Linked open data for science, culture and society

Presentations by Johannes Keizer is licensed under a Creative Commons Attribution-

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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

www.fao.org

“... 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 ...”

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


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.



A big cloud! But how much linked?“Linking Open Data cloud diagram, by Richard Cyganiak and Anja Jentzsch. http://lod-cloud.net/”

Do libraries have a specific role?


..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


……a bibliographical record original


…the same record transformed


……using title and author


……using the key words


……using the key words


…using the journal name



http://agris.fao.org/openagris/search.do?recordID=PL2009000495


Linking URIs


Linking vocabularies


RDF- the basis for linked data


http://www.bbc.co.uk/nature/life/Orthoptera

22


http://www.bbc.co.uk/nature/life/Orthoptera.rdf

23


The BBC Grasshopper page links to a news article…

24


http://news.bbc.co.uk/earth/hi/earth_news/newsid_8172000/8172168.stm

25


…and to a DBPedia category…

26


http://dbpedia.org/page/Orthoptera

27


…using information extracted from Wikipedia.

28


EUROPEANA:http://www.europeana.eu/portal/

UDC-2011, The Hague


Linked Open Vocabularies


Creating Linked Applications

..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]

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Linked open data for science, culture and society