Introduction to Geo Hacking.

2. INTODUCTION TO GEO
HACKING
PRAJWAL BS, OPENHACKDAY, BANGALORE 30th MARCH OF 2011

4. LOCATION AWARENESS FOR A BETTER LIVING!
• Navigation
• Surveying
• Business process
• Warehouse and routing
• Consumer

5. WHAT YAHOO OFFERS
Placefinder
YQL Geo and WOEIDs
Placemaker
Other location-centric data
 Locals, Traffic, Maps & Weather.

6. LOCATION IS NOT JUST (LAT,LON)
• Introducing WOEIDs
• Location as a complex object
• And sometimes it is hidden
*WOEID – Where On Earth ID.
h0p://developer.yahoo.com/geo/geoplanet/guide/concepts.html#woeids

7. CONTEXTS FOR A LOCATION
• Job opportunities
• Deals
• News portal
• Matrimonial Advertisements

8. GEO HACKING
• GOOD NEWS! - Not hard to do.
• YQL as always has a solution to
most geo problems.

9. REQUIREMENTS
• Finding current location.
• Turning a location into a place.
• Finding geographical hierarchy.
• Geo-tagging information.
• Displaying geo information.

10. THE CREEPY WAY – IP SNIFFING

11. IP SNIFFING

12. EXAMPLE
h0p://isithackday.com/hacks/geo/js‐locaDon.html

13. NON CREEPY AND MORE ACCURATE W3C
GEOLOCATION API

14. EXAMPLE

15. USERS SOCIAL PRESENCE
• Get location information from users social
presence.
• FireEagle, Twitter, Yahoo, Brightkite,
Facebook, Foursquare, Gowalla etc.

16. LOCATION BROKERAGE - FIREEAGLE

17. FIREEAGLE – API’S

18. REQUIREMENTS
• Finding current location.
• Turning a location into a place.
• Finding geographical hierarchy.
• Geo-tagging information.
• Displaying geo information.

19. GEOCODING AND REVERSE-GEOCODING
converting street addresses or place
names into geographic coordinates
(and vice versa).
h0p://developer.yahoo.com/yql/console/#h=desc%20geo.placefinder

20. PLACEFINDER

21. PLACEFINDER RESULT
h0p://developer.yahoo.com/geo/placefinder/

22. REQUIREMENTS
• Finding current location.
• Turning a location into a place.
• Finding geographical hierarchy.
• Geo-tagging information.
• Displaying geo information.

23. YQL GEO.PLACES.*
• geo.places.ancestors
• geo.places.belongtos
• geo.places.children
• geo.places.common
• geo.places.descendants
• geo.places.neighbors
• geo.places.parent
• geo.places.siblings

24. GEO-PLANET EXPLORER
h0p://isithackday.com/geoplanet‐explorer/geodrilldown.php

25. REQUIREMENTS
• Finding current location.
• Turning a location into a place.
• Finding geographical hierarchy.
• Geo-tagging information.
• Displaying geo information.

26. PLACEMAKER
Takes text/web URL and
extracts the geographical
information from it.
SELECT * FROM
geo.placemaker WHERE
documentContent = "Hey, I
am in bangalore now. Will
visit mumbai and delhi
before going back to
sunnyvale" AND
documentType="text/plain"

27. EXAMPLES
SELECT * FROM geo.placemaker WHERE
documentURL = "http://en.wikipedia.org/wiki/
Country" AND documentType="text/html”
SELECT * FROM geo.placemaker WHERE
documentURL = "http://
timesofindia.feedsportal.com/c/33039/f/533917/
index.rss" AND documentType="text/rss"
h0p://developer.yahoo.com/geo/placemaker/

28. REQUIREMENTS
• Finding current location.
• Turning a location into a place.
• Finding geographical hierarchy.
• Geo-tagging information.
• Displaying geo information.

29. PLOT LAT/LON ON YAHOO MAPS!

31. USEFUL LINKS
http://isithackday.com/hacks/geo/
http://isithackday.com/geoplanet-explorer/
http://isithackday.com/hacks/geo/yql-geo-library/
http://www.hostip.info/

32. LETS LOCATE YOUR HACK!
THANKS!!
If you throw a guy on Foursquare and a guy on Twitter off a cliff, which one
would hit the ground first?
The guy on Twitter. The guy on Foursquare would have to stop halfway down to
check in!
PRAJWAL BS
Twitter - @prajwalbs
Slideshare - http://www.slideshare.net/prajwalbs
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