地理信息时态不确定性的语义与计算

基金项目: 国家973计划资助项目(2006CB701305);高等学校博士学科点专项科研基金资助项目(2004048602);国家自然科学基金资助项目(40671150)

详细信息

Semantics and Computation of Temporal Uncertainty in Geographical Information

1 State Key Laboratory for Information Engineering in Surveying,Mapping and Remote Sensing, Wuhan University,129 Luoyu Road,Wuhan 430079,China² Press of Wuhan University,Luojia Hill,Wuhan 430072,China

Funds: 国家973计划资助项目(2006CB701305);高等学校博士学科点专项科研基金资助项目(2004048602);国家自然科学基金资助项目(40671150)

摘要: 对地理信息时态不确定的概念认知与符号计算方面作了初步探讨,认为地理信息时态不确定性的本体在于动态地理现象的内在复杂性、机器计算能力和人认知限度的多层次不一致性,解释了时间空间不确定性-运动不确定性-动力不确定性的整体时空不确定性语义,选择设计了地理信息时间位置精度指标、不确定当前值的渐进语义模拟、地图过时性和空间数据库现势性计算模型。
- 时间 /
- 不确定性 /
- 地理信息
Abstract: Semantics and computation of temporal uncertainty in geographical information is discussed.It is argued that temporal uncertainty of geographical information basically lies in the multiple inconsistencies among the complexity of dynamical geographical phenomena,the powerness of computing machinery,and the capability of human cognition at different levels.Moreover,the holistic uncertainty of space-time uncertainty,motion uncertainty,and kinetics uncertainty is explained.Particularly,computation models of time position uncertainty,Now value endued with some progressive uncertainty semantics,outdatedness or currency evaluation of maps and spatial databases are designed.
- time /
- uncertainty /
- geographical information