| GIS属性数据不确定性及其传播研究 |
| |
| 引用本文： | 周迪民,林依勤.GIS属性数据不确定性及其传播研究[J].计算机工程,2010,36(6):250-252. |
| |
| 作者姓名： | 周迪民 林依勤 |
| |
| 作者单位： | 1. 湖南科技学院现代教育技术中心,永州,425100
2. 湖南科技学院数学系,永州,425100 |
| |
| 基金项目： | 国家自然科学基金资助项目(10801048);;湖南省自然科学基金资助项目(08JJ6043);;湖南科技学院青年基金资助项目(08XKYTB011) |
| |
| 摘 要： | 属性数据的不确定性直接影响地理信息系统(GIS)分析决策结果的准确性和可靠性。将GIS属性数据的整个生命周期分成数据采集与准备、数字化信息提取、信息综合和属性数据表达等阶段，研究属性数据不确定性在各阶段的传播，构造其传播模型，提出属性数据不确定性的合成算法与传播算法，实验结果验证了该模型的可用性与有效性。
|
| 关 键 词： | 属性数据 不确定性 地理信息系统 传播模型 灵敏度分析 |
| 修稿时间： | |
Study on Attribute Data Uncertainty in GIS and Its Propagation |
| |
| ZHOU Di-min,LIN Yi-qin.Study on Attribute Data Uncertainty in GIS and Its Propagation[J].Computer Engineering,2010,36(6):250-252. |
| |
| Authors: | ZHOU Di-min LIN Yi-qin |
| |
| Affiliation: | (1. Modern Education Technology Center, Hunan University of Science and Engineering, Yongzhou 425100; 2. Dept. of Mathematics, Hunan University of Science and Engineering, Yongzhou 425100) |
| |
| Abstract: | Attribute data uncertainty can directly affect the quality of Geographic Information System(GIS)-based decision-making. The lifecycle of GIS attribute data is divided into a lot of stages, such as data collection and preparation, digital information extraction, information integration and the expression of attribute data. This paper explores the propagation of the attribute uncertainty at all stages and constructs propagation model of attribute uncertainty. It concludes synthesis and propagation algorithm of attribute uncertainty and tests the availability and effectiveness of the model. |
| |
| Keywords: | attribute data uncertainty Geographic Information System(GIS) propagation model sensitivity analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《计算机工程》浏览原始摘要信息 |
|
点击此处可从《计算机工程》下载全文 |
