linked open data for science, culture and society
TRANSCRIPT
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Presentations by Johannes Keizer is licensed under a Creative Commons Attribution-
NonCommercial-ShareAlike 3.0 Unported License.
Dr. Johannes KeizerOffice of Knowledge Exchange, Research and ExtensionFood and Agriculture Organization of the UN
Linked open data for science, culture and society
Presentation at the National Library of China, Beijing, 2012-09-16
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www.fao.org
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“... FAO’s principle task is to work to ensure that the world’s knowledge of food and agriculture is available to those who need it when they need it and in a form which they can access and use ...”
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johannes keizerhttp://aims.fao.org
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johannes keizerhttp://aims.fao.org
http://agris.fao.org
AGRIS is a global public domain Database with 2870782 structured bibliographical records on agricultural science and technology. 78.95% of records are citations from scientific journals. The bibliographic references contain either links to the full text of the publication or additional information retrieved from related Internet resources
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johannes keizerhttp://aims.fao.org
Tim Berners Lee at TED 2009 on Linked Data
All kinds of conceptual things, they have names now that start with HTTP.
I get important information back. I will get back some data in a standard format which is kind of useful data that somebody might like to know about that thing, about that event.
I get back that information it's not just got somebody's height and weight and when they were born, it's got relationships. And when it has relationships, whenever it expresses a relationship then the other thing that it's related to is given one of those names that starts with
HTTP.
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johannes keizerhttp://aims.fao.org
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johannes keizerhttp://aims.fao.org
A big cloud! But how much linked?“Linking Open Data cloud diagram, by Richard Cyganiak and Anja Jentzsch. http://lod-cloud.net/”
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Do libraries have a specific role?
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johannes keizerhttp://aims.fao.org
..yes, very much We have tons of structured and semi -
structured information in bibliographical databases
Many of these bibliographical records are using some standard vocabularies, i.e.
• AGROVOC: 300 to 1000 data sets all over the world
• CABI: at least 100?
• NALT: some 100s in the USA
• LCSH: enormous numbers of bib. Databases
One vocabulary catches multiple datasets
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johannes keizerhttp://aims.fao.org
……a bibliographical record original
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johannes keizerhttp://aims.fao.org
…the same record transformed
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johannes keizerhttp://aims.fao.org
……using title and author
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johannes keizerhttp://aims.fao.org
……using the key words
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johannes keizerhttp://aims.fao.org
……using the key words
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johannes keizerhttp://aims.fao.org
…using the journal name
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johannes keizerhttp://aims.fao.org
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johannes keizerhttp://aims.fao.org
http://agris.fao.org/openagris/search.do?recordID=PL2009000495
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johannes keizerhttp://aims.fao.org
Linking URIs
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johannes keizerhttp://aims.fao.org
Linking vocabularies
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johannes keizerhttp://aims.fao.org
RDF- the basis for linked data
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johannes keizerhttp://aims.fao.org
http://www.bbc.co.uk/nature/life/Orthoptera
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johannes keizerhttp://aims.fao.org
http://www.bbc.co.uk/nature/life/Orthoptera.rdf
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johannes keizerhttp://aims.fao.org
The BBC Grasshopper page links to a news article…
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johannes keizerhttp://aims.fao.org
http://news.bbc.co.uk/earth/hi/earth_news/newsid_8172000/8172168.stm
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johannes keizerhttp://aims.fao.org
…and to a DBPedia category…
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johannes keizerhttp://aims.fao.org
http://dbpedia.org/page/Orthoptera
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johannes keizerhttp://aims.fao.org
…using information extracted from Wikipedia.
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johannes keizerhttp://aims.fao.org
EUROPEANA:http://www.europeana.eu/portal/
UDC-2011, The Hague
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johannes keizerhttp://aims.fao.org
Linked Open Vocabularies
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johannes keizerhttp://aims.fao.org
Creating Linked Applications
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..when you have time.... http://agris.fao.org/ http://aims.fao.org/openagris http://aims.fao.org/agrovoc/lod http://aims.fao.org/standards/lode-bd [rural population]
http://agris.fao.org/openagris/search.do?recordID=FR2001001041 [cereal yield]
http://agris.fao.org/openagris/search.do?recordID=QM2008000025 [Poverty]
http://agris.fao.org/openagris/search.do?recordID=BY2006000350 [Fish WB + FAO fisheries]
http://agris.fao.org/openagris/search.do?recordID=PL2009000495 [Fish WB + FAO fisheries]
http://agris.fao.org/openagris/search.do?recordID=JP2010001379 [GBIF, Country Profiles, DBPedia]