中文摘要：

将相似性认知的距离观与特征集合观相结合,以差异距离作为相似性特征,提出面状空间数据的几何图形相似性度量模型,针对面状不同地物进行几何图形相似性度量。完成多分辨率网络传输的线状和面状空间数据几何图形相似性度量实验,并对不同传输量的网络渐进传输与普通网络传输进行图形相似度比较,实验结果证明几何图形相似性度量模型对于评价网络渐进传输的可行性。

英文摘要：

Huge data volumes and limited network bandwidth lead to a dilemma for the rapid transmission of spatial data over the Internet.Measurement of the similarity between geometric shapes of progressively transmitted data and original data has not yet been addressed.Based on the Distance View and the Characteristic Set View,this paper proposes a Spatial Data Similarity Model(SDSM)and a set of methods to measure the similarity of lines and polygons.The experiments tested the similarity of lines and polygons at dif...