliations:
1Databases and Information Systems, MPI for Informatics, Max Planck Society, ou_24018              

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 Abstract: The Linked Data cloud consists of a great variety of data provided by an increasing number of sources. Selecting relevant sources is therefore a core ingredient of efficient query processing. So far, this is either done with additional indexes or by iteratively performing lookups for relevant URIs. None of the existing methods takes additional aspects into account such as the degree of overlap between the sources, resulting in unnecessary requests. In this paper, we propose a sketch-based query routing strategy that takes source overlap into account. The proposed strategy uses sketches and can be tuned towards either retrieving as many results as possible for a given budget or minimizing the number of requests necessary to retrieve all or a certain fraction of the results. Our experiments show significant improvements over state-of-the-art but overlap-ignorant methods for source selection.

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Language(s): eng - English
 Dates: 2012
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 647457
DOI: 10.1145/2237867.2237869
URI: http://dx.doi.org/10.1145/2237867.2237869
Other: Local-ID: C1256DBF005F876D-DAAD136B50B0C0ECC12579E6004D6582-HoseSchenkel_SWIM2012
BibTex Citekey: HoseSchenkel_SWIM2012
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Title: 4th International Workshop on Semantic Web Information Management
Place of Event: Scottsdale, AZ
Start-/End Date: 2012-05-20 - 2012-05-20

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Title: SWIM '12
  Abbreviation : SWIM 2012
  Subtitle : Proceedings of the 4th International Workshop on Semantic Web Information Management
Source Genre: Proceedings
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Publ. Info: New York, NY : ACM
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 2:1 - 2:8 Identifier: ISBN: 978-1-4503-1446-6