An introduction to open data and linked data, with a focus on available public data sources in Norway. These are the slides accompanying the presentation I held on these topics at the Appworks conference in Oslo, Norway the 19th of October 2010.

1. Killer apps with public data - a cloudofopportunity? 1 Appworks, 19. oktober 2010 @SveinMagnus Killer apps with public data - a cloud of opportunity? Photo by ijnek29 @ Flickr, CC BY-ND

2. Killer apps with public data - a cloud of opportunity? 2 CONTENT MATTERS

3. Killer apps with public data - a cloud of opportunity? 3 Public data = Open data? Photo by melanieburger @ Flickr, CC BY-ND

4. Open data is a philosophy and practice requiring that certain data be freely available to everyone, without restrictions from copyright, patents or other mechanisms of control. http://en.wikipedia.org/wiki/Open_data Killer apps with public data - a cloud of opportunity? 4 What is Open Data?

5. OpenKnowledgeDefinition http://www.opendefinition.org/ Open data / content / information must: Be Available and Accessible at Reproduction Cost “As a Whole” Permit Free Redistribution Permit Reuse Under Same Terms Be Absent of Technological Restrictions Be Attributed as Required Keep Source Integrity Not Discriminate Access From Persons or Groups Not Discriminate Against Fields of Endeavor Be Distributed with only the Original License Must Not Be Licensed Specific to a Package Must Not by License Restrict the Distribution of Other Works Killer apps with public data - a cloud of opportunity? 5 What is Open Data? Graphic by ronin691 @ Flickr, CC BY-SA

8. The rate of discovery often accelerates with better access to data.Killer apps with public data - a cloud of opportunity? 7 Why is open data good? Photo by Victor.Correa Flickr, CC BY-NC-SA

11. Killer apps with public data - a cloud of opportunity? 10 Ifyou love something… Set it free! Photo by keltanen @ Flickr, CC BY-NC

12. Killer apps with public data - a cloud of opportunity? 11 Sources of open data Photo by muffin9101985 @ Flickr, CC BY-NC-SA

13. http://data.gov – Data from the USA http://data.gov.uk – Data from Great Britain http://digitaliser.dk – Data from Denmark http://data.norge.no – Data from Norway – opens fall 2010! Killer apps with public data - a cloud of opportunity? 12 Public data catalogues

14. Killer apps with public data - a cloud of opportunity? 13 Graphic by W3C SWEO Linking Open Data, CC BY-SA

15. Wikipedia defines Linked Data as “a term used to describe a recommended best practice for exposing, sharing, and connecting pieces of data, information, and knowledge on the Semantic Web using URIs and RDF.” Linked Data is about using the Web to connect related data that wasn't previously linked, or using the Web to lower the barriers to linking data currently linked using other methods. The over 200 semantic web datasets currently contains over 25 billion triples of linked data and 400 million RDF links. http://linkeddata.org/ 14 Killer apps with public data - a cloud of opportunity? Graphic by semanticwebcompany@ Flickr, CC BY-NC-SA

16. DBpedia is a community effort to extract structured information from Wikipedia and to make this information available on the Web. DBpedia allows you to ask sophisticated queries against Wikipedia, and to link other data sets on the Web to Wikipedia data. The DBpedia knowledge base currently describes more than 2.6 million things, including at least 213,000 persons, 328,000 places, 57,000 music albums, 36,000 films, 20,000 companies. The knowledge base consists of 274 million pieces of information (RDF triples). http://dbpedia.org/ DBpedia and all other linked data is searchable with SPARQL http://en.wikipedia.org/wiki/SPARQL 15 Killer apps with public data - a cloud of opportunity?

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18. Killer apps with public data - a cloud of opportunity? 17 Open Calais – automaticsemantic tagging

19. Killer apps with public data - a cloud of opportunity? 18 Open Calais – automaticsemantic tagging

20. Killer apps with public data - a cloud of opportunity? 19 Public open data in Norway Photo by hyfen @ Flickr, CC BY-NC-SA

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26. Killer apps with public data - a cloud of opportunity? 25 Gravearbeider i Oslo

27. Killer apps with public data - a cloud of opportunity? 26 Barnehager

28. Killer apps with public data - a cloud of opportunity? 27 Opportunities to grab Photo by erikcharlton @ Flickr, CC BY

29. Killer apps with public data - a cloud of opportunity? 28 The road to mobile data starts here! Questions? Photo by danesparza @ Flickr, CC BY-ND

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