1. 1. 1 / 41 ArnaudArnaud VandecasteeleVandecasteele Vincent HerbreteauVincent Herbreteau Kraichat TantrakarnapaKraichat Tantrakarnapa New practices inNew practices in the use of spatial data,the use of spatial data, with an insightwith an insight for health studiesfor health studies
2. 2. 2 / 41 Speakers Arnaud VandecasteeleArnaud Vandecasteele PhD in Geomatics, France Post-Doc in Geomatics, Canada (Open) Researcher Owner of Mapali company Vincent herbreteauVincent herbreteau PhD in Health geography, France Researcher at IRD, France
3. 3. 3 / 41 I have a (geo) dream To have a free accessfree access to all theall the datadata needed for my research To be able to easily collecteasily collect and processprocess my geographic data To improve current researchimprove current research by making my datadata available to everyoneavailable to everyone
4. 4. 4 / 41 Summary What is Volunteered Geographic Information (VGI)1 Focus on OpenStreetMap2 New VGI trends3
5. 5. 5 / 41 VVolunteeredolunteered GGeographiceographic IInformationnformation
6. 6. 6 / 41 RULE 1RULE 1 FUNFUN MAPSMAPS SHOULD BE MAKING VGI rules What is VGI ? Focus on OSM New VGI trends
7. 7. 7 / 41 RULE 2RULE 2 EASYEASY MAPSMAPS SHOULD BE MAKING VGI rules What is VGI ? Focus on OSM New VGI trends
8. 8. 8 / 41 RULE 3RULE 3 USEFULUSEFUL MAPSMAPS SHOULD BE MAKING VGI rules What is VGI ? Focus on OSM New VGI trends
9. 9. 9 / 41 http://www.youtube.com/watch?v=eAFG6aQTwPkhttp://www.youtube.com/watch?v=eAFG6aQTwPk The old way of doing maps What is VGI ? Focus on OSM New VGI trends
10. 10. 10 / 41 INTERFACESTOOLSDATA No interoperability No standards Not appropriate Very complicated interface The old way of doing maps What is VGI ? Focus on OSM New VGI trends
11. 11. 11 / 41 VVolunteeredolunteered GGeographiceographic IInformationnformation The widespreadThe widespread engagementengagement of large numbers of privateof large numbers of private citizenscitizens,, often withoften with littlelittle in the wayin the way of formalof formal qualificationsqualifications,, in thein the creation of geographic informationcreation of geographic information Goodchild (2007) Fortunately, things have changed What is VGI ? Focus on OSM New VGI trends
12. 12. 12 / 41 VGI Citizen ScienceCitizen Science Source : http://povesham.wordpress.com Muki Haklay, Citizen Science and Volunteered Geographic Information: Overview and Typology of Participation. 2013 Reconnecting science with civil societyReconnecting science with civil society What is VGI ? Focus on OSM New VGI trends
13. 13. 13 / 41 Google Map Maker http://www.google.fr/mapmaker OpenStreetMap http://www.openstreetmap.org Facebook Places https://www.facebook.com/places/ WikiMapia http://wikimapia.org Examples of VGI projectsExamples of VGI projects What is VGI ? Focus on OSM New VGI trends
14. 14. 14 / 41 Do you know that you are producing geographic information ? Are the data produced publicly available ? CContributedontributed GGeographiceographic IInformationnformation VVolunteeredolunteered GGeographiceographic IInformationnformation Volunteering comes with an explicit understandingexplicit understanding of whatwhat we are contributing, howhow we are contributing, and future possibilitiesfuture possibilities of the collected informations use Francis Harvey (2013)Francis Harvey (2013) Not all VGI projects are the sameNot all VGI projects are the same What is VGI ? Focus on OSM New VGI trends
15. 15. 15 / 41 Citizen involvementCitizen involvement Example of VGI (health) applicationExample of VGI (health) application What is VGI ? Focus on OSM New VGI trends
16. 16. 16 / 41 Humanitarian applicationsHumanitarian applications Example of VGI (health) applicationExample of VGI (health) application What is VGI ? Focus on OSM New VGI trends
17. 17. 17 / 41 Focus on OpenStreetMap
18. 18. 18 / 41 The Wikipedia of mapsThe Wikipedia of maps + = OpenStreetMapWikipedia OSM is a collaborativecollaborative project to create a freefree editable map of the worldmap of the world What is OpenStreetMap (OSM) ?What is OpenStreetMap (OSM) ? What is VGI ? Focus on OSM New VGI trends
19. 19. 19 / 41 A feature = Geometry + Attributes Node Line Polygon amenityamenity = drinking_water= drinking_water highwayhighway = primary= primary buildingbuilding = yes= yes OSM Data SchemaOSM Data Schema What is VGI ? Focus on OSM New VGI trends
