GIS中属性数据质量控制的研究

随着土地信息系统应用的扩大和分析功能的扩充,对数据的要求也越来越高,尤其是对属性数据的要求越来越高,因而对属性数据进行质量检验和分析就显得格外重要。目前对GIS数据质量控制的大多数研究主要是针对表示拓扑关系的图形数据,对属性数据的研究则相对较少。本文在前人对GIS中数据精度的度量和质量控制作了初步的描述的基础上,对其中属性数据的质量控制与评价方法进行了研究。

Quality control for attribute data in GIS

With the extension of land information system and the expansion of its analysis function, the demand for data especially for attribute data becomes higher and higher. It is very important to do quality test and analysis on the attribute data. At present, many researches on GIS data quality control mainly aim at graph data which is used to express topological relation. Comparatively, the research to the attribute data is less. On the basis of existing work on CIS data accuracy measure and quality control, the quality control and evaluation of attribute data is studied in this paper, which has theoretical and practical significance.