Martijn van Exel

44 Followers

13 SlideShares 44 Followers 11 Followings

13 SlideShares 44 Followers 11 Followings

openstreetmap wherecampeu dataquality crowdsourcing wceu sotm stateofthemap osm iphone flook lbs mobile sociallocation foursquare gowalla gis brightkite openplacesplatform gemeente heidesessie img100k maproulette opendata open data mapquality visualization geography opengeodata mapping vgi quality twitter history wherecamp sotm11 state of the map

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OpenStreetMap Netherlands Since AND import

17 years ago • 438 Views

OpenStreetMap voor IMG100k

16 years ago • 402 Views

Open Places Platform

15 years ago • 363 Views

Zen of Map Quality

15 years ago • 570 Views

OpenStreetMap and the Art of Motorcycle Maintenance

15 years ago • 639 Views

Quality assessment for crowdsourced geographic information

14 years ago • 633 Views

Crowdsourcing

14 years ago • 460 Views

110527 osmadd-wherecampeu

14 years ago • 430 Views

Dealing with historical data in OpenStreetMap

14 years ago • 1143 Views

Insert Coin To Play

13 years ago • 1989 Views

OpenStreetMap

13 years ago • 1620 Views

The Golden Age of GIS - Keynote for GIS day 2019

5 years ago • 66 Views

MapRoulette Cooperative Challenges

4 years ago • 111 Views

openstreetmap wherecampeu dataquality crowdsourcing wceu sotm stateofthemap osm iphone flook lbs mobile sociallocation foursquare gowalla gis brightkite openplacesplatform gemeente heidesessie img100k maproulette opendata open data mapquality visualization geography opengeodata mapping vgi quality twitter history wherecamp sotm11 state of the map

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