Location to geocode Anatoliy Kim May 6 th

Agenda § Geo-coding § Data sources § Proposed system 2 COPYRIGHT © 2009, Cognitive

Definition § Geocoding is the process of finding associated geographic coordinates (often expressed as

Data sources § § Open Street Map Geonames. org TIGER (US only) Wikipedia 4

Open. Street. Map § Nominatim – search tool for Open. Street. Map project §

Geonames. org § The Geo. Names geographical database covers all countries and contains over

US Census dataset / TIGER § Topologically Integrated Geographic Encoding and Referencing system §

Wikipedia § Some articles in Wikipedia are geocoded. § Download 8 COPYRIGHT © 2009,

Google Maps § Native to Android § Integrate all other sources into Google Maps

System OSM result Geonames no result no Wikipedia result no answer Google Maps 10

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Location to geo-code Anatoliy Kim May 6 th, 2011

Definition § Geocoding is the process of finding associated geographic coordinates (often expressed as latitude and longitude) from other geographic data, such as street addresses, or zip codes (postal codes). § With geographic coordinates the features can be mapped and entered into Geographic Information Systems, or the coordinates can be embedded into media such as digital photographs via geotagging. 3 COPYRIGHT © 2009, Cognitive Informatics LAB, ALL RIGHTS RESERVED. 2021 -12 -14

Open. Street. Map § Nominatim – search tool for Open. Street. Map project § URL: http: //nominatim. openstreetmap. org/ § Parameters § § § format=[html|xml|json] q=<query> viewbox=<left>, <top>, <right>, <bottom> addressdetails=[0|1] limit=<integer> § Example § http: //nominatim. openstreetmap. org/search? q=135+pilkingt on+avenue, +birmingham&format=xml&polygon=1&addres sdetails=1 5 COPYRIGHT © 2009, Cognitive Informatics LAB, ALL RIGHTS RESERVED. 2021 -12 -14

Geonames. org § The Geo. Names geographical database covers all countries and contains over eight million placenames that are available for download free of charge. § all. Countries. zip – txt file, 884 Mb § Free download § Need to convert to database for usage 6 COPYRIGHT © 2009, Cognitive Informatics LAB, ALL RIGHTS RESERVED. 2021 -12 -14

US Census dataset / TIGER § Topologically Integrated Geographic Encoding and Referencing system § URL: http: //www. census. gov/geo/www/tiger/tgrshp 2010. html § Detailed US geographical info § Need to convert to usable format after downloading 7 COPYRIGHT © 2009, Cognitive Informatics LAB, ALL RIGHTS RESERVED. 2021 -12 -14