Tag: quality analysis
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Vandalism in Volunteered Geographic Information revisited
In this weeks BrownBag talk at the UCSB Spatial Center Dr. Andrea Ballatore gave a nice overview about vandalism in user generated geographic information. The talk referred to his recent paper on “Defacing the Map: Cartographic Vandalism in the Digital Commons“. There he outlines a typology of different kinds of map-based vandalism through a qualitative…
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Successful PhD Defense of Pascal Neis
On Tuesday, 17th of June, our former group member Pascal Neis successfully defended his PhD thesis! The subject of his PhD was about investigating the quality of OpenStreetMap contributions. Pascal’s PhD comprises eight journal papers. In addition he also published many conference contributions. Furthermore, he developed the first version of OpenRouteService (ORS), which was the…
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A Review of OpenStreetMap Research
User-generated content (UGC) platforms on the Internet have experienced a steep increase in data contributions in recent years. The ubiquitous usage of location-enabled devices, such as smartphones, allows contributors to share their geographic information on a number of selected online portals. The collected information is oftentimes referred to as volunteered geographic information (VGI). One of…
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Qualitätsbewertung nutzergenerierter Geodaten am Beispiel OpenStreetMap
was the titel of a well-attended invited talk at the Geodetic Colloquium in January at the KIT Karlsruhe Insitute of Technology, Geodetic Institute by Prof. Alexander Zipf. It presented some examples of our work on OSM quality assessment such as iOSManalyser, OSMatrix, but also research on transforming OpenStreetMap into 3D. e.g. Barron, C., Neis, P.,…
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About quality assessment for building footprints data in OpenStreetMap
In the past years, several applications of generating 3D buildings from OpenStreetMap (OSM) have been made available, for instance, OSM-3D, OSM2World, etc. In these projects, 3D buildings are reconstructed using the buildings’ footprints and information about their attributes, which are documented as tags in OSM. Therefore, the quality of 3D buildings relies strongly on the…