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MotivationHistorical context1998 XML standard is out, gaining traction1998 W3C holds XML QL workshop2000 Intelligent XML node identifiers for persistent storage2001 W3C work on XQuery under way... then come XPath, XSchema,XSL2001 Shredding-based implementations in RDBMSs. Query translationdependent on shreddingI. Manolescu (Gemo/IASI) Optimizations techniques for XML October 30, 2009 7 / 64
MotivationHistorical context1998 XML standard is out, gaining traction1998 W3C holds XML QL workshop2000 Intelligent XML node identifiers for persistent storage2001 W3C work on XQuery under way... then come XPath, XSchema,XSL2001 Shredding-based implementations in RDBMSs. Query translationdependent on shredding2002 Main-memory tree-based implementations (Galax, Qizx, Saxon)I. Manolescu (Gemo/IASI) Optimizations techniques for XML October 30, 2009 7 / 64
Page 1: Optimization techniques for XML que
Page 5 and 6: Part IMaterialized views for XQuery
Page 7 and 8: Materialized views for XQuery: outl
Page 9 and 10: MotivationHistorical context1998 XM
Page 13: MotivationHistorical context1998 XM
Page 19 and 20: MotivationContributions1 Language f
Page 21 and 22: MotivationXAMs: materialized views
Page 23 and 24: {/,//,∗,[ ]}The XAM language XPat
Page 33 and 34: The XAM languageOptionalityXML Acce
Page 35 and 36: The XAM languageSemanticsFormal XAM
Page 37 and 38: From XQuery to XAMsFrom XQuery to X
Page 39 and 40: XAM query rewritingAlgebraic rewrit
Page 41 and 42: XAM query rewritingThe nav operator
Page 43 and 44: XAM query rewritingRewriting exampl
Page 45 and 46: XAM query rewritingRewriting exampl
Page 47 and 48: XAM query rewritingRewriting algori
Page 49 and 50: XAM query rewritingArchitecture(s)S
Page 51 and 52: XML data management on DHTsI. Manol
Page 53 and 54: MotivationDistributed data manageme
Page 55 and 56: MotivationDistributed data manageme
Page 57 and 58: MotivationDistributed hash tablesp
Page 59 and 60: MotivationDistributed hash tables(k
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MotivationFrom DHTs to distributed
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MotivationDHT index queriesThe part
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MotivationBuilding XML stores on DH
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MotivationBuilding XML stores on DH
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KadoP: XML indexing on DHTsIndexing
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KadoP: XML indexing on DHTsScaling
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ViP2P: materialized views on DHTsVi
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Closing8 Related works9 Context of
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Context of this workMain research g
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Context of this workPhD students (c
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PerspectivesPerspectivesDistributed
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PerspectivesWays to goData access t
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PerspectivesThank you!I. Manolescu
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PerspectivesStructured materialized
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PerspectivesLocating data sources i
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Perspectives[ÖV99][SHA05]M. Tamer
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PerspectivesMinimal canonical rewri
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PerspectivesMinimal canonical rewri
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