【作者】 李莉； 王海清；

【机构】 国家基础地理信息中心；

【摘要】 地理学是一门研究地壳表面自然要素与人文要素相互关系及相互作用的科学。在现代自然科学和社会科学发展的影响下,定量化、系统化研究,使得地理学的研究从静态、定性描述走向动态、定量分析。本文讨论了空间数据挖掘与知识发现的方法,以基于DEM数据进行流域单元提取为例,实现了对DEM数据的知识挖掘的尝试,并就处理过程中选用的主要算法和应用中遇到的具体问题进行了探讨。更多还原

【Abstract】 Geography is a science that investigates mutual relationships and interactions between natural and human elements on the earth’s surface. Methodological innovation in Geography has been accelerated by the process of adaptation of theory and methods of modern sciences. Influenced by the development of and contact with natural and social sciences, quantitative and systematic researches have transformed the broad character of geographical research from static, qualitative description to dynamic, quantitative analysis. The methodologies for data mining and knowledge discovering are introduced, and DEM data mining for abstracting the drainage basin are studied as an example.更多还原