Self-Service Linked Government Data with dcat and Gridworks
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Transcript of Self-Service Linked Government Data with dcat and Gridworks
Copyright 2009 Digital Enterprise Research Institute. All rights reserved.
Digital Enterprise Research Institute www.deri.ie
Self-Service Linked Government Data with dcat and Gridworks
Fadi Maali, Richard Cyganiak, Vassilios PeristerasTriplification Challenge 2010 at I-Semantics, Graz
Digital Enterprise Research Institute www.deri.ie
Raw data catalog, data.gov
Digital Enterprise Research Institute www.deri.ie
Government data catalogs worldwide
http://datos.fundacionctic.org/sandbox/catalog/map
Digital Enterprise Research Institute www.deri.ie
We want governments to provide Linked Data,
not just Raw Data
Digital Enterprise Research Institute www.deri.ie
From Raw Data to Linked Data
Formats Vocabularies Stable URIs Hosting/resolvability Interlinking Reconciliation/deduplication
Digital Enterprise Research Institute www.deri.ie
We want governments to provide Linked Data,
not just Raw Data
Digital Enterprise Research Institute www.deri.ie
We want governments to provide Linked Data,
not just Raw DataTim
e
Money
Skills
Digital Enterprise Research Institute www.deri.ie
DIY
Digital Enterprise Research Institute www.deri.ie
dcatData Catalog Vocabulary
Digital Enterprise Research Institute www.deri.ie
Government data catalogs worldwide
http://datos.fundacionctic.org/sandbox/catalog/map
Digital Enterprise Research Institute www.deri.ie
Survey of data catalogs
Digital Enterprise Research Institute www.deri.ie
Survey of data catalogs
Digital Enterprise Research Institute www.deri.ie
dcat Vocabulary
Digital Enterprise Research Institute www.deri.ie
dcat at W3C
dcat Task Force Part of W3C eGovernment Interest Group http://www.w3.org/egov/wiki/Data_Catalog_Vocabulary
Digital Enterprise Research Institute www.deri.ie
Four catalogs in SPARQL
http://lab.linkeddata.deri.ie/govcat/US, Australia, London, SF
Digital Enterprise Research Institute www.deri.ie
Gridworks
Made by David Huynh at Metaweb (now Google) Explore, clean up and improve tabular data Desktop app http://code.google.com/p/freebase-gridworks/
Digital Enterprise Research Institute www.deri.ie
Gridworks
Digital Enterprise Research Institute www.deri.ie
Extending Gridworks
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Extension I: Browse dcat in Gridworks
Digital Enterprise Research Institute www.deri.ie
Extension I: Browse dcat in Gridworks
Digital Enterprise Research Institute www.deri.ie
Extension II: RDF export
Digital Enterprise Research Institute www.deri.ie
Extension II: RDF export
Digital Enterprise Research Institute www.deri.ie
Next steps
1. Reconciliation across datasets2. Share the mappings3. Linked Data hosting
Digital Enterprise Research Institute www.deri.ie
Summary
dcat RDF vocabulary for government data catalogs W3C eGovernment Interest Group
Gridworks Great workbench for tabular data Extensible!
RDF export for Gridworks http://bit.ly/gridworks-rdf