An Efficiently Computable Metric for Comparing Polygonal Shapes
IEEE Transactions on Pattern Analysis and Machine Intelligence
Is It Time for a Moratorium on Metadata?
IEEE MultiMedia
International Journal of Human-Computer Studies
NeoGeography and the nature of geographic expertise
Journal of Location Based Services - NeoGeography
The participation loop: helping citizens to get in
ICCSA'11 Proceedings of the 2011 international conference on Computational science and its applications - Volume Part II
VGI as a dynamically updating data source in location-based services in urban environments
Proceedings of the 2nd international workshop on Ubiquitous crowdsouring
COSIT'11 Proceedings of the 10th international conference on Spatial information theory
Proceedings of the 19th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
Assessing the completeness of geographical data
BNCOD'13 Proceedings of the 29th British National conference on Big Data
Interactive cartographic route descriptions
Geoinformatica
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Volunteered Geographic Information (VGI) is currently a "hot topic" in the GIS community. The OpenStreetMap (OSM) project is one of the most popular and well supported examples of VGL Traditional measures of spatial data quality are often not applicable to OSM as in many cases it is not possible to access ground-truth spatial data for all regions mapped by OSM. We investigate to develop measures of quality for OSM which operate in an unsupervised manner without reference to a "trusted" source of ground-truth data. We provide results of analysis of OSM data from several European countries. The results highlight specific quality issues in OSM. Results of comparing OSM with ground-truth data for Ireland are also presented.