| 基于SOM的多维信息可视化研究 |
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| 引用本文： | 芮小平,张立强. 基于SOM的多维信息可视化研究[J]. 应用基础与工程科学学报, 2011, 19(3): 379-388. DOI: 10.3969/j.issn.1005-0930.2011.03.004 |
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| 作者姓名： | 芮小平 张立强 |
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| 作者单位： | 1. 中国科学院生态环境研究中心，城市与区域生态国家重点实验室，北京100085;中国科学院研究生院资源与环境学院，北京100049
2. 北京师范大学地理学与遥感科学学院遥感科学国家重点实验室,北京,100875 |
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| 基金项目： | 国家自然科学基金(40901191)；国家重大科技专项项目 |
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| 摘 要： | 处理数量巨大且富含多维信息的数据正成为人们关注的热点,可视化技术为分析和处理海量信息提供了新的手段.SOM能够通过自组织的方式实现高维数据的降维.本文介绍了基于SOM法的多维信息可视化技术.该方法先通过SOM矢量量化法建立原型矢量,然后通过SOM的批量训练实现降维,并用多维比例缩放法实现降维后的数据在低维空间坐标上的投影.在此基础上,分别阐述了地图网格映射、基于聚类的可视化和基于变量的可视化3种可视化方法.论文最后用SOM方法对2003年中国非典的多维信息进行了可视化分析,验证了该方法的实用性.
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| 关 键 词： | 可视化 多维信息 SOM |
Visualization of Multi-dimensional Information Based on SOM |
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| RUI Xiaoping,ZHANG Liqiang. Visualization of Multi-dimensional Information Based on SOM[J]. Journal of Basic Science and Engineering, 2011, 19(3): 379-388. DOI: 10.3969/j.issn.1005-0930.2011.03.004 |
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| Authors: | RUI Xiaoping ZHANG Liqiang |
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| Affiliation: | RUI Xiaoping1,2,ZHANG Liqiang3(1.State Key Laboratory of Urban and Regional Ecology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China,2.College of Resources and Environment,Graduate University of Chinese Academy of Sciences,Beijing 100049,3.The State Key Laboratory of Remote Sensing Sciences,Beijing Normal University,Beijing 100875,China) |
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| Abstract: | Process massive and multi-dimensional information is a research hot in recent years and visualization technology provides a new approach for us to analyze and understand massive information.SOM is a method that can reduce the dimension of high dimension data thorough self organizing.This paper introduced the principle of multidimensional information visualization based on SOM.The method obtains prototype vectors by vector quantization and trains the network by batch training.Then,it projects the trained dat... |
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| Keywords: | visualization multi-dimension SOM |
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