A complete example of how to create Linked Data
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A complete example of how to link data
Transcript of A complete example of how to create Linked Data
A complete example of how to link data
Real estate agency
Client
Here is your dream home!
$$$
Robberies
Structure of population
Crimes
Immigrants
Young
Mature
Retired
Green spaces
Nationalities
Energy consumption
London borough profiles
Crime rates in boroughs
Total energy consumption
Energy consumptionLondon borough profiles
Crime rates in boroughs
sameAs
sameAs
sameAs
How to connect data?
WWW
Energy consumption
Census data
Crime data Unifying
and cleaning
Converting to RDF
Linking to other data
sources
Publishing on the Web
Storing
Google Refne
What for?
Clean up raw data• Identify duplicates• Discover patterns
Make data consistent• Spot inconsistencies
Link data to registry• e.g. Freebase
Formats supported
TSV, CSV or values separated by a custom separator you specify
Excel
Google spreadsheets
XML, RDF as XML
RDF N3 files
JSON
WWW
Energy consumption
Borough profiles
Crime data Unifying
and cleaning
Converting to RDF
Linking to other data
sources
Publishing on the Web
Storing
Google Refine
Building a skeleton
Reconciliation
WWW
Energy consumption
Census data
Crime data Unifying
and cleaning
Converting to RDF
Linking to other data
sources
Publishing on the Web
Storing
Google Refine
Building a skeleton
Reconciliation
London boroughs
Dataset
has label
has structure
Defined bycomponents
Specified by
properties
Defined by columns in the table
have label
Header of the column
e.g. measure
represent type
London boroughs
Dataset
has label
has structure
Defined bycomponents
Specified by
properties
Defined by columns in the table
have label
Header of the column
e.g. measure
represent type
London boroughs
Cube vocabulary
London boroughs
Dataset
has label
has structure
Defined bycomponents
Specified by
properties
Defined by columns in the table
have label
Header of the column
e.g. measure
represent type
London boroughs
qb:dataSet
rdfs:label
qb:structure
qb:DataStructureDefinition
qb:component qb:ComponentSpecification
e.g. qb:measure
qb:ComponentProperty
rdfs:label
“Area name”
e.g. measure
e.g. qb: MeasureProperty
WWW
Energy consumption
Census data
Crime data Unifying
and cleaning
Converting to RDF
Linking to other data
sources
Publishing on the Web
Storing
Google Refine
Building a skeleton
Reconciliation
Defining structure
Filling with values
WWW
Energy consumption
Census data
Crime data Unifying
and cleaning
Converting to RDF
Linking to other data
sources
Publishing on the Web
Storing
Google RefineSilk
Pubby
Fuseki
London boroughs
qb:dataSet
rdfs:label
qb:structure qb:DataStructureDefinition
qb:component qb:ComponentSpecific
ation
e.g. qb:measure
qb:ComponentProperty
rdfs:label
“Area name”
e.g. measure
e.g. qb: MeasureProperty
Area name URI
qb:ComponentSpecif
icationqb:ComponentSpecifi
cation
…
…
qb:ComponentSpecifi
cation
…
qb:ComponentSpecifi
cation
…
Energy consumption
qb:dataSet
rdfs:label
qb:structure qb:DataStructureDefinition
qb:component qb:ComponentSpecific
ation
e.g. qb:measure
qb:ComponentProperty
rdfs:label
“LAU1 Area”
e.g. measure
e.g. qb: MeasureProperty
Area name URI
qb:ComponentSpecif
icationqb:ComponentSpecifi
cation
…
…
qb:ComponentSpecifi
cation
…
qb:ComponentSpecifi
cation
…
Crime rates in boroughs
qb:dataSet
rdfs:label
qb:structure qb:DataStructureDefinition
qb:component qb:ComponentSpecific
ation
e.g. qb:measure
qb:ComponentProperty
rdfs:label
“Borough”
e.g. measure
e.g. qb: MeasureProperty
Area name URI
qb:ComponentSpecif
icationqb:ComponentSpecifi
cation
…
…
qb:ComponentSpecifi
cation
…
qb:ComponentSpecifi
cation
…
sameAs
sameAs
sameAs
London boroughs
qb:dataSet
rdfs:label
qb:structure qb:DataStructureDefinition
qb:component qb:ComponentSpecific
ation
e.g. qb:measure
qb:ComponentProperty
rdfs:label
“Area name”
e.g. measure
e.g. qb: MeasureProperty
Area name URI
qb:ComponentSpecif
icationqb:ComponentSpecifi
cation
…
…
qb:ComponentSpecifi
cation
…
qb:ComponentSpecifi
cation
…
Crime rates in boroughs
qb:dataSet
rdfs:label
qb:structure qb:DataStructureDefinition
qb:component qb:ComponentSpecific
ation
e.g. qb:measure
qb:ComponentProperty
rdfs:label
“Borough”
e.g. measure
e.g. qb: MeasureProperty
Area name URI
qb:ComponentSpecif
icationqb:ComponentSpecifi
cation
…
…
qb:ComponentSpecifi
cation
…
qb:ComponentSpecifi
cation
…
sameAs
qb:Observation
qb:Observation
http://example.org/def/statistical-dimension/area-name
http://example.org/def/statistical-dimension/area-name
qb:dataSet
qb:dataSet
Thank you for your attention
