文献类型：期刊文献

中文题名：地理信息语义尺度及其变换机制问题研究

英文题名：Study on Semantic Scale of Geographical Information and Its Transformation Mechanism

作者：刘凯[1,2];任星[1];秦耀辰[1]

第一作者：刘凯

机构：[1]河南大学环境与规划学院;[2]河南财经学院资源与环境科学系

第一机构：河南大学环境与规划学院,河南开封475001

年份：2010

期号：3

起止页码：261-266

中文期刊名：河南大学学报：自然科学版

收录：CSTPCD;;北大核心:【北大核心2008】；

基金：国家"863"项目子课题(2007AA12Z219)

语种：中文

中文关键词：地理信息科学;语义尺度;变换机制

外文关键词：geographical information science; semantic scale; transformation mechanism

摘要：研究了地理信息的语义尺度及其变换机制问题.探讨了语义尺度概念的内涵,指出了语义尺度的表征量名,阐述了语义尺度和空间尺度及时间尺度的关系,在此基础上基于分类关系和构成关系提出了地理信息语义尺度变换的机制,并用代数方法进行了形式化描述.对于完善尺度理论体系具有重要意义.
In geographical information science,scale is a foundational issue. As to probe into the connotation of scale of geographical information,three-tiered conceptualization of scale has been introduced as：dimensions,kinds and components. Dimension of scale of geographical information is of space,time and semantic hierarchy. First,this article defines the connotation of semantic scale,points out its presentations and measurement,discusses the relations of semantic scale,spatial scale and timescale; second,transformation mechanism of semantics scale in geographical information science has been probed,and it can be included two ways：transformation of semantic levels of relations of ＂is-kind-of＂ ,transformation of semantic levels of relation of ＂is-part-of＂ ; At last its formalization of the semantic transformation mechanism of geographical information of the two ways is presented based on algebraic approach.