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Spatial Access Methods

Spatial Access Methods

Spatial Access Methods. CSCI 2720 Spring 2005. General Overview. Multimedia Indexing Spatial Access Methods (SAMs) k-d trees Point Quadtrees MX-Quadtree z-ordering R-trees. SAMs - Detailed outline. spatial access methods problem definition k-d trees point quadtrees MX-quadtrees

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1.61k views • 128 slides
Advanced topics in databases

Advanced topics in databases

Advanced topics in databases. V. Megalooikonomou Generic Multimedia Indexing (slides are based on notes by C. Faloutsos). General Overview. Multimedia Indexing Spatial Access Methods (SAMs) k-d trees Point Quadtrees MX-Quadtree z-ordering R-trees Generic Multimedia Indexing.

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732 views • 57 slides
Spatial, text, and multimedia databases

Spatial, text, and multimedia databases

Spatial, text, and multimedia databases. Erik Zeitler UDBL. Why indexing?. Speed up retrieval Non-key attributes Feature based. Applications. Image databases (2-D, 3-D) Shapes, colors, textures Financial analysis Sales patterns, stock market prediction, consumer behavior

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712 views • 53 slides
F ast S ubsequence M atching in T ime -S eries D atabases

F ast S ubsequence M atching in T ime -S eries D atabases

F ast S ubsequence M atching in T ime -S eries D atabases. Christos Faloutsos M. Ranganathan Yannis Manolopoulos Department of Computer Science and ISR University of Maryland at College Park. Presented by Rui Li. Abstract.

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450 views • 32 slides
Indexing Network Voronoi Diagrams*

Indexing Network Voronoi Diagrams*

Indexing Network Voronoi Diagrams*. Ugur Demiryurek and Cyrus Shahabi 2012 Speaker: Yihao Jhang Adviser: Prof. Yuling Hsueh. Outline. Abstract Introduction Voronoi Diagram Network Voronoi Diagram R-Tree The Voronoi R-Tree Approach Quad-Tree The Voronoi Quad-Tree Experimental

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593 views • 28 slides
Spatial Indexing

Spatial Indexing

Spatial Indexing. SAMs. Spatial Indexing. Point Access Methods can index only points. What about regions? Z-ordering and quadtrees Use the transformation technique and a PAM New methods: Spatial Access Methods SAMs R-tree and variations. Problem.

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577 views • 27 slides

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