Linked Open Data @ Stad Gent
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The document discusses the city of Ghent's open data and linked open data initiatives. It provides an overview of the types of information available on the city's website, how that information is structured and connected using ontologies and vocabularies, and examples of SPARQL queries that can be used to retrieve and explore open data about products for ecological companies and recent news items related to museums.
Linked Open Data @ Stad Gent
- 1. Stad Gent is Open FedICT December 15th Brussels image: beeldbank.stad.gent Thimo Thoeye Stad Gent thimo.thoeye@stad.gent @tthoeye
- 2. http://stad.gent is Open Data FedICT December 15th Brussels image: beeldbank.stad.gent Thimo Thoeye Stad Gent thimo.thoeye@stad.gent @tthoeye
- 3. http://stad.gent is Linked Open Data FedICT December 15th Brussels image: beeldbank.stad.gent Thimo Thoeye Stad Gent thimo.thoeye@stad.gent @tthoeye
- 4. What’s in a website?
- 5. What’s in a website? Services
- 6. What’s in a website? Services News
- 7. What’s in a website? Services News Events
- 8. What’s in a website? Services News Events ...
- 9. Where does this information come from?
- 10. Where does it go?
- 11. Open Data
- 12. Linked Open Data
- 13. “it gives me a headache just trying to think down to your level” image: io9.com
- 14. Ontologies and Vocabularies schema.org OSLO Core Public Service Core Location Core Business Core Person
- 19. 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
- 20. Examples Products for ecological companies: PREFIX schema: <http://schema.org/> PREFIX dct:<http://purl.org/dc/terms/> SELECT ?product ?titel WHERE { ?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 }
- 21. Examples Recent news items related to museums PREFIX schema:<http://schema.org/> SELECT ?article ?titel ?published WHERE { 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