Distributing XML with focus on parallel evaluation

Graf, Sebastian; Kramis, Marc; Waldvogel, Marcel

Distributing XML with focus on parallel evaluation

Dateien

graf.pdfGröße: 246.91 KBDownloads: 221

Datum

2008

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Informatik und Informationswissenschaft

Publikationstyp

Beitrag zu einem Konferenzband

Publikationsstatus

Published

Erschienen in

Databases, Information Systems, and Peer-to-Peer Computing, Sixth International Workshops, DBISP2P 2008, Auckland, New Zealand, August 23, 2008. 2008

Zusammenfassung

In contrast to relational databases the distribution of document-centric XML is not well researched. While there are some suggestions on how to split and distribute large XML documents, these approaches do not consider the parallel query evaluation. In this paper, we present and compare five different algorithms to search after suitable split nodes in a large XML document. We then describe how to distribute extractable sub-structures over a fixed number of peers and how to query these peers in parallel to retrieve the final result. In addition, we analyse the impact of our splitting algorithms with respect to scalability for two different XPath expression classes on three well-known XML data sets. We conclude this paper with an outlook on future work, including result ordering during parallel query execution and dynamic re-distribution of XML fragments to new peers due to updates.

Fachgebiet (DDC)

004 Informatik

Konferenz

DBISP2P, 23. Aug. 2008, Auckland, New Zealand

Zitieren

ISO 690

GRAF, Sebastian, Marc KRAMIS, Marcel WALDVOGEL, 2008. Distributing XML with focus on parallel evaluation. DBISP2P. Auckland, New Zealand, 23. Aug. 2008. In: Databases, Information Systems, and Peer-to-Peer Computing, Sixth International Workshops, DBISP2P 2008, Auckland, New Zealand, August 23, 2008. 2008

BibTex

@inproceedings{Graf2008Distr-5788,
  year={2008},
  title={Distributing XML with focus on parallel evaluation},
  booktitle={Databases, Information Systems, and Peer-to-Peer Computing, Sixth International Workshops, DBISP2P 2008, Auckland, New Zealand, August 23, 2008},
  author={Graf, Sebastian and Kramis, Marc and Waldvogel, Marcel}
}

RDF

<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/5788">
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T16:00:06Z</dc:date>
    <dc:contributor>Waldvogel, Marcel</dc:contributor>
    <dc:contributor>Kramis, Marc</dc:contributor>
    <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/5788"/>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by-nc-nd/2.0/"/>
    <dcterms:abstract xml:lang="eng">In contrast to relational databases the distribution of document-centric XML is not well researched. While there are some suggestions on how to split and distribute large XML documents, these approaches do not consider the parallel query evaluation. In this paper, we present and compare five different algorithms to search after suitable split nodes in a large XML document. We then describe how to distribute extractable sub-structures over a fixed number of peers and how to query these peers in parallel to retrieve the final result. In addition, we analyse the impact of our splitting algorithms with respect to scalability for two different XPath expression classes on three well-known XML data sets. We conclude this paper with an outlook on future work, including result ordering during parallel query execution and dynamic re-distribution of XML fragments to new peers due to updates.</dcterms:abstract>
    <dc:creator>Graf, Sebastian</dc:creator>
    <dcterms:issued>2008</dcterms:issued>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:creator>Kramis, Marc</dc:creator>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/36"/>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/36"/>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T16:00:06Z</dcterms:available>
    <dcterms:title>Distributing XML with focus on parallel evaluation</dcterms:title>
    <dc:format>application/pdf</dc:format>
    <dc:language>eng</dc:language>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/5788/1/graf.pdf"/>
    <dc:contributor>Graf, Sebastian</dc:contributor>
    <dcterms:bibliographicCitation>Paper, presented at: Databases, Information Systems, and Peer-to-Peer Computing, Sixth International Workshops, DBISP2P 2008, Auckland, New Zealand, August 23, 2008</dcterms:bibliographicCitation>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/5788/1/graf.pdf"/>
    <dc:rights>Attribution-NonCommercial-NoDerivs 2.0 Generic</dc:rights>
    <dc:creator>Waldvogel, Marcel</dc:creator>
  </rdf:Description>
</rdf:RDF>

Universitätsbibliographie

Ja