Land use data update and analysis method based on event semantics
An analysis method and data update technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of land use entity correlation not being reflected, low efficiency, complicated process, etc., to improve historical retrospect Efficiency, improvement of operating efficiency, and simplification of operation
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[0034] First, according to the "Standard for land use database" released in the second national land survey (Standard for land use database, People's Republic of China Land Management Industry Standard, TD / T 1016-2007, released on November 28, 2007) to establish land use Databases, including current and historical databases. The current database has the same data structure as the historical database. The current database stores current data, and the historical database only stores data replaced by changed data. All data entity objects are identified by unique identification codes.
[0035] Then, the corresponding geographic events in the land use change business are extracted through event semantics, and the chain relationship between geographic events is defined as follows:
[0036] a) Simple property change. During the change process, the graph remains unchanged, only the attributes are changed, such as changing the land use type of the map patch. The subject of the change...
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