Download - Crowd Soucing And VGI
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What Crowd Sourcing?Examples:
– Wikipedia– Open Source
Software e.g. Linux/GNU Runs iPhone
– Google Search: Skip
• Everyone benefits
Source: http://en.wikipedia.org/wiki/Clickworkers
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Map Crowd Sourcing: Hurricane Katrina• Forum Questions like: "Does anyone know about this block or this street?"
• Better on a Map, Created in an evening: “…Tons of markers and useful information”
• Scipionus.com
• Vandalism problemsSource: www.wired.com/software/coolapps/news/2005/09/68743 Image courtesy GISuser.com on Flickr
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Google Maps: Skip• Not all countries
have OS or AtoZ
• Volunteers can map their city and upload to Google
• Video
• Open Street Map as well (non-commercial)
Images Courtesy GeoWeb Conference http://bit.ly/6DW8I
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Importance of Mobile Devices: Skip• Twitter Snow
Map: Users twittered a code with a score for snow strength
• Google Earth Time Animation
• Problems:
– Population density, Sleeping, Scale
Images Courtesy Google. Video at www.youtube.com/watch?v=5bgrn17udUs