linked open data @ stad gent
TRANSCRIPT
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Stad Gent is Open
FedICT
December 15thBrussels
image: beeldbank.stad.gent
Thimo ThoeyeStad Gent
[email protected]@tthoeye
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http://stad.gent is Open Data
FedICT
December 15thBrussels
image: beeldbank.stad.gent
Thimo ThoeyeStad Gent
[email protected]@tthoeye
![Page 3: Linked Open Data @ Stad Gent](https://reader035.vdocument.in/reader035/viewer/2022062820/589db3b01a28ab21728b6e63/html5/thumbnails/3.jpg)
http://stad.gent is Linked Open Data
FedICT
December 15thBrussels
image: beeldbank.stad.gent
Thimo ThoeyeStad Gent
[email protected]@tthoeye
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What’s in a website?
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What’s in a website?
Services
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What’s in a website?
Services
News
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What’s in a website?
Services
News
Events
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What’s in a website?
Services
News
Events
...
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Where does this information come from?
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Where does it go?
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Open Data
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Linked Open Data
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“it gives me a headache just trying to think down to your level”
image: io9.com
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Ontologies and Vocabularies
schema.org
OSLO
Core Public Service
Core Location
Core Business
Core Person
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Architecture
Header: Content-type: text/html
F5
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Architecture
Header: Accept: text/html
F5
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Architecture
Header: Accept: application/rdf+xml
F5
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Architecture
Header: Accept: application/rdf+xml
F5
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Show me the data!
SPARQL Endpoint:
News items:
Products:
Manuals:
http://stad.gent/sparql
http://stad.gent/data/news/
http://stad.gent/data/products/
https://stad.gent/over-gent-en-het-stadsbestuur/over-gent/kaarten-cijfers-en-data/linked-open-data
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Examples
Products for ecological companies:
PREFIX schema: <http://schema.org/>PREFIX dct:<http://purl.org/dc/terms/>SELECT ?product ?titelWHERE { ?product a <http://purl.org/vocab/cpsv#PublicService>. ?product schema:audience <http://stad.gent/data/ns/gpdc/doelgroepen/onderneming>. ?product dct:subject <http://stad.gent/data/ns/themas/natuur-milieu>. ?product dct:title ?titel}
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Examples
Recent news items related to museums
PREFIX schema:<http://schema.org/>SELECT ?article ?titel ?publishedWHERE { VALUES ?org { <https://stad.gent/openingsuren-adressen/smak-stedelijk-museum-voor-actuele-kunst> <https://stad.gent/openingsuren-adressen/huis-van-alijn> }. ?article a schema:NewsArticle. ?article schema:datePublished ?published. ?article <http://schema.org/sourceOrganization> ?org. ?article schema:headline ?titel} ORDER BY DESC(?published) LIMIT 5