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Linked Open Data

Daniel Hladky Ontos AG and W3C Switzerland

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March 1989

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You might have seen this

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5 Star Pyramid of Open Data

(Dr M. Hausenblas, DERI)

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W3C Data Activity Group

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¤  AT – Renewable Energy and Energy Efficiency Partnership (REEEP)

¤  DE – German National Library (DNB)

¤  EU – Europeana

¤  EU – European Environment Agency (EEA)

¤  UK – BBC

¤  UK – National Archives

¤  US – Various Governmental Organisations

¤  US – New York Times

¤  CH – Swiss Open Government Data

¤  CH – Open Data Zürich

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Case Studies (excerpt)

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Data.gov and Mashups

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E.g. Chicago - https://data.cityofchicago.org/

http://www.slideshare.net/kevinhauswirth/chicago-social-tech-open-data

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Open Data Switzerland

Applications

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ENEL Open Datasets

http://data.enel.com/

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SNCF

http://ressources.data.sncf.com/explore/

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NYTIMES, BBC, Guardien, AP etc.

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Digital News and Semantics

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How to do it

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OntoQuad SPARQL RDF Store

Structured data sources like CSV, XLS, RDBMS

Unstructured text document sources like HTML

Extraction and conversion tools

Data storages

LOD Cloud

SPARQL endpoint Datasets

RDBMS

BI, Reporting, Analisys

Linked Data Stack

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Inter-linking/ Fusing

Classifi-cation/

Enrichment

Quality Analysis

Evolution / Repair

Search/ Browsing/

Exploration

Extraction

Storage/ Querying

Manual revision/ authoring

Linked Data Life-Cycle

http://iswc2012.semanticweb.org/sites/default/files/76500001.pdf

Managing the Life-Cycle of Linked Data with the LOD2 Stack

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Ontos LD Information Workbench

Inter-linking/ Fusing

Classifi-cation/

Enrichment

Quality Analysis

Evolution / Repair

Search/ Browsing/

Exploration

Extraction

Storage/ Querying

Manual revision/ authoring

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Ontos LD Information Workbench

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OntosLDIW - Authoring

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OntosLDIW

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OntosLDIW – Triple Store

“OntoQUAD – Native High-Speed RDF DBMS for Semantic Web” J. Unbehauen, D. Hladky, G. Drobjazko et all KESW2013 paper

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OntosLDIW – Linking & Fusion

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OntosLDIW – Linking & Fusion

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OntosLDIW - Exploration

PREFIX dbpedia-owl: <http://dbpedia.org/ontology/> PREFIX dbpprop: <http://dbpedia.org/property/> PREFIX dbres: <http://dbpedia.org/resource/> SELECT ?y WHERE { ?y dbpedia-owl:binomialAuthority dbres:Johan_Christian_Fabricius. } limit 10

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OntosLDIW - Exploration

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Linked Enterprise Data

Sugar CRM

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Inside View based on LD

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The 5 Star Benefits of LOD

E-Mail daniel.hladky@ontos.com

More efficiency, better provision of the public or commercial task

Greater flexibility leads to lower cost for future projects

New Services, new discoveries, new connections

Improved navigation within and between datasets

Other people can build apps based on your data