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ISWC 2009 Consuming LOD

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Part of the Consuming Linked Data Tutorial at ISWC 2009

Part of the Consuming Linked Data Tutorial at ISWC 2009

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  • 1. A socially managed semantic database
  • 2. Freebase has Many Types of Things
  • 3. 8,856,069 Topics
  • 4. Freebase is user writable
  • 5. Freebase: A Semantic Publishing Platform http://www.freebase.com/view/en/washington_united_states http://rdf.freebase.com/ns/en.washington_united_states
  • 6. schema = vocabulary
  • 7. A Repository of Vocabulary 1500 types with 500+ instances!! A range of of vocabularies....
  • 8. Freebase Schema in RDFS http://rdfvocab.freebaseapps.com/fb2rdfs?domain=/film <rdf:RDF> <rdf:Description rdf:about="http://rdf.freebase.com/ns/film.film"> <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Class"/> <label>Film</label> </rdf:Description> <rdf:Description rdf:about="http://rdf.freebase.com/ns/film.film.initial_release_date"> <rdf:type rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/> <label>Initial release date</label> <domain rdf:resource="http://rdf.freebase.com/ns/film.film"/> <range rdf:resource="http://rdf.freebase.com/ns/type.datetime"/> </rdf:Description> <rdf:Description rdf:about="http://rdf.freebase.com/ns/type.datetime"> <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Class"/> <label>Date/Time</label> </rdf:Description> <rdf:Description rdf:about="http://rdf.freebase.com/ns/film.film.directed_by"> <rdf:type rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/> <label>Directed by</label> <domain rdf:resource="http://rdf.freebase.com/ns/film.film"/> <range rdf:resource="http://rdf.freebase.com/ns/film.director"/> </rdf:Description> <rdf:Description rdf:about="http://rdf.freebase.com/ns/film.director"> <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Class"/> <label>Film director</label>
  • 9. Repository of Identifiers /en/ibm /guid/9202a8c04000641f800000000001e168 NYSE: IBM /business/cik/0000051143 /wikipedia/en_id/18622259 /wikipedia/en/IBM /wikipedia/en/International_Business_Machines
  • 10. 8.6MM of these! Po liti ca rs lC arte on dqu trib ol uti Hea b K on ym CI Dat S r s e Fou e nde Ti ck d Founders CEO IBM SIC O pe ra IC tin Soft NA s e g diari In war co m i e De Subs e velo ped
  • 11. Freebase as Switchboard http://www.flickr.com/photos/jliba/
  • 12. ID d ia Sto ck i pe Tic ik k er W IBM CIK N YT im es To pic s Follow any identifier in - take the others out
  • 13. Working with Sets of Linked Data Follow your nose Search SQUIN Have a Plan "know what you need" Have a Strategy (extra credit)
  • 14. A Problem Country Name ? Record Reviews for bands from the country
  • 15. A Plan Country Name WP IDs DBPedia MBz IDS BBC Record Reviews for bands from the country
  • 16. Plan Coordination
  • 17. Blackboard Coordination <output> <input>
  • 18. Blackboard Coordination SELECT ?x WHERE {?s ?p ?o ...}
  • 19. Working the Plan DBpedia Country Name SPARQL Query Band's Freebase ID Freebase Freebase ID Band's MusicBrainz ID MusicBrainz ID BBC Record Reviews Record Reviews for bands from the country
  • 20. Reliability
  • 21. Common Architecture Model Model Controllers View Manager RePublishing Engine Service Ecosystem
  • 22. Service Ecosystem
  • 23. rel=license
  • 24. Strong Identifiers Strong Semantics Open Data
  • 25. Freebase in Service Ecosystem
  • 26. sameas.freebase.com GovTrack 0000051143 /en/ibm CIK
  • 27. [{ "name" : null, "type" : "/business/company" }] MQL
  • 28. [{ "name" : null, "type" : "/business/company", "industry":"Computer software" }] MQL
  • 29. [{ "name" : null, "type" : "/business/company", "industry":{"id":"/en/computer_software"} }] MQL
  • 30. [{ "name" : null, "type" : "/business/company", "industry":{"id":"/business/naics2007/5112"} }] MQL
  • 31. [{ "name" : null, "type" : "/business/company", "industry":{"id":"/business/naics2007/5112"}, "founders": [ ] }] MQL
  • 32. [{ "name" : null, "type" : "/business/company", "industry":{"id":"/business/naics2007/5112"}, "founders": [{ }] }] MQL
  • 33. [{ "name" : null, "type" : "/business/company", "industry":{"id":"/business/naics2007/5112"}, "founders": [{ }], "/base/sameas/lod/data": [{ }] }] eMQL - MQL Extensions
  • 34. [{ "id" : "/en/ibm", "type" : "/business/company", "industry":{"id":"/business/naics2007/5112"}, "founders": [{ }], "/base/sameas/lod/data": [{ }] }] eMQL - MQL Extensions
  • 35. [{ "id" : "/en/ibm", "type" : "/business/company", "industry":{"id":"/business/naics2007/5112"}, "founders": [{ }], MQL "/base/sameas/lod/data": [{ }] sameas.freebase.com }] GovTrack /en/ibm CIK "id" : "/en/ibm" eMQL LOD Extension
  • 36. Linked Data as "Leaf Data" Photo by: http://www.flickr.com/photos/blmurch
  • 37. Data Data Linked Data allows applications to access Data Entity Data using uniform patterns Data Uniform Access to Entity Data
  • 38. The "last mile of data"

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