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Shawn Newsam Associate Professor and Founding Faculty Electrical Engineering & Computer Science

Social Multimedia as Volunteered Geographic Information: Crowdsourcing What-Is-Where Through Proximate Sensing. Shawn Newsam Associate Professor and Founding Faculty Electrical Engineering & Computer Science University of California at Merced California Geographic Information Association

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Shawn Newsam Associate Professor and Founding Faculty Electrical Engineering & Computer Science

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  1. Social Multimedia as Volunteered Geographic Information:Crowdsourcing What-Is-Where Through Proximate Sensing Shawn Newsam Associate Professor and Founding Faculty Electrical Engineering & Computer Science University of California at Merced California Geographic Information Association 3rd Annual Geospatial Summit UC Merced April 5, 2013

  2. Volunteered Geographic Information • Wikipedia: • Volunteered Geographic Information (VGI) is the harnessing of tools to create, assemble, and disseminate geographic data provided voluntarily by individuals (Goodchild, 2007).

  3. VGI: OpenStreetMap – Sept. 2009 • “OpenStreetMap is a free editable map of the whole world. It is made by people like you.”

  4. GoogleMaps – Sept. 2009

  5. VGI: Flickr • 178,016,405 geotagged items (Mar. 14, 2012)

  6. VGI: Flickr

  7. Social Multimedia as VGI • I stipulate that georeferenced social multimedia can be considered as a form of VGI. • Multimedia = images and video • It is a often a serendipitous form since its original purpose might not have been for geographic discovery. • Research challenge is how to extract useful geographic information in an automated fashion.

  8. Remote sensing: using overhead images of distant scenes to derive geographic information. satellite image (Google Maps) National Land Cover Database (USGS)

  9. community-contributed photos(Geograph Britain and Ireland project) study area: 100x100 km region in southeastern UK(region TQ in National Grid) Proximate sensing: use ground-level images of objects and scenes. Land Cover Map 2000(UK Centre for Ecology & Hydrology) ?

  10. Proximate sensing: use ground-level images of objects and scenes. community-contributed photos(Geograph Britain and Ireland project)

  11. Image Analysis

  12. Current Work: Land Use

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