Land cover update method and system based on crowd sourcing geographic data
作者： Meng Yuan , Hou Dongyang , Xing Hanfa , Wang Zixuan , Chen Xiaoxiang
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摘要: The invention discloses a land cover update method and system based on crowd sourcing geographic data. comprises the following steps: obtaining data product, serving as data; extracting for detecting type changes in carrying out space superposition extracted data, selecting outside wherein text information reflecting types coordinate showing spatial position; position from selected through nuclear density model, dividing region to be detected; according detected, of judging detected TF-IDF algorithm.
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