'Range searching' presentation slideshows

I/O-Algorithms

I/O-Algorithms. Lars Arge Spring 2009 April 28, 2009. I/O-Model. Parameters N = # elements in problem instance B = # elements that fits in disk block M = # elements that fits in main memory T = # output size in searching problem We often assume that M>B 2

630 views • 53 slides

Computational Geometry Chapter 12

Computational Geometry Chapter 12. Range queries. How do you efficiently find points that are inside of a rectangle? Orthogonal range query ([ x 1 , x 2 ], [ y 1 ,y 2 ]): find all points ( x, y ) such that x 1 <x<x 2 and y 1 <y<y 2 Useful also as a multi-attribute database query. y. y 2.

634 views • 52 slides

Orthogonal Range Searching I

Orthogonal Range Searching I. Range Trees. Range Searching. S = set of geometric objects Q = query object Report/Count objects in S that intersect Q. Query Q. Report/Count answers. Single-shot Vs Repeatitive. Query may be: Single-shot (one-time). No need to preprocess

534 views • 38 slides

2IL50 Data Structures

2IL50 Data Structures. Spring 2014 Lecture 9: Range Searching. Methodology for augmenting a data structure Choose an underlying data structure. Determine additional information to maintain. Verify that we can maintain additional information for existing data structure operations.

484 views • 36 slides

R-tree: Indexing Structure for Data in Multi-dimensional Space

R-tree: Indexing Structure for Data in Multi-dimensional Space. Bin Yao (Slides made available by Feifei Li). q 4. q 3. q 1. q 2. Until now: Data Structures. General planer range searching (in 2-dimensional space): kdB-tree : query, space. Other results.

543 views • 34 slides

Accelerator neutrino interactions in the MINOS Experiment

Accelerator neutrino interactions in the MINOS Experiment. Krzysztof Wojciech Fornalski Warszawa 3.XII.2007. Overview of the talk. MINOS experiment neutrino interactions cuts method of selection Range Searching method results summary. MINOS experiment. First informations.

474 views • 32 slides

Tradeoffs in Approximate Range Searching Made Simpler

Tradeoffs in Approximate Range Searching Made Simpler. Sunil Arya Hong Kong University of Science and Technology Guilherme D. da Fonseca Universidade Federal do Rio de Janeiro David M. Mount University of Maryland SIBGRAPI, Campo Grande, MS 10/2008. Contents. Range Searching Quadtrees

380 views • 23 slides

Computational Geometry

Computational Geometry. Piyush Kumar (Lecture 5: Range Searching). Welcome to CIS5930. Range Searching : recap. 1D Range search kD trees Range Trees Fractional Cascading. Range Searching. Preprocess a set P of objects for efficiently answering queries.

259 views • 17 slides

Parallel Algorithms in Computational Geometry

Parallel Algorithms in Computational Geometry. by Savitha Parur Venkitachalam. Agenda. Computational Geometry Introduction Serial and Parallel Algorithm for Orthogonal Range searching Serial and Parallel Algorithms for Convex Hull Questions. Computational Geometry.

309 views • 16 slides

Geometric Intersection

Geometric Intersection. Determining if there are intersections between graphical objects Finding all intersecting pairs Brute Force Algorithm Plane Sweep Algorithm. Applications. Integrated circuit design:. Computer graphics (hidden line removal):. Range Searching.

202 views • 15 slides

Parallel Orthogonal Range Searching

248 views • 14 slides