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ELIS – Mul*media Lab r&wbasegit for triplesMiel Vander Sande!Pieter Colpaert, Ruben Verborgh, Sam Coppens, Erik Mannens, Rik Van de Walle

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ELIS – Mul*media Lab

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ELIS – Mul*media Lab Read/WriteLINKEDDATA

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ELIS – Mul*media Lab

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ELIS – Mul*media Lab TRIPLE STORESare they up for the challenge?

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ELIS – Mul*media Lab r&wbasegit for triplesMiel Vander Sande!Pieter Colpaert, Ruben Verborgh, Sam Coppens, Erik Mannens, Rik Van de Walle

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ELIS – Mul*media Lab Distributed Triple Version ControlCommitsDeltasVirtual graphsVersionsstoredescribeidentify resolve

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ELIS – Mul*media Lab r&wbaseTriple StoreInterpretationLayerEndpoint

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ELIS – Mul*media Lab Distributed Triple Version ControlCommitsDeltasVirtual graphsVersionsstoredescribeidentify resolve

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ELIS – Mul*media Lab LIVEtriplesrequire fast version retrievalLIGHTWEIGHTalgorithmthrough a

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ELIS – Mul*media Lab 6420Base 0Delta 2Delta 4Delta 6Delta store

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ELIS – Mul*media Lab 642002461357Add-set Delete-set

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ELIS – Mul*media Lab Store triplesQUADS<subject> <predicate> <object> <context>using

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ELIS – Mul*media Lab Store triplesQUADS<subject> <predicate> <object> <delta>:Adam :knows :Bob <0>using

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ELIS – Mul*media Lab 6:Adam :knows :Bob <0>:Carlos :knows :Danny <0>:Adam :knows :Emma <2>:Carlos :knows :Danny <4>:Freddy :knows :Emma <6>:Carlos :knows :Danny <3>:Adam :knows :Emma <7>

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ELIS – Mul*media Lab 6:Adam :knows :Bob <0>:Carlos :knows :Danny <0>:Adam :knows :Emma <2>:Carlos :knows :Danny <4>:Freddy :knows :Emma <6>:Carlos :knows :Danny <3>:Adam :knows :Emma <7>Query over version 6

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ELIS – Mul*media Lab query over all TRIPLESof which theHIGHESToccuring context valueQuery over version 6=

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ELIS – Mul*media Lab 6:Adam :knows :Bob <0>:Carlos :knows :Danny <0>:Adam :knows :Emma <2>:Carlos :knows :Danny <4>:Freddy :knows :Emma <6>:Carlos :knows :Danny <3>:Adam :knows :Emma <7>Query over version 6

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ELIS – Mul*media Lab query over all TRIPLESof which theHIGHESToccuring context valueisEVEN=Query over version 6

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ELIS – Mul*media Lab 6:Adam :knows :Bob <0>:Carlos :knows :Danny <0>:Adam :knows :Emma <2>:Carlos :knows :Danny <4>:Freddy :knows :Emma <6>:Carlos :knows :Danny <3>:Adam :knows :Emma <7>Query over version 6

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ELIS – Mul*media Lab Distributed Triple Version ControlCommitsDeltasVirtual graphsVersionsstoredescribeidentify resolve

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ELIS – Mul*media Lab Exposing aSELECT *FROM NAMED <http://example.com/graph/versions/hashA>WHERE { ?s ?p ?o}VERSIONthrough aVIRTUAL GRAPHdirectly supported inSPARQL

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ELIS – Mul*media Lab Distributed Triple Version ControlCommitsDeltasVirtual graphsVersionsstoredescribeidentify resolve

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ELIS – Mul*media Lab 0 2 4 68 1012COMMITstores aDELTAand associatedMETADATAaidentifier message parent commitauthor committertimestamp

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ELIS – Mul*media Lab 0 2 4 68 1012COMMITstores aDELTAandassociatedMETADATAaidentifier message parent commitauthor committertimestampHASH

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ELIS – Mul*media Lab identifier message parent commitauthor committertimestampPROVENANCEPROV-O0 2 4 68 1012at operation leveldescribed withderived fromderived fromderived fromderived fromderived fromderived fromderived fromCOMMITais

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ELIS – Mul*media Lab commit:hIjKlMn a prov:Activity; prov:atTime "2013-02-16T01:52:02Z"; prov:used version:hashA; prov:generated version:hashB; dcterms:title "Update social graph."; prov:wasAssociatedWith :Derek .version:hashA a prov:Entity, ex:Dataset .version:hashB a prov:Entity, ex:Dataset;prov:wasDerivedFrom version:aBcDeFg .:Derek a prov:Person .

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ELIS – Mul*media Lab r&wbaseGRAPH accessTRIPLESTORESPROVENANCEVERSIONwith directprovidescontrolforand

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ELIS – Mul*media Lab QUESTIONS?

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ELIS – Mul*media Lab Attributions• Photo slide 4 http://sebreg.deviantart.com/• Photo slide 10 http://healthtap.com• Photo slide 5 http://www.hull.ac.uk/