Linked Open Data, Some Business Cases

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Slides for lecture at Aalto University 18 Nov 2010.

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Linked Open Data, Some Business Cases

  1. 1. Some LOD Business Cases 17.11.2010 Tapio Nurminen www.floapps.com
  2. 2. Background MA in History Web Editor @ University of Helsinki Freelancer Academic Entrepreneurship @ HSE Entrepreneur
  3. 3. Flo Apps Ltd consultancy and implementation of modern web technologies won Apps For Democracy Finland 2009 4 people + subcontractors
  4. 4. Linked Open Data Linked Data - a technical concept Open Data - a mindset, license-related concept
  5. 5. The 2 layers of LOD business data needed to create apps apps needed to make things interesting to get funding for opening the data, apps are needed in most cases
  6. 6. Part 1: Publishing Linked Data
  7. 7. Case Study: Dance Info Finland www.danceinfo.fi/tanka/ approx 200,000 triples D2R server relational db into RDF mapping file the central point ontology issues which one to use? what new ones should be created?
  8. 8. # Table Person map:artisti a d2rq:ClassMap; d2rq:dataStorage map:database; d2rq:uriPattern "artist/@@Person.ID@@"; # d2rq:class vocab:artisti; d2rq:class foaf:Person; d2rq:classDefinitionLabel "artist"; d2rq:orderAsc "Person.Lastname" . map:artisti_etunimi a d2rq:PropertyBridge; d2rq:belongsToClassMap map:artisti; # d2rq:property vocab:artisti_etunimi; d2rq:property foaf:givenName; d2rq:propertyDefinitionLabel "artistin etunimi"; d2rq:column "Person.Firstname"; .
  9. 9. Interface issues 3 options machine/geek readable hybrid human interface
  10. 10. In the pipeline... Finnish Literature Society over 6,000 biographies
  11. 11. Part 2: Visualisations
  12. 12. Simile Widgets free, open-source web widgets mostly for data visualizations Timeline Exhibit www.simile-widgets.org
  13. 13. JavaScript InfoVis Toolkit JSON loading, animation, 2D point and graph classes and some tree visualization methods thejit.org
  14. 14. Raphaël a small JavaScript library, uses the SVG and VML as a base every graphical object is also a DOM object, so you can attach JavaScript event handlers or modify them later raphaeljs.com
  15. 15. Food for Thought datavisualization.ch/tools/13-javascript-libraries-for-visualizations HTML5 canvas element offers new possibilities for more ideas: http://flowingdata.com/ http://datavisualization.ch/ http://datavis.tumblr.com/ http://infosthetics.com/
  16. 16. Design Tips interactivity !important deciding what to show, what not and how to show editorial decisions combine expertise from different fields developers usually prefer JSON
  17. 17. Thank you! tapio.nurminen@floapps.com twitter.com/TapioNurminen

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