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  1. Proceedings of the 4th International Workshop on Semantic Web Information Management (SWIM '12)
  2. Towards benefit-based RDF source selection for SPARQL queries
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Automatic scaling of selective SPARQL joins using the TIRAMOLA system
Towards benefit-based RDF source selection for SPARQL queries
Pay-as-you-go data integration for linked data: opportunities, challenges and architectures
Named entity recognition and disambiguation using linked data and graph-based centrality scoring
To nest or not to nest, when and how much: representing intermediate results of graph pattern queries in MapReduce based processing
Type inference methods and performance for data in an RDBMS
A decentralized infrastructure for the efficient management of resources in the web of data
SPOVC: a scalable RDF store using horizontal partitioning and column oriented DBMS
SPARQL query answering with bitmap indexes
Abstract framework for social ontologies and folksonomized ontologies

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Towards benefit-based RDF source selection for SPARQL queries

Content Provider ACM Digital Library
Author Hose, Katja Schenkel, Ralf
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.
Starting Page 1
Ending Page 8
Page Count 8
File Format PDF
ISBN 9781450314466
DOI 10.1145/2237867.2237869
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2012-05-20
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Semantic web Sparql Rdf Distributed query processing
Content Type Text
Resource Type Article
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