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


Raw data catalog, data.gov


Government data catalogs worldwide

http://datos.fundacionctic.org/sandbox/catalog/map



We want governments to provide Linked Data,

not just Raw Data


From Raw Data to Linked Data

Formats Vocabularies Stable URIs Hosting/resolvability Interlinking Reconciliation/deduplication



not just Raw Data



not just Raw DataTim

e

Money

Skills


DIY


dcatData Catalog Vocabulary


Government data catalogs worldwide




Survey of data catalogs


dcat Vocabulary


dcat at W3C

dcat Task Force Part of W3C eGovernment Interest Group http://www.w3.org/egov/wiki/Data_Catalog_Vocabulary

http://www.w3.org/egov/wiki/Data_Catalog_Vocabulary


Four catalogs in SPARQL

http://lab.linkeddata.deri.ie/govcat/US, Australia, London, SF

http://lab.linkeddata.deri.ie/govcat/


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/

http://code.google.com/p/freebase-gridworks/


Gridworks


Extending Gridworks


Extension I: Browse dcat in Gridworks


Extension II: RDF export


Next steps

1. Reconciliation across datasets2. Share the mappings3. Linked Data hosting


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

http://bit.ly/gridworks-rdf

Self-Service Linked Government Data with dcat and Gridworks

Technology

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