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Crowdsourcing is radically changing the geodata landscape

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Presentation to ICA conference, Santiago Chile 17 Nov 2009

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Crowdsourcing is radically changing the geodata landscape

  1. 1. Crowdsourcing is radically changing the geodata landscape: case study of OpenStreetMap Steve Chilton Middlesex University, UK 24 th International Cartography Conference 15-21 Nov 2009, Santiago, Chile
  2. 2. Outline <ul><li>Background </li></ul><ul><li>Crowdsourcing </li></ul><ul><li>OpenStreetMap </li></ul><ul><li>Availability of data </li></ul><ul><li>Other data suppliers </li></ul><ul><li>The future </li></ul>
  3. 3. Crowdsourcing http://dictionary.zdnet.com/definition/Crowdsourcing.html Using the general public to do research or other work, which may or may not be paid .... the term may also refer to user-generated content.
  4. 4. https://www.mturk.com/mturk/welcome
  5. 5. http://www.codinghorror.com/blog/archives/000828.html
  6. 6. Investigating MP’s expenses
  7. 7. http://www.shoothill.com/
  8. 8. http://en.wikipedia.org/wiki/Main_Page http:// www.openstreetmap.org /
  9. 10. http://wiki.openstreetmap.org/wiki/Stats
  10. 11. OSM is slightly ahead of Google/TeleAtlas worldwide. In Europe, OSM is well ahead. Google is slightly ahead in Oceania, and well ahead in Asia and especially South America. http://blog.fortiusone.com/2008/12/12/openstreetmap-vs-googleteleatlas-street-coverage
  11. 12. OSM v OS Meridian OSM is better than Meridian 2 in terms of positional accuracy, and less accurate than Mastermap. Haklay, M., 2008 , How good is OpenStreetMap information? A comparative study of OpenStreetMap and Ordnance Survey datasets for London and the rest of England
  12. 13. Source: pers comms and http://twitpic.com/p0h8e
  13. 14. Microsoft (Navteq) OpenStreetMap http://www.opengeodata.org/2008/03/
  14. 15. http://wiki.openstreetmap.org/wiki/Humanitarian_OSM_Team
  15. 16. source: all images from company websites
  16. 17. http://www.google.com/mapmaker
  17. 18. http://www.bittenandbound.com/2008/10/01/ http://www.imsc.res.in/~indu/JM/2009/JanFeb/Longitude/John_Harrison.jpg
  18. 19. Closing thought <ul><li>Will the winners be: </li></ul><ul><li>a) established commercial companies that capitalise on UGC to augment their data? </li></ul><ul><li>or </li></ul><ul><li>b) new competitors that commercialise UGC and augment these data to compete with established commercial systems? </li></ul>After Dobson (2008): http://www.wun.ac.uk/ggisa/seminars/archive/autumn08_program/index.html
  19. 20. References <ul><li>Dobson, M., 2008 , Data quality and neogeography , available to download from http://www.wun.ac.uk/ggisa/seminars/archive/autumn08_program/index.html , accessed 30 July 2009 </li></ul><ul><li>Gorman, S, 2008 , OpenStreetMap vs. Google/TeleAtlas Street Coverage , http://blog.fortiusone.com/2008/12/12/openstreetmap-vs-googleteleatlas-street-coverage/ , accessed 30 July 2009 </li></ul><ul><li>Haklay, M., 2008 , How good is OpenStreetMap information? A comparative study of OpenStreetMap and Ordnance Survey datasets for London and the rest of England , submitted to Environment and Planning B. </li></ul><ul><li>Maron, M., 2007 , U.S. Route 90 .. Katrina destroyed that bridge, but it’s still in Google maps! http://brainoff.com/weblog/2007/04/25/1246 , accessed 30 July 2009 </li></ul>Steve Chilton : Middlesex University : [email_address]

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