'Label path' diaporamas de présentation

Structure Indexes for XML

Structure Indexes for XML. Kinds of Indexes. Value Indexes index atomic values; e.g., data(//emp/salary) use B+ trees (like in relational world) (integration into query optimizer more tricky) Structure Indexes materialize results of path expressions (pendant to join indexes, path indices)

787 views • 56 slides

Structure Indexes for XML

Structure Indexes for XML. Kinds of Indexes. Value Indexes index atomic values; e.g., data(//emp/salary) use B+ trees (like in relational world) (integration into query optimizer more tricky) Structure Indexes materialize results of path expressions (pendant to join indexes, path indices)

572 views • 56 slides

XPRESS: A QueriableCompression for XML Data

656 views • 45 slides

XML Indexing Techniques

XML Indexing Techniques. Requirements Dataguide and Variation Index Fabric Adaptative Path Index Node Numbering scheme Compact Structural Summary Conclusion. Requirements. XML Queries involve navigating data using regular path expressions.(e.g., XPath)

567 views • 41 slides

Exploiting Local Similarity for Indexing Paths in Graph-Structured Data

Exploiting Local Similarity for Indexing Paths in Graph-Structured Data. by Raghav Kaushik , Pradeep Shenoy , Philip Bohannon and Ehud Gudes. Outline. No Outline No Confusing Syntax No Pseudocode Examples Results. XML as Data Graph. oid. label(3). value(13).

378 views • 27 slides