Case Study: A Real-World Implementation Of Linked Data

Making The Most of Existing and Mashable Data Sources

Dimitri van Hees, APIcon UK 2014

About me

• Technical Architect• Data Specialist• Freshheads BV• API supporter

About me

“The only bad thing about API is that it’s the inverse of IPA”

About me

• Brewmaster• MQTT API driven brewery

“De Brouwtoren”

Buzzwords

• #BigData• #OpenData• #LinkedOpenData• #SemanticWeb• #Web30• #IoT

Buzzwords

• #BigData: lots of data• #OpenData: free data• #LinkedOpenData: free Linked Data• #SemanticWeb: Linked Data• #Web30: Linked Data• #IoT: Connected devices, sensor data

Real world

Quality

PriceQuantity

Data quality

• Machine readable?• Accessible via webservices?• Up-to-date?• Verified?

Data quantity

• Can we store it?• Can we process it?• Is it representative?

Data price

• What does it cost?• Do we need an API key?• Are we allowed to use it?• And also for commercial purposes?

Privacy

Government data

• Not often machine readable• Not much external links

Freebase

• REST interface• MQL (Metaweb Query Language)• Free API key• Free RDF download• Search widget• http://www.freebase.com/m/09889g• https://

www.googleapis.com/freebase/v1/topic/m/09889g

DBPedia

• Wikipedia as Linked Data• Synchronizes Wikipedia periodically• Free RDF download• SPARQL endpoint (dbpedia-owl:wikiPageID)• DBPedia lookup API• http://

lookup.dbpedia.org/api/search.asmx/KeywordSearch?QueryString=Michael%20Jackson• http://dbpedia.org/sparql

Semantic API’s

• Dandelion.eu• 1000 free requests/day• Provides links to DBPedia as well• https

://dandelion.eu/products/datatxt/nex/demo/?exec=true#

Semantic API’s

‘s-Hertogenbosch

Den Bosch

Den Bosch, Netherlands

http://nl.dbpedia.org/resource/'s-Hertogenbosch

Or just add it yourself…

…but never ever re-invent the wheel!

Thank you!

• Twitter: http://twitter.com/dvh• E-mail: dimitri@freshheads.com• GitHub: http://github.com/dvh• LinkedIn: https://linkedin.com/in/dimitrivanhees

Thank you!

• Twitter: http://twitter.com/dvh• E-mail: dimitri@freshheads.com• GitHub: http://github.com/dvh• LinkedIn: https://linkedin.com/in/dimitrivanhees

• Brewery: http://facebook.com/brouwtoren

Case Study: A Real-World Implementation Of Linked Data

Technology

Transcript of Case Study: A Real-World Implementation Of Linked Data

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