摘要
由于GIS在社会中的作用越来越大,研究其精度就格外重要,文章就GIS的模糊不确定性进行了研究:首先就人类对不确定性的认识进行了论述,接着简单介绍不确定性的相关概念,然后详细地阐述了GIS存在着模糊不确定性以及模糊不确定性的多种来源,接着,就空间实体中的模糊点、模糊线和模糊面用模糊理论进行表示,最后总结并提出了今后的研究方向。
Because GIS is more and more useful for society polity and economy, it is very important to research its precision, and the paper carries through research on GIS fuzzy uncertainty. The paper firstly discusses cognition of uncertainty; on cognition of uncertainty; in succession, simply introduces correlation concepts about uncertainty; then, particularly expatiates that GIS exists fuzzy uncertainty and GIS have several kinds of sources that contain fuzzy uncertainty; afterwards, spatial entities such as fuzzy points? fuzzy curve and fuzzy surface use fuzzy theory to represent; Finally draws a conclusion and puts forward research issue on the future.
出处
《地理空间信息》
2004年第5期8-10,14,共4页
Geospatial Information
基金
测绘遥感信息工程国家重点实验室开发研究基金资助项目((02)0101)
