DocumentCode :
3190521
Title :
Modeling Fundamental Geo-Raster Operations with Array Algebra
Author :
Gutierrez, Angelica Garcia ; Baumann, Peter
fYear :
2007
fDate :
28-31 Oct. 2007
Firstpage :
607
Lastpage :
612
Abstract :
OLAP pre-aggregation techniques have proven to enable query time responses close to real-time in business and sta- tistical applications. In raster image databases (such as for geo services), similar data structures and operations appear. However, only one particular, comparatively sim- ple pre-aggregation technique is used there, namely image pyramids. We are working on systematically carrying over results from OLAP to geo raster databases. In this paper we identify a set of fundamental geo raster operations and formulate them algebraically, using a proven array model. We argue that pre-aggregation support for a few basic query patterns is sufficient for many practical situations.
Keywords :
Algebra; Conferences; Data engineering; Data mining; Image databases; Image storage; Jacobian matrices; Multidimensional systems; Query processing; Remote sensing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Data Mining Workshops, 2007. ICDM Workshops 2007. Seventh IEEE International Conference on
Conference_Location :
Omaha, NE
Print_ISBN :
978-0-7695-3019-2
Electronic_ISBN :
978-0-7695-3033-8
Type :
conf
DOI :
10.1109/ICDMW.2007.53
Filename :
4476730
Link To Document :
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