Ce diaporama a bien été signalé.
Nous utilisons votre profil LinkedIn et vos données d’activité pour vous proposer des publicités personnalisées et pertinentes. Vous pouvez changer vos préférences de publicités à tout moment.
OpenStreetMap: It’s
the community,
stupid!
Marc Gemis
Jorieke Vyncke
Ben Abelshausen
Glenn Plas
OpenStreetMap Belgium
23/0...
Mapping the
entire world!
Why would we need
OpenStreetMap in a world where
all (geo)data is open?
One global database?
One global ontology?
Huge eco...
It’s the community, stupid!
What is this ‘community’ you say?
Crowdsourcing ≠ community
What is this ‘community’ you say?
OpenStreetMap uses active
crowdsourcing!
Session Overview
•Marc Gemis: The mapper at the core of the project .
•Jorieke Vyncke: Community activities, a mapper is
n...
Open(Geo)Data and
OpenStreetMap
Ben Abelshausen
23/02/2015
Namur
Warning: This presentation has MAPS!
Imports!
Why is this an issue?
Let’s just import
everything!!!
Community vs.
‘External’ data
Why would we want
to import?
A few exceptions:
- Borders
- Bus routes
- Cycle routes
Types of abstract data that does not really
physically exists!
A lot of pressure…
AND Import…
Tiger in the US
• The entire US road network
• At the time almost non-existing OSM-community!
TIGER desert
“The term "TIGER desert" has been coined referring to areas where
little or no editing of TIGER imported data...
From an OpenStreetMap point
of view external data is usually
inaccurate and wrong about
the world.
All these experiences and
views shape the import-
process…
A review process!
• Checking license
• Checking consistency
• Estimating quality
• Data conversion to OpenStreetMap
• Upda...
An import should be: Putting a
community-approved stamp
on the data!
Community
Approved!
Crowd-sourced imports!
Use the power of OSM-community to
approve and stamp the data!
Mapper
Approved!
Urbis
• Brussels
• Addresses and buildings.
• A community-sourced import but in large chuncks.
De Lijn
Two aspects:
- Stops: The position of the stops.
- Routes: Abtract non-physical data.
A great example of why not t...
AGIV CRAB
• A huge dataset of addresses!
• A ‘not-always-accurate’ dataset.
• A dataset collected by localgovernments mana...
Thank you!
OpenStreetMap Belgium!
Follow us @osm_be
www.osm.be
Next meetup/mapping party:
http://www.meetup.com/OpenStreet...
Who are you calling
stupid?
Is it really the
community?
Comments?
(this is the active crowdsourcing part of this talk. We rely
on your knowledge and expertise to fill this blank ...
A monopoly on place?
Should we only rely on companies and governments to map the world? [1]
(this is the active crowdsourc...
A monopoly on place?
Who decides what gets shown on the map, who decides where you are and
where you should go, and person...
Local governments using
private maps?
Who decides what is on google/bing/HERE maps?
(this is the active crowdsourcing part...
A map = power!
Where is it dangerous?
Where does a neighbourhood begin?
Borders and border disputes!
Routing or cycling di...
OpenStreetMap as the
solution?
Yes, BUT!
Does the community represent the population?
(this is the active crowdsourcing pa...
Diversity is crucial!
… and more important for OSM than many other problems.
(this is the active crowdsourcing part of thi...
Thank you!
OpenStreetMap Belgium!
Follow us @osm_be
www.osm.be
Next meetup/mapping party:
http://www.meetup.com/OpenStreet...
Open(geo)data and open streetmap by Ben abelshausen
Open(geo)data and open streetmap by Ben abelshausen
Open(geo)data and open streetmap by Ben abelshausen
Open(geo)data and open streetmap by Ben abelshausen
Open(geo)data and open streetmap by Ben abelshausen
Prochain SlideShare
Chargement dans…5
×

Open(geo)data and open streetmap by Ben abelshausen

606 vues

Publié le

Ben Abelshausen on the OSM-Community during the OpenStreetMap break-out session at Open Belgium 2015.

