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Linked Open Data, Some Business Cases



Slides for lecture at Aalto University 18 Nov 2010.

Slides for lecture at Aalto University 18 Nov 2010.



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    Linked Open Data,  Some Business Cases Linked Open Data, Some Business Cases Presentation Transcript

    • Some LOD Business Cases 17.11.2010 Tapio Nurminen www.floapps.com
    • Background MA in History Web Editor @ University of Helsinki Freelancer Academic Entrepreneurship @ HSE Entrepreneur
    • Flo Apps Ltd consultancy and implementation of modern web technologies won Apps For Democracy Finland 2009 4 people + subcontractors
    • Linked Open Data Linked Data - a technical concept Open Data - a mindset, license-related concept
    • 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
    • Part 1: Publishing Linked Data
    • 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?
    • # 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"; .
    • Interface issues 3 options machine/geek readable hybrid human interface
    • In the pipeline... Finnish Literature Society over 6,000 biographies
    • Part 2: Visualisations
    • Simile Widgets free, open-source web widgets mostly for data visualizations Timeline Exhibit www.simile-widgets.org
    • JavaScript InfoVis Toolkit JSON loading, animation, 2D point and graph classes and some tree visualization methods thejit.org
    • 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
    • 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/
    • 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
    • Thank you! tapio.nurminen@floapps.com twitter.com/TapioNurminen