20. 20. 20 / 41 polygonpolygon Attributes :Attributes : buildingbuilding = yes= yes namename = music= music lineline Attributes :Attributes : highwayhighway = primary= primary namename = Allandale Road= Allandale Road OSM Data SchemaOSM Data Schema What is VGI ? Focus on OSM New VGI trends
21. 21. 21 / 41 Source: http://wiki.openstreetmap.org/wiki/Stats + 2.1 million + 2.8 billion nodes + 286 million ways + 4.6 billion of GPS point Started in 2004 Does it really work ?Does it really work ? What is VGI ? Focus on OSM New VGI trends
22. 22. 22 / 41 Source: http://www.geofabrik.de April 2007April 2007 Paris: August 2006Paris: August 2006 April 2008April 2008 Dec 2008Dec 2008 Sept 2009Sept 2009 Dec 2010Dec 2010 Froma blank space...Froma blank space... What is VGI ? Focus on OSM New VGI trends
23. 23. 23 / 41 http://vimeo.com/2598878http://vimeo.com/2598878 To a world wide projectTo a world wide project What is VGI ? Focus on OSM New VGI trends
24. 24. 24 / 41 A map better than some others providers !A map better than some others providers ! What is VGI ? Focus on OSM New VGI trends
25. 25. 25 / 41 We started with absolutely nothing, a completely blank canvas [...] Now most of the world has been mapped, in varying degrees of detail, and can be viewed on openstreetmap.org Steve CoastSteve Coast Creator of theCreator of the OSMOSM projectproject From only one person...From only one person... What is VGI ? Focus on OSM New VGI trends
26. 26. 26 / 41 YOU !YOU ! To a community of practice !To a community of practice ! What is VGI ? Focus on OSM New VGI trends
27. 27. 27 / 41 Day 1Day 1 Day 3Day 3 Day 28Day 28 20102010 OSM use cases: The Haiti earthquakeOSM use cases: The Haiti earthquake What is VGI ? Focus on OSM New VGI trends
28. 28. 28 / 41 Map Information Data from OpenStreetMapOpenStreetMap, GAUL, SRTM and JRC OSM use cases: The Haiti earthquakeOSM use cases: The Haiti earthquake What is VGI ? Focus on OSM New VGI trends
29. 29. 29 / 41 Engaging local peopleEngaging local people What is VGI ? Focus on OSM New VGI trends
30. 30. 30 / 41 With VGI, creating geodata isWith VGI, creating geodata is no longer expensiveno longer expensive,, much more sustainablemuch more sustainable than other models,than other models, scope forscope for greater detailgreater detail,, more timely updatesmore timely updates In summaryIn summary What is VGI ? Focus on OSM New VGI trends
31. 31. 31 / 41 NewNew VGIVGI trendstrends
32. 32. 32 / 41 New dataset : Open Drone MapNew dataset : Open Drone Map What is VGI ? Focus on OSM New VGI trends
33. 33. 33 / 41 New dataset : Open Submarine MapNew dataset : Open Submarine Map What is VGI ? Focus on OSM New VGI trends
34. 34. 34 / 41 New dataset : Open Street ViewNew dataset : Open Street View What is VGI ? Focus on OSM New VGI trends
35. 35. 35 / 41 VGI Data QualityVGI Data Quality What is VGI ? Focus on OSM New VGI trends
36. 36. 36 / 41 VGI Data QualityVGI Data Quality What is VGI ? Focus on OSM New VGI trends Ballatore, 2012
37. 37. 37 / 41 Two entities are similar if : 1 They are referenced by similar entities 2 They reference similar entities P-Rank Algorithm landuse = forest natural = wood natural = tree wood = mixed landuse = forest natural = wood landuse = forest natural = wood natural = tree VGI Data QualityVGI Data Quality What is VGI ? Focus on OSM New VGI trends
38. 38. 38 / 41 Highway = traffic_signalHighway = traffic_signal VGI Data QualityVGI Data Quality What is VGI ? Focus on OSM New VGI trends
39. 39. 39 / 41 Sui D., Elwood S., and Goodchild M. Crowdsourcing Geographic Knowledge Volunteered Geographic Information (VGI) in Theory and Practice. Springer, 2013 Jamal Jokar Arsanjani, Alexander Zipf, Peter Mooney, Marco Helbich OpenStreetMap in GIScience Experience, Research and Applications Springer, 2015 ConclusionConclusion Interesting VGI Readings (scientific)Interesting VGI Readings (scientific)
40. 40. 40 / 41 Bennett J. OpenStreetMap Be your own cartographer. Packt Publishing, 2010 Ramm F., Topf J., and Chilton S. OpenStreetMap Using and enhancing the free map of the world UIT Cambridge, 2010 ConclusionConclusion Interesting VGI ReadingsInteresting VGI Readings
41. 41. 41 / 41 http://learnosm.org LearnOSM http://learnosm.org OSM Wiki http://wiki.openstreetmap.org/wiki/ ConclusionConclusion WebsitesWebsites