Temporal Uncertainty of Geographical Inf

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Temporal Uncertainty of Geographical Inf
全部作者:舒紅
第1作者單位:武漢大學
論文摘要: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.
關鍵詞:Temporal uncertainty, data quality, geographical information systems. 遠端下載 論文(免費PDF論文全文)
發表日期:2007年12月21日
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文章圍繞地理資訊的不確定,探討了其分類、維度等,有自己的.看法。不足之處是:摘要4要素不全,且不精練;關鍵詞需重新提煉;缺少中文摘要;參考文獻過舊過少;行文語法和用詞需進1步稽核等。 

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TAGS:Temporal Inf