Using control data to determine the reliability of volunteered geographic information about land cover
作者： Alexis Comber , Linda See , Steffen Fritz , Marijn Van der Velde , Christoph Perger
DOI: 10.1016/J.JAG.2012.11.002
关键词: Reliability (statistics) 、 Relation (database) 、 Portmanteau 、 Volunteered geographic information 、 Land cover 、 Geography 、 Class (computer programming) 、 Data collection 、 Cartography 、 Data mining 、 Interface (Java)
摘要: There is much interest in using volunteered geographic information (VGI) in formal scientific analyses. This analysis uses VGI describing land cover that was captured using a web-based interface, linked to Google Earth. A number of control points, for which the land cover had been determined by experts allowed measures of the reliability of each volunteer in relation to each land cover class to be calculated. Geographically weighted kernels were used to estimate surfaces of volunteered land cover information accuracy and then to …
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