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Geo-spatial Data Analysis, Quality Assessment and Visualization
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Geo-spatial Data Analysis, Quality Assessment and Visualization
Yong Ge1, 2 , Bai Hexiang1 and Sanping Li1 
| (1) |
State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences & Natural Resources
Research, Chinese Academy of Sciences, Beijing, 100101, China |
| (2) |
Department of Earth and Space Science and Engineering, York University, Canada |
Abstract
As GIS and Remote Sensing technologies develops rapidly, they provide the strong technical support for multi-level geo-spatial
data acquisition. However, serious lag of spatial analysis technology leads to the “data explosion but knowledge poverty”.
At the same time, the lack of quality assessment means allows users to doubt the reliability of colourful “high-tech” geospatial
products. This paper would propose an advanced and integrated architecture to establish the relations between spatial data
analysis, the uncertainty and reliability of geo-spatial data in terms of geo-spatial data processing flow. This provides
a quality assessment for geo-spatial analysis outcome from multi-source information fusion and integration, and a support
for decision maker based on the reliability. Furthermore, geo-visualization technology would help people intuitively know
the quantity, distribution, spatial structure and tendency of uncertainty of geo-spatial data and information. A case study
is followed to describe the framework.
Keywords Geo-spatial data analysis - quality assessment - visualization
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