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Proceedings Paper

Research on setting up a data quality system for topographic mapping of west China
Author(s): Ping Yang; Xinming Tang; Yang Cao
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Paper Abstract

In order to develop a quality assurance system for maps thus obtained from the National Western Surveying and Mapping Project on 1:50000 Topological Maps Blank Area, a spatial data quality check method based on entity and evaluation method by implementing the cloud theory and rough set is going to be put forward in the paper. First, spatial data quality problems are to be analyzed and possible quality problems will be described. Secondly, a digital linear graphic spatial data quality model is built and the quality elements and sub-elements are elaborately summarized. Next, spatial computing operators that the check process demands are given. The weight of each index is calculated according to importance of attribute in rough set. Cloud decision generator transforms indexes value into qualitative evaluation. Finally, the homologous software of the spatial data quality check and evaluation is developed to control spatial data quality. Therefore a spatial data quality control and evaluation technique system is founded. It shows that the check and evaluation methods are feasible and software has higher automation from the experiment.

Paper Details

Date Published: 10 November 2008
PDF: 10 pages
Proc. SPIE 7146, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Advanced Spatial Data Models and Analyses, 714611 (10 November 2008); doi: 10.1117/12.813128
Show Author Affiliations
Ping Yang, Wuhan Univ. (China)
Chinese Academy of Surveying and Mapping (China)
Xinming Tang, Chinese Academy of Surveying and Mapping (China)
Yang Cao, Liaoning Technical Univ. (China)

Published in SPIE Proceedings Vol. 7146:
Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Advanced Spatial Data Models and Analyses
Lin Liu; Xia Li; Kai Liu; Xinchang Zhang, Editor(s)

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