[ckan-dev] RDF about CKAN datasets: not as good as it used to be.

Wed May 23 12:51:58 UTC 2012

Ross,

On May 23, 2012, at 8:31 AM, Ross Jones wrote:

> 
> At this point it is unlikely that we will reinstate semantic.ckan.net running gockan,

That seems to make sense.

> but we are replacing it with a virtuoso install hosted very kindly by openlink so that we do still provide a SPARQL endpoint. 

That's great. I am also looking for the RDF upon URI dereference.

> 
> Having said that we're open to help, advice and guidance on improving the RDF that we currently generate.

> I believe there's an ongoing discussion about the rdf export and potential for void import

Then it does make sense for me to play with gockan, so that we have a reasonable baseline for discussion.
I see where this fits now.

FWIW, I've started a python implementation that uses the ckanclient to produce RDF. Some example(s),

 curl -H "Content-Type: text/turtle" -d ' @prefix datafaqs: <http://purl.org/twc/vocab/datafaqs#> . <http://thedatahub.org/dataset/farmers-markets-geographic-data-united-states>
 a datafaqs:CKANDataset .' http://aquarius.tw.rpi.edu/projects/datafaqs/services/sadi/ckan/lift-ckan

 curl -H "Content-Type: text/turtle" -d ' @prefix datafaqs: <http://purl.org/twc/vocab/datafaqs#> . <http://thedatahub.org/dataset/dbpedia>
 a datafaqs:CKANDataset .' http://aquarius.tw.rpi.edu/projects/datafaqs/services/sadi/ckan/lift-ckan

> - but at this point I don't know all of the parties that would want to be involved, and I worry it is getting lost in ckan-dev traffic, which I think is only going to get noisier in the immediate future.
> 
> At the risk or raising everyone's ire about yet more mailing lists, I wonder whether it would be best suited for ckan + linked-data discussion to happen on another mailing list so that the conversation doesn't get lost in the noise.  I'm not 100% sure of this but would appreciate feedback on the idea.

Whichever is fine for me. I just hope that I'm not bothering this list.

Regards,
Tim

> 
> Ross
> 
> 
> On 23 May 2012, at 13:19, Timothy Lebo wrote:
> 
>> Thanks, Ross.
>> 
>> I'll play with it and see what I get.
>> 
>> If I build it, will that lead to getting its functionality back into thedatahub's current deployment?
>> 
>> Thanks,
>> Tim
>> 
>> On May 23, 2012, at 5:00 AM, Ross Jones wrote:
>> 
>>> 
>>> I think Will's code is at  https://bitbucket.org/okfn/gockan . If you want to build this for the release version of go the 'fix' command ( http://golang.org/cmd/go/#Run_go_tool_fix_on_packages ) may help you fix any incompatabilities and I might be able to suggest solutions for you if it doesn't build cleanly.
>>> 
>>> Ross
>>> 
>>> 
>>> On 22 May 2012, at 16:44, Timothy Lebo wrote:
>>> 
>>>> 
>>>> On May 22, 2012, at 11:41 AM, David Read wrote:
>>>> 
>>>>>> My old copies of the dataset descriptions mentioned a "GoLD CKAN 1.0" that was credited for the nicer modeling.
>>>>> 
>>>>> This sounds like Will Waites' thing he developed. It is a standalone
>>>>> program in Go that gets datasets from CKAN and serves them as RDF. I'm
>>>>> copying him in in case he can remember where it was hosted and where
>>>>> the source is.
>>>> 
>>>> Thanks, David.
>>>> 
>>>> I know see where "GoLD" comes from. Nice :-)
>>>> 
>>>> -Tim
>>>> 
>>>>> 
>>>>> David
>>>>> 
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>>>>> 
>>>> 
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