'Range query' presentation slideshows

Goals of this Course

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Multi-dimensional Search Trees

Multi-dimensional Search Trees. CS302 Data Structures. Modified from Dr George Bebis. Query Types. Exact match query: Asks for the object(s) whose key matches query key exactly. Range query: Asks for the objects whose key lies in a specified query range (interval).

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Range and kNN Searching in P2P

Range and kNN Searching in P2P. Manesh Subhash Ni Yuan Sun Chong. Outline. Range query searching in P2P one dimension range query multi-dimension range query comparison of range query searching in P2P kNN searching in P2P scalable nearest neighbor searching PierSearch

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Reverse Furthest Neighbors in Spatial Databases

Reverse Furthest Neighbors in Spatial Databases. Bin Yao , Feifei Li, Piyush Kumar Florida State University . A Novel Query Type. Reverse Furthest Neighbors (RFN) Given a point q and a data set P, find the set of points in P that take q as their furthest neighbor Two versions :

1k views • 31 slides

Quadtrees and Mesh Generation

Quadtrees and Mesh Generation. Student Lecture in course MATH/CSC 870 Philipp Richter Thursday, April 19 th , 2007. Content of Lecture. Motivation Introduction to Meshes Introduction to Quadtrees Generating Meshes using Quadtrees Looking further. Motivation.

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DBMS Internals: Storage

DBMS Internals: Storage. February 27th, 2004. Representing Data Elements. Relational database elements: A tuple is represented as a record. CREATE TABLE Product ( pid INT PRIMARY KEY, name CHAR(20), description VARCHAR(200), maker CHAR(10) REFERENCES Company(name) ).

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Reverse Furthest Neighbors in Spatial Databases

Bin Yao, Feifei Li, Piyush Kumar Presenter: Lian Liu. Reverse Furthest Neighbors in Spatial Databases. OUTLINE. Introduction Related Work Algorithms PFC (Progressive Furthest Cell) CHFC (Convex Hull Furthest Cell) Experiment Discussion. INTRODUCTION.

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On Efficient Part-match Querying of XML Data

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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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Approximate Encoding for Direct Access and Query Processing over Compressed Bitmaps

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VBI-Tree: A Peer-to-Peer Framework for Supporting Multi-Dimensional Indexing Schemes

VBI-Tree: A Peer-to-Peer Framework for Supporting Multi-Dimensional Indexing Schemes. Presenter: Quang Hieu Vu H.V.Jagadish, Beng Chin Ooi, Quang Hieu Vu, Rong Zhang, Aoying Zhou.

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Trends in Location-based Services

Trends in Location-based Services. Muhammad Aamir Cheema Supported by : Australian Research Council Discovery Early Career Researcher Award. Outline. Introduction Past Research Emerging Trends Concluding Remarks. Definition.

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Query Optimization

Query Optimization. Dr. Karen C. Davis Professor School of Electronic and Computing Systems School of Computing Sciences and Informatics. Outline. overview of relational query optimization logical optimization algebraic equivalences transformation of trees physical optimization

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MISTRAL Processing Relational Queries Using the Multidimensional Access Method UB-Tree

MISTRAL Processing Relational Queries Using the Multidimensional Access Method UB-Tree. Prof. R. Bayer, Ph.D. Dr. Volker Markl Dept. of Computer Science, Technical University Munich and Bavarian Research Center for Knowledgebased Systems (FORWISS). Agenda. 1. Concept of the UB-Tree

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Supporting Range Queries on Web Data Using k -Nearest Neighbor Search

Supporting Range Queries on Web Data Using k -Nearest Neighbor Search. Wan D. Bae, Shayma Alkobaisi, Seon Ho Kim, Sada Narayanappa Computer Science, University of Denver and Cyrus Shahabi Computer Science, University of Southern California. W2GIS 2007. Outline. Introduction

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Nearest Neighbours Search using the PM-tree

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Chapter 3: Data Storage and Access Methods

Chapter 3: Data Storage and Access Methods. Title: The R* Tree: An Efficient and Robust Access Method for Points and Rectangles Authors: N. Beckmann, H. Kriegel, R. Schneider and B. Seeger Pages: 207-216. The R* Tree: An Efficient and Robust Access Method for Points and Rectangles. Problem

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Orthogonal Range Searching

Orthogonal Range Searching. Linear Range Search : 1-dim Range Trees 2-dimensional Range Search : kd-trees 2-dimensional Range Search : 2-dim Range Trees Range Search in Higher Dimensions. Range search. Salary. Children. Age. Input: Set of data points in d-space,

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Parallel External Memory Model for Private-cache Chip Multiprocessors

Nodari Sitchinava Aarhus University. Parallel External Memory Model for Private-cache Chip Multiprocessors. A: {2, 4, 1, 9, 3, 2, 7, 1, 1, 8}. B: {2, 6, 7, 16, 19, 21, 28, 29, 30, 38}. 6. 5. 4. 3. 1. 2. 0. AMD 6-core processor. Intel Quad-core processor. Minimum spanning tree.

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Department of Electrical Engineering and Computer Science, University of Michigan, USA.

BATON: A Balanced Tree Structure for Peer-to-Peer Networks H. V. JAGADISH 1 , Beng Chin OOI 2,4 Martin RINARD 3,4 , Quang Hieu VU 4. Department of Electrical Engineering and Computer Science, University of Michigan, USA.

155 views • 1 slides