摘要
属性不确定性是GIS数据不确定性研究范畴的一个重要组成部分,属性数据的不确定性在许多侧重于属性分析的领域中直接影响GIS分析决策结果的准确性和可靠性。分析了属性不确定性的来源,介绍了数据生命周期的概念,研究了GIS中属性不确定的主要处理方法,包括目标模型与域模型、概率论及数理统计、模糊集合、粗集和云理论等,并对基于模糊逻辑的不确定性传播模型和基于灵敏度分析的不确定性传播模型进行理论上的探讨。
Attribute uncertainty is an important component of GIS data uncertainty. It can directly affect the quality of GIS- based decision making. In this paper, the origin of the attribute uncertainty is firstly analyzed. The concept on lifecycle of data is introducted. A number of theories and methods to deal with attribute uncertainty are discussed. They may include, for example, object model and field model , probability theory, fuzzy sets, rough sets, cloud theory and so on. The propagation of the attribute uncertainty is discussed.
出处
《计算机技术与发展》
2009年第12期174-177,共4页
Computer Technology and Development
基金
湖南省自然科学基金资助项目(08JJ6043)
湖南科技学院青年项目(08XKYTB011)
