Diese Präsentation wurde erfolgreich gemeldet.
Die SlideShare-Präsentation wird heruntergeladen. ×

Twinkle: A SPARQL Query Tool

Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige

Hier ansehen

1 von 20 Anzeige

Weitere Verwandte Inhalte

Diashows für Sie (20)

Ähnlich wie Twinkle: A SPARQL Query Tool (20)

Anzeige

Weitere von Leigh Dodds (20)

Anzeige

Twinkle: A SPARQL Query Tool

  1. 1. Twinkle: A SPARQL Query Tool Leigh Dodds, Oxford SWIG, March 2008 Photo Credit: Glen Bowman
  2. 2. What Is It? A GUI for writing and running SPARQL queries
  3. 4. Data Sources Local Files Remote Files Jena Databases Any combination of these
  4. 5. SPARQL Endpoints Complete SPARQL Client Useful pre-configured sources, e.g. DBPedia
  5. 6. But Wait, There’s More RDFS and OWL Inferencing Jena Rules Engine And any combination
  6. 8. Demonstration (Where It All Goes Wrong)
  7. 9. The Secret Sauce ARQ SPARQL query engine The Jena Assembler API
  8. 10. Jena Assembler API Declaratively describe how to build a Jena Model URIs, Databases Add default content Apply schemas, reasoning
  9. 11. <ul><li>:periodicTable a ja:MemoryModel </li></ul><ul><li>; ja:content [ </li></ul><ul><li>ja:externalContent </li></ul><ul><li><http://www.daml.org/2003/01/periodictable/PeriodicTable.owl> </li></ul><ul><li>] </li></ul><ul><li>; rdfs:label &quot;Periodic Table&quot; </li></ul><ul><li>. </li></ul>Config Example
  10. 12. <ul><li>:nlm ja:modelName &quot;nlm-data&quot; </li></ul><ul><li>; ja:connection :nlm-connection </li></ul><ul><li>; rdfs:label &quot;NLM Data&quot; </li></ul><ul><li>. </li></ul><ul><li>:nlm-connection </li></ul><ul><li>ja:dbURL <jdbc:mysql://127.0.0.1:3306/facet> </li></ul><ul><li>; ja:dbClass &quot;com.mysql.jdbc.Driver&quot; </li></ul><ul><li>; ja:dbType &quot;MySQL&quot; </li></ul><ul><li>; ja:dbUser &quot;facet&quot; </li></ul><ul><li>; ja:dbPassword “*********&quot; </li></ul>Config Example (2)
  11. 13. <ul><li><http://dbpedia.org/sparql> a sources:Endpoint </li></ul><ul><li>; sources:defaultGraph &quot;http://dbpedia.org&quot; </li></ul><ul><li>; rdfs:label &quot;DBpedia.org&quot;. </li></ul><ul><li><http://www.rdfabout.com/sparql> a sources:Endpoint </li></ul><ul><li>; rdfs:label &quot;GovTrack.us&quot;. </li></ul>Config Example (3)
  12. 14. Where It All Goes etconfig.n3 Describe (and label) models Prefix Mappings
  13. 15. Prefix Mappings Quickly add PREFIX statement to query Pre configured vocabularies Add your own…
  14. 16. Prefix Mappings :foaf a ja:PrefixMapping ; rdfs:label &quot;FOAF&quot; ; ja:prefix &quot;foaf&quot; ; ja:namespace &quot;http://xmlns.com/foaf/0.1/&quot; .
  15. 17. Demonstration (2)
  16. 18. … And Yet More ARQ Function & Property Library ARQ Extensions (e.g. COUNT, GROUP BY)
  17. 19. Future Plans Documentation! SPARQL Endpoint Access Control Model Caching Syntax Highlighting More Eye Candy Move to Google Code (Your Feature Here)
  18. 20. Questions? Twinkle Homepage Annotated Screenshots http://www.slideshare.net/ldodds/twinkle-a-sparql-query-tool/

×