1. Linked Data

    Publication and Consumption

    ConFoo, Montréal, 2014-02-26

    #LinkedData #ConFoo

    Sarven's avatar Sarven Capadisli http://csarven.ca/#i @csarven

  2. Technology Context

    Figure of Semantic Web Technologies
  3. Core idea

  4. Linked Data Design Principles

    1. URIs as names for things
    2. HTTP URIs so that people can look up those names
    3. When someone looks up a URI, provide useful information, using RDF*, SPARQL
    4. Include links to other URIs for discovery
  5. Identifying things

  6. Identifying things

    Now! That should clear up a few things around here. The Far Side
  7. Grain of rice graph

    Graph of a grain of rice
  8. Technology Flow

    Figure of the flow of technologies
  9. Wikipedia to DBpedia

    Transforming Wikipedia data to DBpedia
  10. Linked Open Data Cloud

    Linked Open Data cloud diagram as of 2011-09
  11. 270a Cloud (statistical datasets)

  12. RDF logo RDF

    Resource Description Framework

  13. RDF Triples

    Graph of subject predicate object

        <Subject> <Predicate> <Object> .
    • Graph model (directed labeled graph)
    • Similar to Entity-Attribute-Value (EAV) data model e.g., Sarven.height = 1.65m
    • Serializations: RDFa, Turtle, N-Triples, RDF/XML
    • A triple statement: URI (spo), _:bnode (so), "literal" (o)
  14. Vocabularies

  15. Vocabularies

  16. N-Triples

  17. Turtle

  18. Turtle

  19. RDFa example

  20. RDF/XML example

  21. Overview of the RDF formats

  22. SPARQL

    SPARQL Protocol and RDF Query Language

  23. SPARQL query example

  24. SPARQL query result example

  25. SPARQL query example

  26. SPARQL query

  27. SPARQL query: Federated

  28. Interlinking

  29. Provenance

    PROV-O Key Concepts

  30. Galway City page on DataGovIE

    Screenshot of Galway City page on DataGovIE
  31. School Explorer

    School Explorer Pilot screenshot
  32. Central government debt indicator (LodLive)

    Screenshot of World Bank indicator GC.DOD.TOTL.GD.ZS in LodLive.it

    See also: http://en.lodlive.it/?http://worldbank.270a.info/classification/indicator/GC.DOD.TOTL.GD.ZS

  33. Central government debt indicator (HTML)

    Screenshot of World Bank indicator GC.DOD.TOTL.GD.ZS  in worldbank.270a.info/classification/indicator/GC.DOD.TOTL.GD.ZS

    See also: http://worldbank.270a.info/classification/indicator/GC.DOD.TOTL.GD.ZS

  34. Central government debt indicator chart view for some countries

    Screenshot of World Bank indicator GC.DOD.TOTL.GD.ZS for countries CA,US,DE,CH,IE in worldbank.270a.info/view

    See also: http://worldbank.270a.info/view?indicator=GC.DOD.TOTL.GD.ZS&country=CA,US,DE,CH,IE

  35. Analysis user-interface (Plot) 1/3


  36. Analysis user-interface (Summary) 2/3


  37. Oh yeah?

    Provenance user-interface

  38. Analysis user-interface (Provenance) 3/3


  39. Linked Data: Publication and Consumption

    Sarven's avatar Sarven Capadisli



  40. Credits

  41. Credits