'Index structures' diaporamas de présentation

Index Structures

Index Structures. Computer Science CS-257-01 : Spring 2009 San Jose State University, 16 th February, 2009. What is an Index?. Blocks Holding Records. Matching Records. Value. Index.

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The Design and Implementation of a Log-Structured File System

The Design and Implementation of a Log-Structured File System. By Christian Diercks and Rajarshi Chakraborty. Outline. Introduction & History Existing File System Problems Log Structured File Systems File Location and Reading Free Space Management Segment Cleaning

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Tree-Pattern Queries on a Lightweight XML Processor

Tree-Pattern Queries on a Lightweight XML Processor. MIRELLA M. MORO Zografoula Vagena Vassilis J. Tsotras. Research partially supported by CAPES, NSF grant IIS 0339032, UC Micro, and Lotus Interworks. Outline. Motivation and Contributions Background Method Categorization

525 views • 43 slides

Database Systems 07 Physical Design & Tuning

Database Systems 07 Physical Design & Tuning. Last update: Apr 29, 2019. Announcements/Org. #1 Video Recording Since lecture 03, video/audio recording Link in TeachCenter & TUbe ( video recorder fixed? ) #2 Statistics Exercise 1 All submissions accepted (submitted/draft)

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Andras Belokosztolszki Red Gate Software

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RAID in Practice, Overview of Indexing

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Dimensionality reduction

Dimensionality reduction. Outline. From distances to points : MultiDimensional Scaling (MDS) FastMap Dimensionality Reductions or data projections Random projections Principal Component Analysis (PCA). Multi-Dimensional Scaling (MDS).

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Physical Database Design

Physical Database Design. About 30% of Chapter 20. Overview. After ER design, schema refinement, and the definition of views, we have the conceptual and external schemas for our database.

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Index Structures For ISAT Work In Progress

Index Structures For ISAT Work In Progress. By Biswanath Panda, Mirek Riedewald, Paul Chew & Johannes Gehrke. Where Do We Fit In?. ISAT uses a tabulation method to find approximate function values Currently a simple binary tree Try existing and new index structures

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Physical Database Design I

Physical Database Design I. Simple queries := no joins, no complex aggregate functions. About 25% of Chapter 20. Focus of this Lecture : Designing Databases for Simple Queries. Part 6. File Organizations Index Structures centering on B+-trees and Hashing External Sorting

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Physical Database Design I

Physical Database Design I. Simple queries := no joins, no complex aggregate functions. About 25% of Chapter 20. Focus of this Lecture : Designing Databases for Simple Queries. Overview.

241 views • 11 slides

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Graphic : Nearest Neighbor Search for Distance Based Indexing

Grant Number: IIS-020914 5 Institution of PI: Case Western Reserve University PIs: Z. Meral Ozsoyoglu, Cenk Sahinalp, Piotr Indyk Title: Improving Proximity Search for Sequences. Significant Results:.

106 views • 1 slides