Controlling Systematic Error in GIS Data Using Black Box Approach
GIS空间数据库系统误差控制的黑箱方法

The systematic error control for spatial data in GIS is one of the essential-research issues in the research society. 'this paper presents a direct estimation approach for modeling the integrated effect of the systematic error in GIS data using the black box approach. The traditional affine transformation method turns to be one special case of this the black box approach. In this paper, the principle of the black box approach is firstly introduced. The black box correction model is then developed based on the statistics of mufti-variables. The methods for model selection and parameter estimation are given finally.