全部作者: | 舒红 |
第1作者单位: | 武汉大学 |
论文摘要: | Temporal uncertainty is a crossing point of temporal and error-aware geographical information systems. In Geoinformatics, temporal uncertainty is of the same importance as spatial and thematic uncertainty of geographical information. However, until very recently, the standard organizations of ISO/TC211 and FGDC subsequently claimed that temporal uncertainty is one of geospatial data quality elements. Over the past decades, temporal uncertainty of geographical information is modeled insufficiently. To lay down a foundation of logically or physically modeling temporal uncertainty, this paper is aimed to clarify the semantics of temporal uncertainty to some extent. The general uncertainty is conceptualized with a taxonomy of uncertainty. Semantically, temporal uncertainty is progressively classified into uncertainty of time coordinates, changes, and dynamics. Uncertainty of multidimensional time (valid time, database time, and conceptual time, etc.) has been emphasized. It is realized that time scale (granularity) transition may lead to temporal uncertainty because of missing transition details. It is dialectically concluded that temporal uncertainty is caused by the complexity of the human-machine-earth system. |
关键词: | Temporal uncertainty, data quality, geographical information systems. 远程下载 论文(免费PDF论文全文) |
发表日期: | 2007年12月21日 |
同行评议: | 文章围绕地理信息的不确定,探讨了其分类、维度等,有自己的.看法。不足之处是:摘要4要素不全,且不精练;关键词需重新提炼;缺少中文摘要;参考文献过旧过少;行文语法和用词需进1步审核等。 |
综合评价: | |
修改稿: | |
注:同行评议是由特聘的同行专家给出的评审意见,综合评价是综合专家对论文各要素的评议得出的数值,以1至5颗星显示。 |
Temporal Uncertainty of Geographical Inf
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