Haklay Muki, ;
Ellul Claire, ;
Assessing Data Completeness of VGI through an Automated Matching Procedure for Linear Data.
Transactions in Geographic Information Systems (GIS)
New, free and fast growing spatial data sources have appeared online, based on VolunteeredGeographic Information (VGI). OpenStreetMap (OSM) is maybe the most representative project of this trend. Its increasing popularity and density urges researchers on studying its data quality. When this includes comparison with a reference dataset, data matching is necessary for the comparison to be meaningful, usually performed manually at data preparation stage. We propose an automated matching method specifically designed for VGI, based on a multi-stage approach that combines geometric and attribute constraints. We apply it on OSM dataset to compare it against official data from Ordnance Survey. We then show how the results can be used to evaluate data completeness of OSM.
|Title:||Assessing Data Completeness of VGI through an Automated Matching Procedure for Linear Data|
|Keywords:||VGI, OSM, Spatial Data Quality, Data Completeness, Data matching|
|UCL classification:||UCL > School of BEAMS
UCL > School of BEAMS > Faculty of Engineering Science
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