Interlinking Openstreetmap and Wikimedia How to Take Advantage of URL Interlinking to List and Describe Geographical Objects “ Where Do You Want to Go To?

Interlinking OpenStreetMap and Wikimedia How to take advantage of URL interlinking to list and describe Geographical objects “ Where do you want to go to?

Alice in Wonderland… ”

Would you tell me, please, which way I ought to go from here?' 'That depends a good deal on where you want to get to,' said the Cat. 'I don't much care where —' said Alice. 'Then it doesn't matter which way you go,' said the Cat Motivation and Goal

De Wikimedia en OpenStreetMap (OSM) organisatie en vrijwilligers delen heel wat principes. Het zou goed zijn als gemeenschappelijke projecten kunnen worden opgezet en ondersteund. Wikipedia, Wikidata en Wikimedia Commons kunnen worden gebruikt samen met OpenStreetMap om onderlinge linken vast te leggen en te tonen. Wikimedia objecten kunnen worden gekoppeld in OpenStreetMap via node tags (labels, key-value pairs).

Dit laat toe om nog meer metadata, beschrijvingen en multimedia te verzamelen en te documenteren over geografische objecten. OpenStreetMap interactieve kaarten kunnen worden getoond in Wikipedia-artikels. Wikidata kan doorverwijzen naar OSM objecten. Who am I

Geert Van Pamel

 Wikipedian since 2005  Member of WMNL since 2012  Contributing to OpenStreetMap since 2013  Living in Belgium (Vlaams Brabant)  President of Wikimedia Belgium  Professionally working with Geospatial and Big data systems  Developer for Open source projects (Asterisk PBX); loving Linux The Communities About the Organisations OpenStreetMap Wikimedia OpenStreetMap and Wikimedia

“We” have a lot in common:  Similar technology  Open Knowledge  Similar organisations  Open data  Volunteers  A lot of volunteers  Projects  Databases  Why not collaborate?  Community websites  Use each others’ objects!  Performant systems  A worldwide organisation OpenStreetMap System architecture and objects Graphical Editors Rendering OpenStreetMap Architecture

 Geographic/geospatial tool and  Database driven database  Query tool(s)  Multiple (web) Editors depending on  Map production, and GUIs complexity

 Objects = nodes = way

 Open source, Open data  Multiple Coordinate systems (in the background)  Worldwide organisations  Aerial images (Google, Bing, AGIV)  Projects and volunteers  Yearly conference(s) OpenStreetMap Objects

Object Examples (Nodes) (way)Point amenities, monuments, shops, services

Line rivers, roads, walls, fences

Polygon buildings, land lots, industrial zones, landuse, forests, agriculture, lake

 Locations: coordinate EPSG systems & Projections  Attributes & Values: object type, name, address, characteristics  … Entities, attributes, relationships  … Generic data model ~ Wikidata  Pictograms OpenStreetMap Editors Editor Platform Complexity Functionality • (good quality) AGIV aerial images iD Browser Intermediate • Easily create roads, buildings, land use • Add labels (key/values) • Bing aerial images Browser and • Choose icons Potlatch Adobe Flash- Simple • Drag and drop player • Show coordinates • Requires special Java client application JOSM Remote Java 8 Complex • Requires additional software, Control infrastructure, training • You can work offline • For experts - Very fast Standalone • You can download one or multiple tiles Merkaartor Linux application • With subsequent merge and synchronisation • Very efficient when you need to update a lot of nodes OsmAnd Android Easy • Add POI Map Rendering

Offline / online / device specific  Web browsers  Android tablet, iPad, smartphone; OsmAnd  (vector) Tiles and (automatic, manual) map download

 Multiple layers (car, bike, foot, ski, tourism, thematic)  Depending on scale (omitting details)

 Intersystem linking  Apps Link from OSM wiki to Wikipedia

 https://wiki.openstreetmap.org/wiki/Collaboration_with_Wikipedia

 https://wiki.openstreetmap.org/wiki/Mapping_projects

 Template:Place Wikimedia All applications and services built on MediaWiki Wikimedia

 Wikipedia  Wikimedia Commons  Wikidata

 MediaWiki: the application software

 Volunteers and Projects  Servers and databases  The organisation Examples A picture is better than a 1000s words OpenStreetMap Linking

 https://www.openstreetmap.org/way/24747745

 Technique: via dedicated key-value attributes and relationships landuse cemetery name Kerkhof Mollem wikidata Q23002588

Category:Mollem wikimedia_commons Communal Cemetery

nl:Begraafplaats van wikipedia Mollem

OpenStreetMap Linking

 https://www.openstreetmap.org/way/24747745

 Technique: via dedicated key-value attributes and relationships landuse cemetery name Kerkhof Mollem wikidata Q23002588

Category:Mollem wikimedia_commons Communal Cemetery

nl:Begraafplaats van wikipedia Mollem

OpenStreetMap Linking

 https://www.openstreetmap.org/way/24747745

 Technique: via dedicated key-value attributes and relationships landuse cemetery name Kerkhof Mollem wikidata Q23002588

Category:Mollem wikimedia_commons Communal Cemetery

nl:Begraafplaats van wikipedia Mollem

Wikipedia static Linking

https://nl.wikipedia.org/wiki/Bagaya#/media/File:Osm_bagaya_casamance_senegal_2013.png By OpenStreetMap node

https://www.openstreetmap.org/node/4314615941 Wikipedia dynamic Linking

 https://nl.wikipedia.org/wiki/Esino_Lario (click “Kaart”) Wikimedia Tools Server

Interactive maps

http://tools.wmflabs.org/geohack/geohack.php?language=it&p agename=Esino_Lario¶ms=45.993889_N_9.333056_E_typ e:adm3rd_scale:1000000&title=Esino+Lario

