[open-development] FW: [LinkInfo4Dev] Linked data example published

Wed Feb 9 09:15:57 UTC 2011

Folks,

I¹m cross-posting this here for those who aren¹t on the LinkInfo4Dev list.

There's also a blog post summarising the work at:

http://thegiraffe.wordpress.com/2011/02/09/linked-data-experiment/

With kind regards,

Tariq

------ Forwarded Message
From: Chris Addison <c.addison at cgiar.org>
Reply-To: LinkInfo4Dev <LinkInfo4Dev at dgroups.org>
Date: 9 Feb 2011 07:19:36 +0100
To: LinkInfo4Dev <LinkInfo4Dev at dgroups.org>
Subject: [LinkInfo4Dev] Linked data example published

Dear Colleagues

As a result of the meeting in London Tim Davies has worked with us on
publishing the Global Hunger Index as a linked data set and described the
process.

See http://data.ifpri.org/rdf/ghi/ for the data explanation and files.

I would also like to post an entry to the giraffe blog if people feel the
following is suitable (Hugo I have sent you a version with hyperlinks, but
this doesn¹t display in DGROUPS).

LINKED DATA EXPERIMENT
Linked data - the machine readable web, as the inventor of the Web Tim
Berners Lee explains here is the next layer of the web. He developed a five
star rating to describe information which is fully compliant with the
semantic web and allows it to become part of the growing web of linked data.
In the recent discussion paper IKMemergent explained why this was relevant
for the international development community.

As a result of participation in the IKMemergent Workshop in London in
November IFPRI has taken the Global Hunger Index (GHI) as an example and
published it as a linked data RDF files and documented the experience. We
worked with Practical participation to develop the initial files and seek
guidance on the options and approaches for publishing linked data. This is
the first stage of the project to make the data available and then monitor
its use and look at ways to promote and integrate it with more datasets.

Groups have already used the original data of the GHI to produce new
mappings of the data, see the examples from Tableau and Chartsbin. By
publishing the linked data we hope others will integrate the information
with other visualizations and disseminate the results of the report.
Linked data has already been used by the international community to bring
together different datasets, for example comparing Aid from the UK and USA.
The process of initially setting up a process to publish linked data sets is
involved, but obviously with a recurring dataset such as the Global hunger
Index it is easy to update.

The process is involved with four core elements 1)Choice of formats- Tim
chose two SCOVO and an RDF data cube model 2)Initial conversion from a CSV
file to far more verbose RDF file done with the use of a free online tool,
3)The identification of key authorities for countries and 4)The related
provenance and process texts. The whole process is described in the
documentation.

Although the datasets prove challenging to convert, information on many of
any organisations other outputs such as publications and presentations is
already available in Linked data form. For example the hundred or so
wikipedia pages featuring links and descriptions of IFPRI output are already
part of the web of linked data through Dbpedia. A sample of metadata
describing IFPRI presentations, collections and twitter accounts can be seen
through Sindice.

Get the data
At present the GHI 2010 data is made available in two different forms and is
available in raw RDF/XML and N3 files. http://data.ifpri.org/rdf/ghi/

regards

Chris

|Chris Addison|Head of Web Communications|IFPRI 2033 K street Washington DC
20006|+1 202 862 8180|Skype:chrisaddison|

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