DocumentCode :
2966076
Title :
A pyramid data model for supporting content-based browsing and knowledge discovery
Author :
Li, Zuotao ; Wang, X. Sean ; Kafatos, Menas ; Yang, Ruixin
Author_Institution :
George Mason Univ., Fairfax, VA, USA
fYear :
1998
fDate :
1-3 Jul 1998
Firstpage :
170
Lastpage :
179
Abstract :
Remote sensing from space can provide global and continuous observations. The associated measurement data need to be stored and studied to understand the Earth system processes. The ability of interactive content-based browsing, i.e., browsing or searching the content to narrow-down the interesting portions of data sets prior to actually accessing or ordering full data sets, is highly desirable for any Earth science data information system. However the large volumes of archived and future Earth science remote sensing data are clearly a serious challenge for an interactive browsing process. In this paper a pyramid data model is introduced to support interactive content-based browsing and knowledge discovery for a wide variety of Earth science remote sensing data sets. By using multi-level precomputation and robust nonparametric approximation procedures, the interactive browsing performance can be enhanced greatly. An initial implementation and testing of this data model has been carried out through our research prototype system, Virtual Domain Application Data Center (VDADC). Future implementations are planned for our Seasonal to Interannual Earth Science Information Partner (SIESIP) project
Keywords :
geographic information systems; geophysics computing; knowledge acquisition; query processing; remote sensing; spatial data structures; very large databases; visual databases; Earth science data information system; Earth system processes; SIESIP project; Seasonal to Interannual Earth Science Information Partner; Virtual Domain Application Data Center; content-based browsing; data sets; interactive browsing; knowledge discovery; measurement; nonparametric approximation; pyramid data model; remote sensing; searching; Data models; Ear; Earth Observing System; Electrical capacitance tomography; Geoscience; Prototypes; Read only memory; Remote sensing; System testing; Volume measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Scientific and Statistical Database Management, 1998. Proceedings. Tenth International Conference on
Conference_Location :
Capri
ISSN :
1099-3371
Print_ISBN :
0-8186-8575-1
Type :
conf
DOI :
10.1109/SSDM.1998.688121
Filename :
688121
Link To Document :
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