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The Explosion of Geodata Ben Dowling WhereCampEU 2010
Loads of Data! There is so much geodata available now.  Where has it all come from?
Where is it from? Data has been collected by organisations or dedicated volunteers and made publicly available: ,[object Object]
Data.gov.uk
Open street map
What about the rest? The “explosion” though has come from crowdsourced geo-tagged data
We know where you are! With automatic location detection actions can be geo-tagged without requiring any effort from the user.
While your out and about A significant amount of mobile phones are now location aware ,[object Object],Location detection technologies include: ,[object Object]
Base station triangulation
WiFi positioning (SkyHook)
When your at home There are PC based technologies to work out where you are when you're at home: ,[object Object]
FireEagle
WiFi (Skyhook)
W3C Geolocation
What's being geo-tagged? ,[object Object]
POIs (Gowalla, FourSquare, Yelp!, Qype)
Photos (Flickr)

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The Explosion of Geodata