A complete example of how to create Linked Data

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  • 1. A complete example of how to link data
  • 2. Real estate agency Client
  • 3.  $$$
  • 4. Green Mature spacesRobberies Young CrimesStructure ofpopulation Retired Immigrants Nationalities Energy consumption
  • 5. London borough profiles
  • 6. Crime rates in boroughs
  • 7. Total energy consumption
  • 8. How to connect data? Google Refne Energyconsumption Crime data Unifying Linking to Publishing Converting and other data on the cleaning to RDF sources Web WWW Census data Storing
  • 9. What for?Clean up raw data Link data to registry • Identify duplicates • e.g. Freebase • Discover patterns Make data consistent • Spot inconsistencies
  • 10. Formats supportedTSV, CSV or values separated by a custom separator you specify Excel Google spreadsheets XML, RDF as XML RDF N3 filesJSON
  • 11. Google Refine Energyconsumption Crime data Unifying Linking to Publishing Converting and other data on the cleaning to RDF sources Web WWW Borough profiles Storing Reconciliation Building a skeleton
  • 12. Google Refine Energyconsumption Crime data Unifying Linking to Publishing Converting and other data on the cleaning to RDF sources Web WWW Census data Storing Reconciliation Building a skeleton
  • 13. London boroughs has label Dataset has structure components Specified by Defined by properties Defined by columns in the table have label represent type Header of the column e.g. measure
  • 14. London boroughs has label Dataset has structure components Specified by Defined by properties Defined by columns in the table have label represent type Header of the column e.g. measure
  • 15. London boroughs
  • 16. London boroughs has label Dataset has structure components Specified by Defined by properties Defined by columns in the tableCube vocabulary represent type have label Header of the column e.g. measure
  • 17. London boroughs rdfs:label qb:dataSet qb:structure qb:component qb:ComponentSp qb:DataStructu ecification reDefinition e.g. qb:measure qb:ComponentProperty rdfs:label e.g. qb: MeasureProperty “Area name” e.g. measure
  • 18. Google Refine Energyconsumption Crime data Unifying Linking to Publishing Converting and other data on the cleaning to RDF sources Web WWW Census data Storing Reconciliation Defining structure Building a skeleton Filling with values
  • 19. Pubby Silk Google Refine Energyconsumption Crime data Unifying Linking to Publishing Converting and other data on the cleaning to RDF sources Web WWW Census data Storing Fuseki
  • 20. London boroughs rdfs:label qb:structure qb:DataStruc qb:component qb:Compon qb:dataSe tureDefinitio entSpecific t n ation qb:Compo … e.g. qb:measure nentSpecif ication qb:Compo … qb:ComponentPro nentSpecifi cation qb:Compo … perty nentSpecifi cation qb:Compo … rdfs:label nentSpecifi Energy consumption cation e.g. qb: MeasureProperty rdfs:label qb:DataStruc qb:component qb:Compon “Area name” qb:dataSe qb:structure tureDefinitio entSpecific t n ation qb:Compo … e.g. qb:measure e.g. measure nentSpecif ication qb:Compo … qb:ComponentPro nentSpecifi cation qb:Compo … perty nentSpecifi cation Area name URI qb:Compo … rdfs:label nentSpecifi cationCrime rates in boroughs e.g. qb: MeasureProperty rdfs:label “LAU1 Area” qb:structure qb:DataStruc qb:component qb:Compon qb:dataSe tureDefinitio entSpecific t n ation e.g. measure qb:Compo … e.g. qb:measure nentSpecif ication qb:Compo … qb:ComponentPro nentSpecifi cation qb:Compo … perty nentSpecifi Area name URI cation qb:Compo … rdfs:label nentSpecifi cation e.g. qb: MeasureProperty “Borough” e.g. measure Area name URI
  • 21. London boroughs rdfs:label qb:structure qb:DataStruc qb:component qb:Compon qb:dataSe tureDefinitio entSpecific t n ation qb:Compo … e.g. qb:measure nentSpecif ication qb:Compo … qb:ComponentPro nentSpecifi cation qb:Compo … perty nentSpecifi cation qb:Compo … rdfs:label nentSpecifi cation e.g. qb: MeasureProperty qb:Observation qb:dataSetCrime rates in boroughs “Area name” rdfs:label qb:structure qb:DataStruc qb:component qb:Compon qb:dataSe tureDefinitio entSpecific e.g. measure t n ation qb:Compo … e.g. qb:measure nentSpecif ication qb:Compo … qb:ComponentPro Area name URI nentSpecifi cation qb:Compo … perty http://example.org/def/statistical-dimension/area-name nentSpecifi cation qb:Compo … rdfs:label nentSpecifi cation e.g. qb: MeasureProperty qb:Observation qb:dataSet “Borough” e.g. measure Area name URI http://example.org/def/statistical-dimension/area-name
  • 22. Thank you for your attention 