Linked Open Data<br />An extremely high level view!<br />by<br />@asaletourneau<br />July 2011<br />
So what is it?<br />Simply put (by someone else):<br />“The expression ‘Linked Data’ is used to describe a method of expos...
LODLAM<br />http://lod-lam.net/summit/about/<br />It’s an unconference dude!!<br />http://www.flickr.com/photos/captsolo/5...
What does this man and this band have in common?<br />They both appear as linked data on the internet!<br />
What do these two things have in common?<br />Melbourne<br />Bearbrass<br />They are different names for the same geograph...
First things first…<br />An introduction to the semantic web<br />http://youtube.com/watch?v=OGg8A2zfWKg<br />
Some insightful words on linked open data by Dr Tim Sherratt<br />http://www.slideshare.net/wragge/a-hopefully-fairly-pain...
How do we describe data e.g. people, places, events, thoughts, feelings, images, twitter accounts to a machine?<br />We ne...
Ontologies?<br />http://schemapedia.com<br />Formats?<br />RDF describes resources with classes, properties, and values<br...
Linked Open Data Five Star Rating Scheme<br />http://www.w3.org/DesignIssues/LinkedData.html<br />
Linking Open Data cloud diagram <br />http://richard.cyganiak.de/2007/10/lod<br />
Examples please of real world applications!!!!!!<br />http://wiki.dbpedia.org/About<br />http://dbpedia.neofonie.de/browse...
But wait there’s more!<br />http://www.europeana.eu/portal/aboutus.html<br />http://www.europeana.eu<br />http://www.europ...
And what about Australia?<br />http://trove.nla.gov.au<br />http://www.powerhousemuseum.com/collection/database/<br />http...
Opportunities for PROV?<br />http://www.prov.vic.gov.au/online-exhibitions/deeming/story01-murder.htm<br />http://viewer.o...
Natural Language, Intelligents Agents, Skynet?<br />http://www.wolframalpha.com/about.html<br />
Other Resources<br />http://tomheath.com/papers/bizer-heath-berners-lee-ijswis-linked-data.pdf<br />http://www.cdlib.org/s...
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Introduction to linked open data

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Here's some things I have learned about the Semantic Web.

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Introduction to linked open data

  1. 1. Linked Open Data<br />An extremely high level view!<br />by<br />@asaletourneau<br />July 2011<br />
  2. 2. So what is it?<br />Simply put (by someone else):<br />“The expression ‘Linked Data’ is used to describe a method of exposing, sharing, and connecting data on the web”<br />(http://consulting.talis.com/case-study/ordnace-survey-open-data)<br />
  3. 3. LODLAM<br />http://lod-lam.net/summit/about/<br />It’s an unconference dude!!<br />http://www.flickr.com/photos/captsolo/5790930338/<br />
  4. 4. What does this man and this band have in common?<br />They both appear as linked data on the internet!<br />
  5. 5. What do these two things have in common?<br />Melbourne<br />Bearbrass<br />They are different names for the same geographic location, and they appear on the internet as linked open data...but I digress.<br />
  6. 6. First things first…<br />An introduction to the semantic web<br />http://youtube.com/watch?v=OGg8A2zfWKg<br />
  7. 7. Some insightful words on linked open data by Dr Tim Sherratt<br />http://www.slideshare.net/wragge/a-hopefully-fairly-painless-introduction-to-linked-open-data<br />http://discontents.com.au/foaf.rdf<br />(Tim’s explanation of the ‘things’ he’s about using the foaf ontology)<br />http://ow.ly/i/dZWu/original<br />(my visualisation of the foaf excerpt above using http://semweb.salzburgresearch.at/apps/rdf-gravity/)<br />
  8. 8. How do we describe data e.g. people, places, events, thoughts, feelings, images, twitter accounts to a machine?<br />We need ontologies, formats, a way of uniquely identifying things, and a way of making these things discoverable over the internet<br />If we do this we can start to make assertions about things that describe them in terms that machines can understand<br />Then machines can help us link all this data together so that the internet becomes one big global database of human knowledge<br />
  9. 9. Ontologies?<br />http://schemapedia.com<br />Formats?<br />RDF describes resources with classes, properties, and values<br />e.g. Asa is a person with a weight of x kgs<br />http://www.w3schools.com/rdf/rdf_intro.asp<br />
  10. 10. Linked Open Data Five Star Rating Scheme<br />http://www.w3.org/DesignIssues/LinkedData.html<br />
  11. 11. Linking Open Data cloud diagram <br />http://richard.cyganiak.de/2007/10/lod<br />
  12. 12. Examples please of real world applications!!!!!!<br />http://wiki.dbpedia.org/About<br />http://dbpedia.neofonie.de/browse/<br />http://visualdataweb.org/relfinder/relfinder.php<br />
  13. 13. But wait there’s more!<br />http://www.europeana.eu/portal/aboutus.html<br />http://www.europeana.eu<br />http://www.europeana.eu/portal/thoughtlab.html<br />
  14. 14. And what about Australia?<br />http://trove.nla.gov.au<br />http://www.powerhousemuseum.com/collection/database/<br />http://www.opencalais.com/about<br />
  15. 15. Opportunities for PROV?<br />http://www.prov.vic.gov.au/online-exhibitions/deeming/story01-murder.htm<br />http://viewer.opencalais.com/<br />
  16. 16. Natural Language, Intelligents Agents, Skynet?<br />http://www.wolframalpha.com/about.html<br />
  17. 17. Other Resources<br />http://tomheath.com/papers/bizer-heath-berners-lee-ijswis-linked-data.pdf<br />http://www.cdlib.org/services/dsc/technical.html<br />http://blogs.ukoln.ac.uk/locah/2010/07/<br />http://archiveshub.ac.uk/system/<br />http://www.slideshare.net/tinglebrian/snac-dh2011june2011<br />http://xtf.cdlib.org/<br />http://openspring.net/sites/openspring.net/files/corl-etal-2009iswc.pdf<br />http://thatcamp.org/<br />
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