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Linked Data: A 30-Minute Crash Course! Tom Heath Lead Researcher - PowerPoint PPT Presentation

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shared innovation Linked Data: A 30-Minute Crash Course! Tom Heath Lead Researcher Talis Systems Ltd July 2011, SSSW2011, Cercedilla, Spain shared innovation Outline No hard sell about Linked Data, just the basic concepts A

  1. shared innovation Linked Data: A 30-Minute Crash Course! Tom Heath Lead Researcher Talis Systems Ltd July 2011, SSSW2011, Cercedilla, Spain

  2. shared innovation Outline • No “hard sell” about Linked Data, just the basic concepts • A basic introduction to the topic – Graphs – RDF Triples – URIs for documents and things – Links between (things in different) data sets • A brief mention of some useful data sets • Outline of the hands-on session

  3. shared innovation What is a Graph? Tom

  4. shared innovation What is a Graph? Talis Tom

  5. shared innovation What is a Graph? Talis Tom employedBy

  6. shared innovation What is a Graph? Talis Tom employedBy livesIn Bristol

  7. shared innovation What is a Graph? Talis Tom employedBy livesIn favouriteDrink Bristol Ardbeg

  8. shared innovation What is a Graph? Talis Tom employedBy livesIn favouriteDrink Bristol Whisky isA Ardbeg

  9. shared innovation What is a Graph? Talis Tom employedBy livesIn favouriteDrink Bristol Whisky isA Ardbeg origin Islay

  10. shared innovation What is a Graph? Talis Tom employedBy livesIn favouriteDrink Bristol Whisky isA Ardbeg origin isIn Islay Scotland

  11. shared innovation What is a Graph? Talis Tom employedBy industry Software livesIn favouriteDrink Bristol Whisky isA Ardbeg origin isIn Islay Scotland

  12. shared innovation What is a Graph? Talis Tom employedBy industry Software basedIn livesIn favouriteDrink Bristol Birmingham Whisky isA Ardbeg origin isIn Islay Scotland

  13. shared innovation What is a Graph? Talis Tom employedBy industry Software basedIn livesIn employedBy favouriteDrink Bristol Birmingham Whisky isA Ardbeg Ian Davis origin isIn Islay Scotland

  14. shared innovation What is a Graph? Talis Tom employedBy industry Software basedIn livesIn employedBy favouriteDrink Bristol Birmingham Whisky isA Ardbeg bornIn Ian Davis origin England isIn Islay Scotland

  15. shared innovation What is a Graph? Talis Tom employedBy industry Software basedIn livesIn employedBy favouriteDrink Bristol Birmingham Whisky isA Ardbeg bornIn Ian Davis origin borders England isIn Islay Scotland

  16. shared innovation What is a Graph? Talis Tom employedBy industry Software basedIn City livesIn isA employedBy favouriteDrink Bristol Birmingham Whisky isA Ardbeg bornIn Ian Davis origin borders England isIn Islay Scotland

  17. shared innovation What is a Graph? Talis Tom employedBy industry Software basedIn City livesIn isA isA employedBy favouriteDrink Bristol Birmingham Whisky isA Ardbeg bornIn Ian Davis origin borders England isIn Islay Scotland

  18. shared innovation What is a Graph? Talis Tom employedBy industry Software basedIn City livesIn isA isA employedBy favouriteDrink Bristol isIn Birmingham Whisky isIn isA Ardbeg bornIn Ian Davis origin borders England isIn Islay Scotland

  19. shared innovation The RDF Data Model: Triples Object Subject Predicate

  20. shared innovation The RDF Data Model: Triples Talis Tom employedBy

  21. shared innovation 1 Graph, 15 RDF Triples Talis Tom employedBy industry Software basedIn City livesIn isA isA employedBy favouriteDrink Bristol isIn Birmingham Whisky isIn isA Ardbeg bornIn Ian Davis origin borders England isIn Islay Scotland

  22. shared innovation Talis Tom employedBy industry Software basedIn City livesIn isA isA employedBy favouriteDrink Bristol isIn Birmingham Whisky isIn isA Ardbeg bornIn Ian Davis origin borders England isIn Islay Scotland

  23. shared innovation Talis Tom employedBy industry Software basedIn City livesIn isA isA employedBy favouriteDrink Bristol isIn Birmingham Whisky isIn isA Ardbeg bornIn Ian Davis origin borders England isIn Islay Scotland

  24. shared innovation Talis Tom employedBy industry Software basedIn City livesIn isA isA employedBy favouriteDrink Bristol isIn Birmingham Whisky isIn isA Ardbeg bornIn Ian Davis origin borders England isIn Islay Scotland

