Volunteered geographic information

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Volunteered geographic information (VGI) is the harnessing of tools to create, assemble, and disseminate geographic data provided voluntarily by individuals (Goodchild, 2007).[1] Some examples of this phenomenon are WikiMapia, OpenStreetMap, and Google Map Maker. VGI can also be seen as an extension of critical and participatory approaches to geographic information systems[2] and as a specific concern within online or web credibility.[3] These sites provide general base map information and allow users to create their own content by marking locations where various events occurred or certain features exist, but aren’t already shown on the base map.

VGI is a special case of the larger Web phenomenon known as user-generated content.[4]

Criticism[edit]

The term VGI has been criticized for poorly representing common variations in the data of OpenStreetMap and other sites: that some of the data is paid, in the case of CloudMade's ambassadors, or generated by another entity, as in US Census data. [5] Because it is gathered by individuals with no formal training, the quality and reliability of VGI is a topic of much debate. Some methods of quality assurance have been tested, namely, the use of control data to verify VGI accuracy.[6]

See also[edit]

References[edit]

  1. ^ Goodchild, M.F. (2007). "Citizens as sensors: the world of volunteered geography". GeoJournal 69 (4): 211–221. doi:10.1007/s10708-007-9111-y. 
  2. ^ Elwood, S. (2008). "Volunteered Geographic Information: Future Research Directions Motivated by Critical, Participatory, and Feminist GIS". GeoJournal 72 (3&4): 173–183. doi:10.1007/s10708-008-9186-0. 
  3. ^ Flanagin, A. J.; Metzger, M. J. (2008). "The credibility of volunteered geographic information". GeoJournal 72: 137–148. doi:10.1007/s10708-008-9188-y. 
  4. ^ Goodchild, M.F. (2007). "Citizens as sensors: the world of volunteered geography". GeoJournal 69 (4): 211–221. doi:10.1007/s10708-007-9111-y. 
  5. ^ Gorman, Sean. "Why VGI is the Wrong Acronym". Fortius One. Retrieved 20 January 2012. 
  6. ^ Comber, A., See, L., Fritz, S., Van der Velde, M., Perger, C., & Foody, G. (2013). Using Control Data to Determine the Reliability of Volunteered Geographic Information about Land Cover. International Journal of Applied Earth Observation and Geoinformation, 23, 37-48. doi:10.1016/j.jag.2012.11.002