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Queries in geospatial databases, such as geographic information systems (GIS), image databases, are often based upon the relations among spatial objects. Spatial relations are the basis of many queries that GIS perform such as the topological relations. The general description of region-region topological relations in details is still an unsolved issue although much effort has been done. The eight...
Demand for up-to-date geographic data is increasing due to the fast growth of Geographic Information System (GIS). The process of updating GIS database can be subdivided into three steps. In the first step, changes of the landscape must be detected. In the second step, different data sources must be used to add further attributes. In the last step, the changes with all additional information have...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.