摘要
以城市信息化空间数据处理为研究背景,基于信息熵与Rough集理论解决信息系统中信息不确定、数据量大的困难。从Rough集的基本概念出发,给出决策表的知识表达系统,探讨了信息熵处理知识依赖度的方法。最后通过运用该方法对城市空间数据决策表的实例进行属性值依赖关系的确定。
This paper discusses the resolution of the problems of uncertain information and generous data of urban information systems based on information entropy and Rough-set theory, which research on spatial date processing of urban information.Starting from the basic concepts of the Rough-set theory, it describes the knowledge expression system and discusses the methods of disposing the knowledge dependency.And finally, the relations of attribute dependency are confirmed through the instances of urban spatial information system by these methods.
出处
《中国地质大学学报（社会科学版）》
2004年第4期28-30,共3页
Journal of China University of Geosciences(Social Sciences Edition)
基金
国家自然科学基金资助项目(70071041)
关键词
城市信息化
ROUGH集
信息熵
知识依赖度
urban information
Rough-set
information entropy
knowledge dependency