  25. shared innovation Talis Tom employedBy industry Software basedIn City livesIn isA isA employedBy favouriteDrink Bristol isIn Birmingham Whisky isIn isA Ardbeg bornIn Ian Davis origin borders England isIn Islay Scotland

  26. shared innovation Talis Tom employedBy industry Software basedIn City livesIn isA isA employedBy favouriteDrink Bristol isIn Birmingham Whisky isIn isA Ardbeg bornIn Ian Davis origin borders England isIn Islay Scotland

  27. shared innovation f r d m . o m / t o . c h a t e h m o / t : / p h t t Talis Tom employedBy industry Software basedIn City livesIn isA isA employedBy favouriteDrink Bristol isIn Birmingham Whisky isIn isA Ardbeg bornIn Ian Davis origin borders England isIn Islay Scotland

  28. shared innovation Talis Tom employedBy industry Software basedIn City livesIn isA isA employedBy favouriteDrink Bristol isIn Birmingham Whisky isIn isA Ardbeg bornIn Ian Davis origin borders England isIn Islay Scotland http://wiskii.com/ardbeg.rdf

  29. shared innovation http://www.talis.com/talis.rdf Talis Tom employedBy industry Software basedIn City livesIn isA isA employedBy favouriteDrink Bristol isIn Birmingham Whisky isIn isA Ardbeg bornIn Ian Davis origin borders England isIn Islay Scotland

  30. shared innovation Talis Tom employedBy industry Software basedIn City livesIn isA isA employedBy favouriteDrink Bristol isIn Birmingham Whisky isIn isA Ardbeg bornIn Ian Davis origin borders England http://iandavis.com/ian.rdf isIn Islay Scotland

  31. shared innovation Talis Tom employedBy industry Software basedIn City livesIn isA isA employedBy favouriteDrink Bristol isIn Birmingham Whisky isIn isA Ardbeg bornIn Ian Davis origin borders England isIn http://geonames.org/uk.rdf Islay Scotland

  32. shared innovation URIs for All Things (Not Just for Documents) Talis http://tomheath.com/id/me employedBy industry Software basedIn City http://worklife.eg/livesIn isA isA employedBy http://drin.kr/favouriteDrink http://plac.es/Bristol isIn Birmingham http://drin.kr/Whisky isIn http://rels.com/isA http://wiskii.com/Ardbeg bornIn Ian Davis borders http://wiskii.com/origin England http://rels.com/isIn http://wiskii.com/Islay http://plac.es/Scotland

  33. shared innovation Talking About the Same Thing Talis Tom employedBy industry Software basedIn City livesIn isA isA employedBy favouriteDrink Bristol isIn Birmingham Whisky isIn isA isA Ardbeg Ardbeg bornIn Ian Davis origin origin borders England isIn Islay Islay Scotland

  34. shared innovation Talking About the Same Thing Talis Tom employedBy industry Software basedIn City livesIn isA isA employedBy favouriteDrink Bristol isIn Birmingham Whisky isIn isA Ardbeg http://my.eg/Islay origin bornIn Ian Davis borders England owl:sameAs isIn Scotland http://your.eg/Islay

  35. shared innovation Useful Data Sets • Dbpedia: RDF descriptions of everything that has a Wikipedia page <http://dbpedia.org/> • Geonames: data set about geographic locations, with RDF descriptions <http://geonames.org/> • owl:sameAs links exist between many places that feature in both DBpedia and Geonames

  36. shared innovation Anatomy of a Simple Linked Data Application 1. Look up a URI (HTTP GET) 2. Receive some RDF data in response (maybe via a redirect) 3. Do something useful with the data 4. Inspect the data for links to related things 5. Look up the URIs of related things 6. Go to Step 2.

  37. shared innovation Linked Data Hands-On Session • Build a simple city guide based on existing Linked Data sources • Start with a seed URI for a city of your choice • Populate a SimpleGraph object with data retrieved by looking up this URI • Look for outgoing links in the data • Look these up and add the resulting data to your SimpleGraph / Thing object • Show some/all of the data you have retrieved as a Web page city guide

  38. shared innovation Instructions • http://tomheath.com/stuff/sssw2011/

  39. shared innovation Questions? • Contact Info – tom.heath@talis.com – http://tomheath.com/id/me – http://www.talis.com/ – @tommyh (twitter) • Slides – http://tomheath.com/slides/2011-07-cercedilla- linked-data-a-30-minute-crash-course.pdf

  40. shared innovation

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