Tag: quality analysis
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Quality Evaluation of OSM with Authoritative Data — a study of Land Use in Southern Germany
Volunteered Geographic Information (VGI) such as data derived from the OpenStreetMap (OSM) project is a popular data source for freely available geographic data. There is frequently a cause of concern regarding the quality and usability of such data. In addition to our former studies (further here) or complementing our OSM in GIScience Book in a…
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IJGIS Review for OpenStreetMap in GIScience Book
The International Journal of Geographical Information Science (IJGIS) published a first review by Wen Lin at Taylor & Francis Online (DOI: 10.1080/13658816.2015.1077965) about our Springer book on OpenStreetMap in GIScience: experiences, research and applications, edited by Jamal Jokar Arsanjani, Alexander Zipf, Peter Mooney and Marco Helbich (2015, Springer Series: Lecture Notes in Geoinformation and Cartography,…
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A Conceptual Quality Framework for Volunteered Geographic Information (VGI)
The assessment of the quality of volunteered geographic information (VGI) is cornerstone to understand the fitness for purpose of VGI in many application domains. Most analyses focus on the geometric and positional quality, and only sporadic attention has been devoted to the interpretation of the data, i.e., the communication process through which consumers try to…
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Deadline Extended: VGI Quality Session at ISSDQ 2015
Dear colleagues, We are happy to inform you that the deadline for paper submission for almost all events at the ISPRS Geospatial Week 2015 is extended to 15 April 2015 in order to faclicitate a consistent logistics and because of several demands to extend the deadline. This applies also to our session on “Quality analysis…
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Our edited book “OpenStreetMap in GISciene: Experiences, Research, and Applications” is now Online and orderable.
Dear colleagues, I am pleased to inform you that a book edited by Jamal Jokar Arsanjani, Alexander Zipf, Peter Mooney, Marco Helbich entitled “OpenStreetMap in GISciene : Experiences, Research, and Applications” has been eventually published online and also in print format. The book contains 16 chapters on different aspects of OpenStreetMap in GIScience including 1) Data…
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AGILE 2015 Workshop:::”VALID-LAND: assessing the fitness of citizens observatories for LAND cover/use mapping & VALIDation purposes”
Dear colleagues, In addition to our RICHVGI workshop in AGILE 2015, which will be held on June 9, 2015 in Lisbon, we are organizing a hands-on session called “VALID-LAND: Assessing the fitness of citizens observatories for land cover/land use mapping and validation purposes“. We would be delighted to see you joining along with spreading the word. Topics:…
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Citizen Science 2015 in San Jose CA
On the 11th and 12th February 2015, the Citizen Science 2015 conference took place in San Jose, California. Two busy days of presentations, symposia and workshops provided a great opportunity to learn about and discuss the latest developments in research and practice this field. Citizen science, which has been around for some time as an…
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Quality analysis of VGI: Our session at the 9th International Symposium on Spatial Data Quality (ISSDQ 2015)
Dear colleagues, we are pleased to announce our session called “Quality analysis of Volunteered Geographic Information (VGI) towards effective use” at the 9th International Symposium on Spatial Data Quality (ISSDQ 2015), which will take place in Montpellier, France, from September 28th to October 3rd 2015. Please consider submitting and presenting your relevant research in the…
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Coverage of OSM highway features with corresponding GPS tracks
As can be seen in the WebGL visualisation of the GPS data collected by the OSM contributors in Heidelberg (reported earlier in this blog), the quantity of recorded GPS tracks along an OSM highway features depends on the feature class. It has already been found before that the GPS data is not equally distributed among…
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Citizen Science Workshop in Osnabrück
The German Federal Ecological Foundation organized together with the consortium „BürGEr schaffen WISSen (GEWISS)“ a citizen science workshop, which took place at the 26th and 27th of January. Participants from academia, industry and administration discussed recent trends and applications. Furthermore, group discussions regarding limitations and urgent problems of citizen science were also on the agenda.…
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Modeling the evolution of OpenStreetMap with Cellular Automata using a new VGI Contribution Index
Major research efforts have so far dealt with OSM data quality analysis, but the modality of the evolution of OpenStreetMap (OSM) across space and time has been barely noted. Therefore, a new study by Jokar Arsanjani et al. that has recently been accepted for publication in Transactions in GIS aims to analyze spatio-temporal patterns of…