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Linked Open Data in 10 Minutes Sandro Hawke, W3C sandro@w3 @sandhawke FOSE March 23, 2010

Linked Open Data in 10 Minutes Sandro Hawke, W3C sandro@w3.org @sandhawke FOSE March 23, 2010. Linked Data?. What do you get when you cross the Web with all your Spreadsheets? How do you safely expose your databases to the public? What if people could merge them all ?.

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Linked Open Data in 10 Minutes Sandro Hawke, W3C sandro@w3 @sandhawke FOSE March 23, 2010

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  1. Linked Open Datain 10 Minutes Sandro Hawke, W3Csandro@w3.org @sandhawkeFOSEMarch 23, 2010

  2. Linked Data? What do you get when you cross the Web with all your Spreadsheets? How do you safely expose your databases to the public? What if people could merge them all?

  3. The Elements of Linked Data • Use RDF Triples • Expose as Web Resources • Identify each entity with a URL (URI) Data at http://dbpedia.org/resource/Massachusetts

  4. Step 1: Think in Triples

  5. Step 2: Find Vocabularies • Properties (nickname, capital, governor) • Classes, Individual Entities • Reuse existing vocabularies • When they cover the same domain • When you trust the source to maintain it • Create your own, if you must • Beware perfectionism (“state” or “commonwealth”?)

  6. Step 3: Publish on the Web • Pick a long-term URL • Include Provenance/Metadata • Publish pages (smaller data sets) • RDF/XML for machine-only • RDFa for integration with HTML • Provide a query service (larger data sets) • SPARQL • Linked Data API • (optional) Offer browse/query interface

  7. More Details • Lots of books, conferences, web sites, software... • Research Community • Natural Language • Automated Reasoning • Semantics,Ontologies • Just the Data, Ma'am

  8. Linked Open Data Cloud

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