Semantic mapping with MediaWiki

Jeroen De Dauw

Presentation outline

• Introduction to MediaWiki• Introduction to Semantic MediaWiki– Questions

• Maps• Semantic Maps– Questions

MediaWiki

MediaWiki

Key features

MediaWiki

MediaWiki

MediaWiki

Key features• Everyone can edit

MediaWiki

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

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 = 55.7557860, 37.6176330| service = googlemaps| type = hybrid}}

Maps

Maps

Parser functions: Parameters

Maps

Parser functions: Parameters

{{#display_point: zoom=10 |width=1200 |height=1000| 55.7557860, 37.6176330| 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| 55.7557860, 37.6176330| service = google| type = physical| types = terrain, hybrid, earth| controls = large, overview-map, scale, type}}

Not in the list?

Maps

Parser functions: Spesific parametersGoogle Maps

Yahoo! Maps

OpenLayers

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

Maps

Parser functions: display_points

{{#display_points: 55.7557860, 37.6176330; 42.424242, 42.424242}}

Maps

Parser functions: Location info

{{#display_points:coordinates =42.424242, 42.424242~The answer!;55.7557860, 37.6176330~Moscow~The capital of Russia~green.png}}

Maps

Geocoding

{{#geocode:Moscow}} 55.7522222, 37.6155556

{{ #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 dataWith 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• jeroendedauw@gmail.com• bn2vs.com