Semantic mapping with MediaWiki Jeroen De Dauw

Presentation outline Introduction to MediaWiki Introduction to Semantic MediaWiki – Questions Maps Semantic Maps – Questions

MediaWiki

Key features

MediaWiki

Key features Everyone can edit

MediaWiki

Key features Everyone can edit Rich content Organization Customization Internationalization Scalable

MediaWiki

Semantic Web So what are semantics? Make data understandbale for computers Make queries possible – Cross site

Semantic MediaWiki

Automatically-generated lists Visual display of information Improved data structure Searching information Inter-language consistency External reuse  “Collaborative Database”

Semantic MediaWiki Semantic search Ask function {{#ask: }} {{ #ask: }}

Semantic MediaWiki Semantic search Criteria: Which pages to select [[Category:Actor]] [[born in::Boston]] [[height::180cm]] [[Category:Actor]] [[height::>6 ft]] [[height::<7 ft]] [[born in::Boston]] OR [[born in::New York]] [[Category:Cities]] [[located in.member of::European Union]]

Semantic MediaWiki Semantic search Criteria: Which information should be displayed? ?population ?area#km²

Semantic MediaWiki Semantic search Example: {{ #ask: [[Category:City]] [[located in::Germany]] | ?population | ?area#km² = Size in km² }}

Semantic MediaWiki Semantic Properties MediaWiki link: [[Germany]]  [[capital of::Germany]] MediaWiki text: 3,396,990  [[population::3,396,990]]

Semantic MediaWiki Result Formats {{ #ask: [[Category:City]] [[located in::Germany]] | ?population | format=ul }}

Semantic MediaWiki Result Formats {{ #ask: [[Category:City]] [[located in::Germany]] | ?population | ?area#km² = Size in km² | ?coordinates | format=map }}

Maps MediaWiki extension API for mapping functionality Parser functions – display_point – display_points Geocoding – geocode – display_address – display_addresses Multi mapping/geocoding service support

Maps Mapping services

Parser functions: display_point {{ #display_point: coordinates = , | service = googlemaps | type = hybrid }} Maps

Parser functions: Parameters

Maps Parser functions: Parameters {{ #display_point: zoom=10 |width=1200 |height=1000 | , | service = google | type = physical | types = terrain, hybrid, earth | controls = large, overview-map, scale, type }}

Maps Parser functions: Parameters {{ #display_point: zoom=10 |width=1200 |height=1000 | , | service = google | type = physical | types = terrain, hybrid, earth | controls = large, overview-map, scale, type }} Not in the list?

Maps Parser functions: Spesific parameters Google Maps Yahoo! Maps OpenLayers

What about multiple locations? (I can has muhltiple locathiunz?)

Maps Parser functions: display_points {{#display_points: , ; , }}

Maps Parser functions: Location info {{ #display_points: coordinates = , ~The answer!; , ~Moscow~The capital of Russia~green.png }}

Maps Geocoding {{#geocode:Moscow}}  , {{ #display_point: {{#geocode:Moscow}} }} = {{#display_address: Moscow}} {{ #display_points: {{#geocode:Moscow}}, {{#geocode:New York}} }} = {{#display_addresses: Moscow, New York}}

Maps Geocoding: Services {{#display_address: Moscow}}  Uses the default {{#display_address: Moscow |geoservice=yahoo }}  Uses the Yahoo! Service {{#geocode:Moscow, Russia|geonames}}  Uses the GeoNames Service

Maps Geocoding: Parameters

Semantic Maps MediaWiki extension Hooks into – Maps – Semantic MediaWiki – Semantic Forms Functionality – Aggregation of coordinates (Result formats) – Insertion of coordinates (Form inputs)

Semantic Maps Mapping service Identical to the ones of Maps – Google Maps – Yahoo! Maps – OpenLayers

Semantic Maps Result formats {{ #ask: [[Category:City]] [[located in::Germany]] | ?population | ?area#km² = Size in km² | ?coordinates | format=map }}

Semantic Maps Result formats {{ #ask: [[Category:City]] [[located in::Germany]] | ?population | ?area#km² = Size in km² | ?coordinates | format=openlayers }}

Semantic Maps Result formats: Parameters {{ #ask: [[Category:City]] [[located in::Germany]] | ?population | ?area#km² = Size in km² | ?coordinates | format=openlayers | width = 500 | height = 300 | zoom = 10 }}

Semantic Maps Result formats: Parameters

Semantic Maps Result formats: Example {{ #ask: [[Category:City]] [[located in::Germany]] | ?population| ?area#km² = Size in km² | ?coordinates | format=openlayers | width=800 | height=500 | zoom=4 | center={{#geocode:Moscow, Russia}} | layers=google-physical,yahoo,google,bing,openlayers,nasa }}

Semantic Maps Form Inputs Semantic Forms hook Allows – Coordinate insertion – Easy editing of coordinate data With a visual interface (= No wiki code!)

Semantic Maps Form Inputs: Syntaxis {{{ field |The coordinates |input type=yahoomaps }}}

Semantic Maps Form Inputs: Parameters {{{ field |The coordinates |input type=yahoomaps |width=800 |height=500 |zoom=8 |autozoom=off }}}

Semantic Maps Form Inputs : Parameters

Semantic Maps Form Inputs: Example {{{ field |The coordinates |input type=yahoomap |width=800 |height=500 |autozoom=off }}}

Thanks to Google, for the funding of both extensions Yaron Koren, for mentoring me during the dev Wikimedia Foundation, for all the support

References MediaWiki: mediawiki.org Semantic MediaWiki: semantic-mediawiki.org Maps: mediawiki.org/wiki/Extension:Maps Semantic Maps: mediawiki.org/wiki/Semantic_Maps Jeroen De Dauw bn2vs.com