A gentle introduction to riese
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A gentle introduction to riese

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Introduces riese, the 'RDFizing and Interlinking the EuroStat Data Set Effort' in a couple of minutes.

Introduces riese, the 'RDFizing and Interlinking the EuroStat Data Set Effort' in a couple of minutes.

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    A gentle introduction to riese A gentle introduction to riese Presentation Transcript

    • Institute of Information Systems & Information Management riese – R DFizing & I nterlinking the E uro S tat Dataset E ffort Wolfgang Halb (JOANNEUM RESEARCH), Yves Raimond (Queen Mary University of London) and Michael Hausenblas (JOANNEUM RESEARCH) 2008-01-30
    • Agenda
      • LinkingOpenData
      • Eurostat ( http://ec.europa.eu/eurostat )
      • Architecture
      • Schema & Data
      • Demo
      • Inside
    • LinkingOpenData: Principles
      • Items should be identified using URI references [ URIrefs ] (and: don’t use bNodes );
      • URIrefs should be dereferenceable: using HTTP URIs allows looking up the items identified through URIrefs, cf. [ http-range-14 TAG finding ];
      • Looking up an URIref it leads to more data [ follow-your-nose principle ];
      • Links to other URIrefs should be included in order to enable the discovery of more data [ How to Publish Linked Data on the Web ]
    • LinkingOpenData: Current State
    • LinkingOpenData: Current State
      • in less than a year an emerging community (cf. [ LOD ESWiki ]
        • created approx. 4 billion triples and approx. 3 million interlinks in 25 separate data sets
        • held diverse F2F meetings, presentations, etc.
        • upcoming: LDOW08 workshop at WWW08
    • Eurostat
      • Eurostat ( http://ec.europa.eu/eurostat )
      • publishes statistics in these themes:
        • General and regional statistics
        • Economy and finance
        • Population and social conditions
        • Industry, trade and services
        • Agriculture and fisheries
        • External trade
        • Transport
        • Environment and energy
        • Science and technology
      • about the European Union in detail and additional statistics for major non-European countries
    • Eurostat
      • data dump provided as download (TSV-files)
      • updated twice a day
      • additionally needed:
        • dictionary files to translate the data codes used
        • table of contents for structure
      • Size of Eurostat data
        • 5 GB data dump in approx. 4,000 files
        • 350 million data values
        • 80,000 different data codes
    • riese: architecture
    • riese: schema & data
    • riese: schema & data
      • 3 billion triples generated
      • Example data:
      • <riese:Dataset rdf:about=&quot;http://riese.joanneum.at/data/eb040&quot;
      • dc:title=&quot;Inflation rate&quot;
      • riese:data_end=&quot;2006&quot;
      • riese:data_start=&quot;1980&quot;
      • riese:last_update=&quot;08/01/2008“/>
    • riese: schema & data
      • <riese:Item dc:title=“Inflation rate Austria 2006&quot;
      • rdf:value=“1.7&quot;
      • <riese:dimension rdf:resource= &quot;http://riese.joanneum.at/dimension/geo/at&quot;/>
      • <riese:dimension rdf:resource= &quot;http://riese.joanneum.at/dimension/time/2006&quot;/>
      • <riese:dataset rdf:resource= &quot;http://riese.joanneum.at/dat/eb040&quot;/>
      • </riese:Item>
    • riese: schema & data
      • XHTML + RDFa example:
      • <?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?>
      • <!DOCTYPE html PUBLIC &quot;-//W3C//DTD XHTML+RDFa 1.0//EN&quot; &quot;http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtd&quot;>
      • <html xmlns=&quot;http://www.w3.org/1999/xhtml&quot; xml:lang=&quot;en&quot;
      • xmlns:riese=&quot;http://riese.joanneum.at/schema/core#&quot;
      • ...
      • >
      • <head>
      • ...
      • </head>
      • <body about=&quot;http://riese.joanneum.at/data/economy/&quot; instanceof=&quot;riese:Dataset&quot; >
      • <span class=&quot;toc-entry&quot;><a href=&quot;http://riese.joanneum.at/data/bop/&quot; rel=&quot;skos:narrower&quot; class=&quot;dim&quot;>Balance of payments - International transactions</a></span>
      • Last update: <span property=&quot;dc:date&quot; datatype=&quot;xsd:date&quot; >2008-01-09</span>
      • </body>
      • </html>
    • riese: demo
    • riese: inside
      • Server:
        • Apache 2.2
        • SWI- Prolog
        • PHP 5
        • RDF/XML documents in the file system
      • Client
        • XHTML+RDFa
        • Javascript/Yahoo! Interface Library [ YUI ]