• Automatic tiling • Automatic scaling • Automatic details Wikimedia Commons

https://commons.wikimedia.org/wiki/File:Entrance_WMCON_2016_Berlin.jpg http://www.openstreetmap.org/?#map=15/52.5030/13.3837&layers=T Wikimedia Commons Linking

 https://commons.wikimedia.org/wiki/Category:OpenStreetMap

 https://commons.wikimedia.org/wiki/Category:OpenStreetMap_maps

 https://commons.wikimedia.org/wiki/Category:OpenStreetMap_templates Wikidata Linking

OpenStreetMap relatie- OpenStreetMap-tag of – identificatiecode sleutelwoord

 https://www.wikidata.org/wiki/Property:P402  https://www.wikidata.org/wiki/Property:P1282

 https://www.openstreetmap.org/relation/$1  https://wiki.openstreetmap.org/wiki/$1

 Example: https://www.wikidata.org/wiki/Q64  Example: https://www.wikidata.org/wiki/Q1501 (Berlijn) (zwembad)  https://www.openstreetmap.org/relation/62422  https://wiki.openstreetmap.org/wiki/Tag:leisure% 3Dswimming_pool Wikidata Example

 https://www.wikidata.org/wiki/Q26995804

 Name: “State of the Map”

 Commonscategorie: State of the Map

 Leading to:  https://commons.wikimedia.org/wiki/Category:State%20of%20the%20Map Restrictions You need IDs

 You need IDs:

 OpenStreetMap Node IDs  Wikidata Q-IDs  Wikipedia Lemma names  Wikimedia Commons File names A stable Marriage?

 Wikimedia (page) IDs are stable

 OpenStreetMap object IDs (nodes) are not always stable  Whenever an update of a node is performed, the ID might change … Depending on the type of edit (split/delete/recreate) Client Applications

Basic question: “What is in the neighbourhood?”

 Web interface https://www.openstreetmap.org

 Show Wikipedia articles, photo’s based on geolocation

 OpenSeaMap  Android App:  OsmAnd (paying version)  Magic Earth Pro (free version) OpenSeaMap

 http://map.openseamap.org/?zoom=6&lat=52.099054&lon=5.078365&layers=BFTFFFTFFTT0FFF

Magic Earth Pro (Android)

Geographical Inventories

 Wikidata: Nice multilingual search engine  Wikimedia Commons Category: Media files  Wikipedia: Encyclopedia

 Use Categories Indexing (hierarchy)

 Forward/Backward search: from names to geocoordinates and back  GeoNames http://www.geonames.org  Nominatum http://nominatim.openstreetmap.org Useful Links

 https://www.openstreetmap.org  https://taginfo.openstreetmap.org  https://www.openstreetmap.org  http://wiki.openstreetmap.org/wiki/Collaboration_with_Wikipedia

 http://www.geonames.org  http://nominatim.openstreetmap.org

 https://nl.wikipedia.org  https://commons.wikimedia.org  https://www.wikidata.org Documentation

 https://wiki.openstreetmap.org/wiki/Main_Page  …

 https://nl.wikipedia.org/wiki/Help:OpenStreetMap  https://nl.wikipedia.org/wiki/Help:Externe_kaarten  … Any Questions? Contact

Geert Van Pamel https://nl.wikipedia.org/wiki/Gebruiker:Geertivp mailto:[email protected]

Twitter @Geertivp

Was ik metselaar dan was Linux mijn truweel This Presentation

 Interlinking OpenStreetMap and Wikimedia  https://commons.wikimedia.org/wiki/File:WCN_2016_Interlinking_OpenStreetMap_and_Wikimedia.pdf

 Geert Van Pamel  Utrecht WCN 19/11/2016

 Wikimedia Conferentie Nederland 2016 Other interesting Presentations

 https://commons.wikimedia.org/wiki/File:Wikidata_and_Persistent_Identifiers.pdf Acknowledgements

 Tim Berners-Lee to provide us with the wonderful technique of interlinking web pages with URL  OpenStreetMap for their servers  Wikidata for stimulating my imagination  My Linux servers, for allowing me to experiment  Raspberry Pi 3/Raspbian running a local MediaWiki server References

1. https://commons.wikimedia.org/wiki/File:Openstreetmap_logo.svg 2. https://commons.wikimedia.org/wiki/File:Wikimedia_logo_family_complete-2013.svg 3. https://en.wikiquote.org/wiki/Alice%27s_Adventures_in_Wonderland 4. https://commons.wikimedia.org/wiki/File:State_of_the_Map_2016_group_photo.jpg 5. https://commons.wikimedia.org/wiki/File:Wikimania_2016_-_group_photo_02.jpg 6. https://nl.wikipedia.org/wiki/Bagaya#/media/File:Osm_bagaya_casamance_senegal_2013.png 7. https://www.openstreetmap.org/node/4314615941 8. https://commons.wikimedia.org/wiki/File:Entrance_WMCON_2016_Berlin.jpg 9. http://www.openstreetmap.org/?#map=15/52.5030/13.3837&layers=T 10. https://commons.wikimedia.org/wiki/File:Wikipedia-logo-en.png