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-  2001 

面积内插方法及其在GIS中应用

Keywords: 面积内插,GIS,EM算法

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Abstract:

摘要: 在经济、社会和城市研究中,我们要研究的区域往往没有数据,而这些数据需要由已知区域推求。很多建立在区域之上的研究,都不可避免地要进行数据的转换,这通常就需要面积内插。本文在面积内插的基础上,分析了利用附加信息的EM内插方法,提出在GIS中实现的框架步骤,最后分析了EM方法的优缺点,探讨了进一步研究的方向。

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