Linked Open Data and data-driven journalism
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Transcript of Linked Open Data and data-driven journalism
Linked Open Data –why media/journalists should care and make use of
it!
Pia Virmalainen Jøsendal
Today´s agenda..
Take a moment and think…
“OH, I wish i could see connections between this and this and this and that without searching everywhere and drawing my own mindmap…!”
What is Linked Open Data?
Guidelines to publish, structure and link data on the web
Web of data Semantic Web technologies
“Linked data is the first practical expression of the semantic
web, useful and doable today, and applicable to all forms
of data.” (http://structureddynamics.com/linked_data.html)
open data and linked data
Open datadata available without restrictions – independent of format
Linked datalinks data together by relations to contextualize them
(I Norge brukes også Offentlige data vekselvis med Åpne data og Public Sector Information (PSI))
1ST
linked data and semantic web
Linked data
Semantic web - a machine readable set of standards URI, HTTP, RDF, SPARQL (W3C)- a vision to improve meaning in content on the web by defining relations between data
2ND
Linked open data as the original web
Semantic web enables
a linked open data web
What is Linked Open Data about?
Bottom line
The more data being provided and made available to the public as OPEN, LINKED and accessible with semantically defined content..
…the smarter our applications can be..
Source: http://www.readwriteweb.com/archives/open_data_linked_data_semantic_web.php
From databases to graphs
Hvorfor?
Group & define
The challenge with hierarchies and classification
People look for patterns
Interpretation has always been difficult
As always – people are different and as situations change, context changes
How about…
Don’t put data into tight boxes that are hard to reach down into and drag something out of… › the coat most often gets wrinkled…› A triangle doesn’t fit in a round hole..
And create a nice pair of shaded sunglasses for the data set to wear at appropriate occations…?
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LOD is a line of principles to align data many pair of glasses to look at the material
An architecture presented like ONE archive
Oktober 2007500 million triples
Cirka 120 000 links between resources
September 2010
Challenging assembly of information?
Using Linked Data
Confused?
Growth of Linked Open Data
http://www.slideshare.net/init_brussels/cyganiakrichardstateofplaylod
Government projects
Large potential for reuse
Existing useful vocabularies
There are already a bunch of wellknown vocabularies to use out there:
› Simple Knowledge Organisation System SKOS, › Dublin Core DC,› Friend-of-a-friend FOAF, › Creative Commons CC, › Music Ontology MO
Creative use of weather data
Based on data from YR
Planning the weather…
http://data.nytimes.com/
]init[ - Services for the eSociety
Working “to support society's protagonists and organisations in their leading role in the modern society”
eGovernment and eBusiness
Enterprise Linked DataIs there data which, if published, could make your business more efficient, or generate value, whether directly or indirectly?
Vocabulary “GoodRelations” for eCommerce
A concluding rehearsal..
Try to… ..listen to the person next to you.. ..when he/she starts to clap.. ..and you yourself start to clap.. ..and try to clap at the same pace..
..untill..
Get lodding!
“to lod (verb): lod, lodded, lodding – the act of publishing linked open data on the World Wide Web, adhering to the rules of
linked data.” (http://kantenwerk.org/2009/03/16/there-is-probably-no-semantic-web/)
credits
Flower analogy – Dr. Hans Rosling/ Karolinska Institutt
Social networks – David Simons/The economist
Video Tim Berners-Lee/TEDTalks Weather examples – Erik Bolstad/NRK
Thank you for your attention!
questions?
To contact me:
Name: Pia Virmalainen JøsendalTwitter: mspjvj