'Random query' diaporamas de présentation

Web search engines

438 views • 43 slides

Web search engines

472 views • 40 slides

The many facets of approximate similarity search

The many facets of approximate similarity search. Marco Patella and Paolo Ciaccia DEIS, University of Bologna - Italy. Roadmap. Why? motivation for approximate search How? a classification schema How much? optimality in the context of approximate search How good?

514 views • 37 slides

Content-Based Routing: Different Plans for Different Data

Content-Based Routing: Different Plans for Different Data. Pedro Bizarro Joint work with Shivnath Babu, David DeWitt, Jennifer Widom September 1, 2005 VLDB 2005. Introduction. Introduction. The opportunity to improve: Optimizers pick a single plan for a query

477 views • 34 slides

A*-tree: A Structure for Storage and Modeling of Uncertain Multidimensional Arrays

A*-tree: A Structure for Storage and Modeling of Uncertain Multidimensional Arrays . Presented by: ZHANG Xiaofei March 2, 2011. Outline. Motivation Modeling correlated uncertainty Construction of A*-tree Analysis of A*-tree Query processing Experiments. Outline. Motivation

439 views • 33 slides