Approximate query answering - PowerPoint PPT Presentation

Approximate XML Query Answers

Approximate XML Query Answers. Alkis Polyzotis (UC Santa Cruz) Minos Garofalakis (Bell Labs) Yannis Ioannidis (U. of Athens, Hellas). XML. XML Data. Motivation. XML: de-facto standard for data exchange Development of the “ XML Warehouse”

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447 views • 26 slides

A Statistics Propagation Approach to Enable Cost-Based Optimization of Statement Sequences

A Statistics Propagation Approach to Enable Cost-Based Optimization of Statement Sequences. Tobias Kraft , Holger Schwarz, Bernhard Mitschang Institute of Parallel and Distributed Systems University of Stuttgart. Overview. Motivation Cost Estimation Approach Histogram Propagation

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401 views • 25 slides

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