1. Digital Enterprise Research Institute www.deri.ie
Linked Open Government Data
Deirdre Lee
eGovernment Domain (DEG), DERI
21st March 2012
 Copyright 2011 Digital Enterprise Research Institute. All rights reserved.
Enabling Networked Knowledge

2. Digital Enterprise Research Institute www.deri.ie
Linked Data
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3. The Web.. Distributed Information
Digital Enterprise Research Institute www.deri.ie
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4. Why Linked Data?
Digital Enterprise Research Institute www.deri.ie
Cities:Dublin
Geo:hasLargestCity
84421km2
Wikipedia.org Geo:IslandOfIreland
Geo:hasCapital
Geo:area
Geo:locatedOn
EU:RepublicOfIreland
EU:RepublicOfIreland
Gov:hasDepartment
Gov:hasTaoiseach
Gov.ie
Person:EndaKenny
IE:DepartmentOfFinance
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5. Why Linked Open Data?
Digital Enterprise Research Institute www.deri.ie
Org:BlanchardstownHospital hosp:childrensWard
hosp:hasWard
data.fingal.ie Org:hasOrgType
Org:hospital
Org:hospital
Org:hasOrgType
hosp:hasWard
dublinked.ie Org:StJamesHospital hosp:cardiacWard
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6. Two Key Ingredients
Digital Enterprise Research Institute www.deri.ie
1. RDF – Resource Description Framework
Graph based Data – nodes and arcs
 Identifies objects (URIs)
 Interlink information (Relationships)
2. Vocabularies (Ontologies)
 provide shared understanding of a domain
 organise knowledge in a machine-comprehensible way
 give an exploitable meaning to the data
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7. 5 Stars Of Linked Open Data
Digital Enterprise Research Institute www.deri.ie
http://lab.linkeddata.deri.ie/2010/star-scheme-by-example/
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8. Proof Points
Digital Enterprise Research Institute www.deri.ie
 Massive Industry Adoption
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9. Digital Enterprise Research Institute www.deri.ie
Open Government Data
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10. Open Government Data (OGD)
Digital Enterprise Research Institute www.deri.ie
 Open Data: data that can be freely used, reused
and redistributed by anyone.*
 Government Data: data and information produced
or commissioned by government or government
controlled entities.*
 Not sensitive or private information but core public
data on transport, infrastructure, education, health,
crime, environment, etc.
*Open Knowledge Foundation (OKF) http://opengovernmentdata.org/what/
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11. Open Data Timeline
Digital Enterprise Research Institute www.deri.ie
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12. 216 Registered Data Catalogues
(datacatalogs.org)
Digital Enterprise Research Institute www.deri.ie
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13. Open Data Initiatives
Digital Enterprise Research Institute www.deri.ie
 Catalogues
 data.gov, data.gov.uk, dublinked.ie
 Best practices
 TBL’S 5-star, OKF Open Data Handbook
 Standards
 DCAT, ADMS, INSPIRE
 Working groups
 W3C eGov IG, W3C GLD WG, OASIS TGF TC, Irish NCIWGOD
 Projects
 LOD2, LATC, Citadel on the Move
 Legislation
 EU PSI Directive, Irish Public Sector Reform Plan
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14. Digital Enterprise Research Institute www.deri.ie
Linked Open Government Data
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15. LOD Cloud
Digital Enterprise Research Institute www.deri.ie
http://lod-cloud.net
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16. Linked Data by Domain
Digital Enterprise Research Institute www.deri.ie
Distribution of triples by
domain
Distribution of links by
domain
http://lod-cloud.net/state
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17. data.gov (US)
Digital Enterprise Research Institute www.deri.ie
http://www.data.gov/semantic
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18. data.gov.uk
Digital Enterprise Research Institute www.deri.ie
http://data.gov.uk/linked-data
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19. Catalunya, Zaragoza (ES)
Digital Enterprise Research Institute www.deri.ie
http://www20.gencat.cat/portal
/site/dadesobertes?newLang=
en_GB
http://www.zaragoza.es/ciudad
/risp/buscar_Risp
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20. Brazil, Chile, Netherlands...
