Spatial data compression is an important task for spatial transmission on wireless mobile network and improving mobile GIS system efficiency.

空间数据的压缩对于空间数据无线移动网络以及提高整个移动GIS系统的效率来说是一项很重要的工作。

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By introducing a new grid-based data compression framework, conducted the study on the clustering algorithm SGRIDS which dealed with a large spatial databases.

引入了一种新的基于网格的数据压缩方法，并应用该方法对处理大型空间数据集的聚类算法SGR IDS进行研究。

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