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《Geospatial Information》 2012-01
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Rough Expression for Topological Relation of GIS Entity Based on Binary Relation

LIAO Weihua  
We used some characteristic of binary relation and rough set to study the relations for GIS entities,and we discovered that the front,behind,upper and lower neighborhood relation of GIS entity had even more extensive sets than itself based on binary relation's generalized approximation space.We also discovered that the upper and lower approximation of GIS entity for binary relation was more extensive than Pawlark rough set.We discovered that the upper approximation for a single-point set of one GIS entity was equal to it's front neighborhood and was equal to it's behind neighborhood relation's inversion too.
【Fund】: 广西自然科学基金资助项目(2010GXNSFA013109);; 广西大学科研基金资助项目(XJZ110584)
【CateGory Index】: P208
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【Citations】
Chinese Journal Full-text Database 5 Hits
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