[ckan-dev] Essence of DCAT and Linked data in CKAN

[Deirdre Lee]

Hi Amit,

You might also be interested in the Linked Open Statistical Data (LOSD) 
project we are working on with a number of European National Statistical 
Organisations. We have developed a practical and complete LOSD pipeline 
for the publishing of Statistical Data on the Semantic Web.

CKAN is used as part of the LOSD Pipeline for data publishing and 
conversion purposes. More info in this recent presentation 
<https://www.slideshare.net/deirdrelee/linked-open-statistical-data-losd-pipeline>.

And we will also holding a webinar 
<https://www.eventbrite.com/e/losd-webinar-ii-statistical-lod-from-a-user-perspective-tickets-56869665701>next 
Tue 19th March, which all are more than welcome to join.

Cheers,

Deirdre

On 15/03/2019 11:03, amit tiwari wrote:
> Thank you very much for your quick and precise response.
>
> On Fri, Mar 15, 2019, 1:34 PM Steven De Costa 
> <steven.decosta at linkdigital.com.au 
> <mailto:steven.decosta at linkdigital.com.au>> wrote:
>
>     Here is the presentation from the Madrid CKANCon which Stefan is
>     referring to :)
>
>     https://www.slideshare.net/mobile/u10313335/open-data-web-a-linked-open-data-repository-built-with-ckan
>
>
>     On Fri, Mar 15, 2019 at 8:24 AM, Stefan Oderbolz <odi at metaodi.ch
>     <mailto:odi at metaodi.ch>> wrote:
>
>         Hi,
>
>         Your questions are very broad, I try to answer them to the
>         best of my knowledge.
>
>
>             1. What is the essence of DCAT in CKAN?
>
>
>         CKAN does not support DCAT out of the box, but there is the
>         ckanext-dcat extension (https://github.com/ckan/ckanext-dcat)
>         to add DCAT functionality.
>
>
>              2. How to see the information about DCAT in my CKAN instance?
>
>
>         Assuming you're using ckanext-dcat, it provides several
>         DCAT-specific API endpoints to expose CKAN datasets or even
>         the whole catalogue as RDF. Plese see the README for details:
>         https://github.com/ckan/ckanext-dcat/blob/master/README.md#rdf-dcat-endpoints
>
>
>             3. How can linked data help in CKAN repository.
>
>
>         This depends on your use case. It might be useful to expose
>         your metadata as RDF for harvesting purposes.
>         But if you define "linked data" as exposing metadata + actual
>         data, you need a triple store, which CKAN currently does not
>         provide. I'm not aware of an extension that does that, but I
>         remember a talk at CKANCon some years ago about that topic.
>         Maybe someone else has more details.
>
>         Another take on this is exposing your data as "structured
>         data" (JSON-LD) so your favourite search engine has more
>         information about your datasets. I wrote a blogpost about this
>         a while ago
>         (https://www.liip.ch/en/blog/make-open-data-discoverable-for-search-engines)
>         and you can find it in the README of ckanext-dcat as well
>         (https://github.com/ckan/ckanext-dcat/blob/master/README.md#structured-data-and-google-dataset-search-indexing)
>
>
>             4. What are the different functionalities in which linked
>             data can make impacts?
>
>
>         Again this is not related to CKAN, but generally Linked Data
>         helps to connect your data to others. With SPARQL you have a
>         powerful query language and with federated queries you can get
>         answers based on several data sources (e.g. Wikidata, a
>         statistic office and yourhown data).
>
>
>         Hope this helps.
>
>         - Stefan
>
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>     -- 
>     P.S. I'd love to see your support of open data in Ethiopia (and
>     the CKAN project) via a small donation here:
>     https://www.gofundme.com/ethiopia-needs-open-data-experts
>     *
>     *
>     *STEVEN DE COSTA *|*EXECUTIVE DIRECTOR
>     *www.linkdigital.com.au <http://www.linkdigital.com.au/>
>
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-- 
------------------------------------
Deirdre Lee, CEO & Founder
Derilinx - Linked & Open Data Solutions
  
Web:www.derilinx.com
Email:deirdre at derilinx.com
Address:  11/12 Baggot Court, Dublin 2, D02 F891
Tel:      +353 (0)1 254 4316
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Linkedin: ie.linkedin.com/in/leedeirdre/
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