Digital Enterprise Research Institute www.deri.ie
http://ligadonospoliticos.com.br
http://datos.bcn.cl/portal/visualizacion/
http://semanticweb.cs.vu.nl/poseidon/ns/
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21. Europe
Digital Enterprise Research Institute www.deri.ie
https://joinup.ec.europa.eu
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22. Europe
Digital Enterprise Research Institute www.deri.ie
 European Public Sector Information (PSI) Platform, to raise awareness
and exchange good practices. More planned activities under CIP are
foreseen.
 LOD2- FP7 project to increase public access to high- value, machine-
readable data sets generated by European, national/regional/local public
administrations.
 The Linked Open Data Around the Clock (LATC) FP7 Support Action
supports interested partners to publish and consume Linked Data.
 Digital Agenda Stakeholders’ Day: “Priority #3: Beyond raw data: public
sector information, done well”. A discussion on what is next in Open
Data
 Provide Semantic Interoperability Center Europe (SEMIC) as a possible
trusted registry infrastructure for vocabulary, metadata schemas and EU
URI management (semantic assets)
 Investigate ways of improving access to EC information
Peristeras, V. ‘From Open to Linked Government Data’, http://linkeddata.future-
internet.eu/images/b/be/Peristeras_From_Open_to_Linked_Government_Data.pdf
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23. W3C Government Linked
Data WG
Digital Enterprise Research Institute www.deri.ie
 Task Force Community Directory,
 Outreach: Technology_Policy_Leaders
 Outreach: Civil_Society
 Task Force Best Practices for Publishing Linked Data
 Charter 2.2.1 Procurement
 Charter 2.2.2 Vocabulary Selection
 Charter 2.2.3 URI Construction
 Charter 2.2.4 Versioning http://www.w3.org/2011/gld/wiki/Main_Page
 Charter 2.2.5 Stability
 Charter 2.2.6 Legacy Data
 Charter 2.2.7 Government Linked Data Cookbook
 Task Force Standard Vocabularies
 Charter 2.3.1 Data Catalog Vocabulary – DCAT ED, UC&R ED
 Charter 2.3.2 Data Cube Vocabulary – QB ED, UC&R ED
 Charter 2.3.3 Terms for describing people – People ED
 Charter 2.3.4 Organizational Structures – ORG ED
 Charter 2.3.5 Geography and Spatial Information
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24. The 7 Best Practices for
Producing LOGD
Digital Enterprise Research Institute www.deri.ie
1. Model the Data
2. Name things with URIs
3. Re-use vocabularies whenever possible
4. Publish human and machine readable descriptions
5. Convert data to RDF
6. Specify an appropriate license
7. Host the Linked Data Set Publicly and Announce it!
http://www.w3.org/2011/gld/wiki/Linked_Data_Cookbook
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25. How the BBC makes
Websites
Digital Enterprise Research Institute www.deri.ie
 Develop a domain model
 Populate your data model
 Design URIs
 Build pages
 Apply layout and decor CSS
 Test and iterate
Mike Atherton, ‘Beyond the Polar Bear’
http://www.slideshare.net/reduxd/beyond-the-polar-bear
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26. BBC Ontologies
Digital Enterprise Research Institute www.deri.ie
 Programmes ontology
 purl.org/ontology/po
 Wildlife ontology
 purl.org/ontology/wo
 Sport ontology
 bbc.co.uk/ontologies/sport
 Links to LOD Cloud, e.g. DBpedia, WWF, etc.
http://www.slideshare.net/reduxd/beyond-
the-polar-bear
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27. Linked Data Lifecycle
Digital Enterprise Research Institute www.deri.ie
http://linked-data-life-cycles.info/
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