LOD技術解説

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LOD技術解説

  1. 1. LOD
  2. 2. • LOD • LOD.AC •
  3. 3. LOD • Collections Trust • Europeana • Science Museum • Semuse
  4. 4. http://www.collectionstrust.org.uk/digital/linkeddata
  5. 5. 10 Principles for Linked Data in the Culture Sector • Data is rich, and includes Data created by Users • Linked Data serves both the sector and its audiences • Linked Data connect the culture sector to a collaborative effort across the Public Sector • Linked Data can help us achieve more efficient practice • Linked Data can help us deliver on our commitment to Public Access http://www.collectionstrust.org.uk/pdfs/linked_data_principles.pdf
  6. 6. 10 Principles for Linked Data in the Culture Sector • Linked Data is the next phase in our adaptation to the Web • Linked Data should become an embedded function of the software we use • We must communicate the benefits of Linked Data throughout the sector • We must commit to commissioning Open Data, not Open Source • We must support a commercial market of providers and suppliers to support Linked Data http://www.collectionstrust.org.uk/pdfs/linked_data_principles.pdf
  7. 7. http://www.europeana.eu/portal/
  8. 8. http://museum-api.pbworks.com/Science-Museum-linked-data
  9. 9. http://www.semuse.org/index.php?title=Semuse
  10. 10. LOD.AC • : 5 • http://lod.ac • : LOD • : • Europeana?
  11. 11. • • • •
  12. 12. • DC(NDL) + CIDOC-CRM • : DC • DC : DCNDL • : CIDOC-CRM •
  13. 13. • • • • • • • • Web : 14
  14. 14. Web
  15. 15. Demo
  16. 16. • • • • LOD • Europeana, NDLSH, DBPedia, Freebase, ...
  17. 17. • • Content-negotiation • SPARQL
  18. 18. • : Ruby • RDF.rb, Sinatra, Haml • DB: 4store • RDF Store
  19. 19. RDF.rb gem install linkeddata
  20. 20. 4store • http://4store.org • • • Ruby: gem install rdf-4store
  21. 21. Content-negotiation
  22. 22. Request Response
  23. 23. http://example.org/ '/' index.html http://example.org
  24. 24. http://example.org/ '/' HTML '/' HTML index.html http://example.org
  25. 25. http://example.org/ '/' LOD '/' LOD http://example.org
  26. 26. LOD • RDF • XML • Turtle / N3 • JSON • TRIX • RDFa
  27. 27. SPARQL
  28. 28. Query SQL SPARQL DB RDB RDF Store Model Relational Model RDF(Graph)
  29. 29. SPARQL • RDF • WebAPI • SPARQL Endpoint
  30. 30. SELECT * WHERE { ?s ?p ?o . } LIMIT 10
  31. 31. PREFIX dbp-ont: <http://dbpedia.org/ontology/> PREFIX dbpedia: <http://dbpedia.org/resource/> SELECT * WHERE { ?Person dbp-ont:birthPlace dbpedia:Tokyo ; } LIMIT 100
  32. 32. PREFIX dbpedia: <http://dbpedia.org/resource/> SELECT * WHERE { dbpedia:Vincent_van_Gogh ?p ?o . }
  33. 33. • SELECT: • CONSTRUCT: RDF • ASK: • DESCRIBE:
  34. 34. LODAC: http://lod.ac

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