Publié dans : Données & analyses
  • Soyez le premier à commenter

  • Soyez le premier à aimer ceci

Open(geo)data and open streetmap by Ben abelshausen

  1. 1. OpenStreetMap: It’s the community, stupid! Marc Gemis Jorieke Vyncke Ben Abelshausen Glenn Plas OpenStreetMap Belgium 23/02/2015
  2. 2. Mapping the entire world!
  3. 3. Why would we need OpenStreetMap in a world where all (geo)data is open? One global database? One global ontology? Huge ecosystem of tools?
  4. 4. It’s the community, stupid!
  5. 5. What is this ‘community’ you say? Crowdsourcing ≠ community
  6. 6. What is this ‘community’ you say? OpenStreetMap uses active crowdsourcing!
  7. 7. Session Overview •Marc Gemis: The mapper at the core of the project . •Jorieke Vyncke: Community activities, a mapper is never alone! •Ben Abelshausen: External data and the community, yes, they can be friends! •Glenn Plas: Data users? Part of the community?
  8. 8. Open(Geo)Data and OpenStreetMap Ben Abelshausen 23/02/2015 Namur Warning: This presentation has MAPS!
  9. 9. Imports!
  10. 10. Why is this an issue? Let’s just import everything!!!
  11. 11. Community vs. ‘External’ data Why would we want to import?
  12. 12. A few exceptions: - Borders - Bus routes - Cycle routes Types of abstract data that does not really physically exists!
  13. 13. A lot of pressure…
  14. 14. AND Import…
  15. 15. Tiger in the US • The entire US road network • At the time almost non-existing OSM-community!
  16. 16. TIGER desert “The term "TIGER desert" has been coined referring to areas where little or no editing of TIGER imported data has been done for an extended period of time — or at all since import (period of inactivity measured in years).”
  17. 17. From an OpenStreetMap point of view external data is usually inaccurate and wrong about the world.
  18. 18. All these experiences and views shape the import- process…
  19. 19. A review process! • Checking license • Checking consistency • Estimating quality • Data conversion to OpenStreetMap • Update strategy. => All these conditions have to be met! => All this is peer-reviewed by the community.
  20. 20. An import should be: Putting a community-approved stamp on the data! Community Approved!
  21. 21. Crowd-sourced imports! Use the power of OSM-community to approve and stamp the data! Mapper Approved!
  22. 22. Urbis • Brussels • Addresses and buildings. • A community-sourced import but in large chuncks.
  23. 23. De Lijn Two aspects: - Stops: The position of the stops. - Routes: Abtract non-physical data. A great example of why not to blindly trust company/government collected data. De Lijn has used some of the corrected locations: A great example of how OpenStreetMap-community can help improve your own datasets.
  24. 24. AGIV CRAB • A huge dataset of addresses! • A ‘not-always-accurate’ dataset. • A dataset collected by localgovernments managed at the flanders level. • Is in need of review and community-stamping! • Is continously changing and being updated. • BUT: relatively easy to check and verify. • An address monitoring tool is used to track progress.
  25. 25. Thank you! OpenStreetMap Belgium! Follow us @osm_be www.osm.be Next meetup/mapping party: http://www.meetup.com/OpenStreetMap-Belgium/ OpenStreetMap Belgium is a working group @ Open Knowledge Belgium
  26. 26. Who are you calling stupid? Is it really the community?
  27. 27. Comments? (this is the active crowdsourcing part of this talk. We rely on your knowledge and expertise to fill this blank spot in this session)
  28. 28. A monopoly on place? Should we only rely on companies and governments to map the world? [1] (this is the active crowdsourcing part of this talk. We rely on your knowledge and expertise to fill this blank spot in this session)
  29. 29. A monopoly on place? Who decides what gets shown on the map, who decides where you are and where you should go, and personal privacy. [1] (this is the active crowdsourcing part of this talk. We rely on your knowledge and expertise to fill this blank spot in this session)
  30. 30. Local governments using private maps? Who decides what is on google/bing/HERE maps? (this is the active crowdsourcing part of this talk. We rely on your knowledge and expertise to fill this blank spot in this session)
  31. 31. A map = power! Where is it dangerous? Where does a neighbourhood begin? Borders and border disputes! Routing or cycling directions along certain neighbourhoods? A map simplifies the world, what will we show about reality?! (this is the active crowdsourcing part of this talk. We rely on your knowledge and expertise to fill this blank spot in this session)
  32. 32. OpenStreetMap as the solution? Yes, BUT! Does the community represent the population? (this is the active crowdsourcing part of this talk. We rely on your knowledge and expertise to fill this blank spot in this session)
  33. 33. Diversity is crucial! … and more important for OSM than many other problems. (this is the active crowdsourcing part of this talk. We rely on your knowledge and expertise to fill this blank spot in this session)
  34. 34. Thank you! OpenStreetMap Belgium! Follow us @osm_be www.osm.be Next meetup/mapping party: http://www.meetup.com/OpenStreetMap-Belgium/ OpenStreetMap Belgium is a working group @ Open Knowledge Belgium

×