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《Acta Geodaetica Et Cartographic Sinica》 2003-01
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Statistical Model of Rate of Disfigurement for Attribute Data Accuracy Assessment in GIS

LIU Chun1,2, SHI Wenzhong1, LIU Dajie2(1. The Department of Land Surveying and GeoInformatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China; 2. The Department of Surveying and Geoinformatics, Tongji University 200092,China)  
It is a critical research topic to measure and control accuracy of attribute data in the overall research framework accuracy in GIS data. This has become an even more important issue, particularly when more and more GIS data needs to be collected and updated. Sampling technique has been adopted in the area of surveying data processing for years. In this paper, the method of rate of disfigurement is proposed to measure accuracy of attribute data in GIS. The stratified sampling technique is then applied to measure accuracy of GIS data that are stored in layers. Finally, a case study is provided to demonstrate the applications of the rate of disfigurement method for attribute accuracy assessment.
【Fund】: 国家自然科学基金资助项目(40171078);; 香港特别行政区资助局资助项目(3 ZB40);; 香港理工大学资助项目(1.34.9709)
【CateGory Index】: P208
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