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《》 2007-02
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Continuous and Discrete Dynamic Fields Integrated Model and Its Database Extension

HUANG Fengru FANG Yu CHEN Bin PENG Xia YIN Shuangshi(Institute of Remote Sensing & GIS,Peking University,Beijing,100871)  
Based on the field model,a uniform dynamic field model is proposed to support representing the characteristics of distribution continuity and time development of spatial phenomena.Through analytical expressions and arrays data structures,data types and operating functions of the new model are extended in an object-relational database to support uniform representation,management,access and spatio-temporal querying for continuous and discrete dynamic fields.Several examples are demonstrated to discuss the representing and querying ability of the new model and its database extension.
【Fund】: 国家自然科学基金(40501052);; 国家863计划(2006AA12Z201)资助项目
【CateGory Index】: TP392
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【References】
Chinese Journal Full-text Database 1 Hits
1 YIN Shuang-shi,LIU Yang,FANG Yu,CHEN Bin,TIAN Xiao-ting,LIU Ze-yang(Institute of Remote Sensing & GIS,Peking University,Beijing 100871,China);Research on Integrated Operation of Vector and Raster Data in Object-Relational Database[J];Geography and Geo-Information Science;2009-04
【Citations】
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
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【Co-references】
Chinese Journal Full-text Database 3 Hits
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