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  1. Proceedings of the ACM SIGSPATIAL Second International Workshop on High Performance and Distributed Geographic Information Systems (HPDGIS '11)
  2. Efficient histogramming of large-scale geospatial rasters in supporting of web-based queries
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Efficient histogramming of large-scale geospatial rasters in supporting of web-based queries

Content Provider ACM Digital Library
Author You, Simin Zhang, Jianting
Abstract This demonstration paper reports our design and implementation of a Web-based system that supports efficient histogramming of large-scale geospatial rasters using either rectangular or arbitrarily shaped polygons interactively drawn by users at the client side. By combining two performance boosting techniques, namely materialized histograms and compressed tiles, experiments using 50 random Region of Interests (ROIs) show that our approach is several times faster than straightforwardly scanning all raster tiles that intersect with the ROIs.
Starting Page 44
Ending Page 45
Page Count 2
File Format PDF
ISBN 9781450310406
DOI 10.1145/2070770.2070779
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2011-11-01
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Geospatial raster Histogram Web-gis Query optimization
Content Type Text
Resource Type Article
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