Point Set Generalization Based on the Kohonen Net  

作　　者：CAI Yongxiang GUO Qingsheng 

机构地区：[1]School of Geoscience, Yangtze University, 1 Nanhuan Road, Jingzhou 434102,China.

出　　处：《Geo-Spatial Information Science》2008年第3期221-227,共7页地球空间信息科学学报（英文）

基　　金：Supported by the Science and Research Development Program Foundation of Yangtze University, the National Natural Science Foundation of China （No. 40571133） and the Key Laboratory of Geo-informatics of State Bureau of Surveying and Mapping （No. 2006（25））.

摘　　要：Point set generalization is one of the essential problems in map generalization. On the demands analysis of point set generalization, this paper proposes a method to generalize point sets based on the Kohonen Net model; the standard SOM algorithm has been improved so as to preserve the spatial distribution properties of the original point set. Examples illustrate that this method suits the generalization of point sets.点集合归纳是在地图归纳的必要问题之一。在点集合归纳的要求分析上，这篇论文建议一个方法基于 Kohonen 网模型概括点集合；标准 SOM 算法被改进了以便保存原来的点集合的空间分发性质。例子说明那这个方法适合点集合的归纳。

关 键 词：multipoint objects map generalization Kohonen Net spatial distribution 

分 类 号：P3[天文地球—地球物理学]