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Re: Triplestores and their supported RDF import formats, and RDF output via CONSTRUCT

From: Mischa Tuffield <mischa.tuffield@garlik.com>
Date: Wed, 6 Apr 2011 20:20:22 +0100
To: Semantic Web <semantic-web@w3.org>, public-rdf-wg Group WG <public-rdf-wg@w3.org>
Message-Id: <A688C63C-9115-4A6B-8172-30AD65E5AA14@garlik.com>
Hello again All, 

*I know I am cross-posting sorry!*

Firstly a thank you to everyone with responded to my first email on this thread and helped me populate the table on w3.org: 

> http://www.w3.org/2011/rdf-wg/wiki/TriplestoreRDFSupport


But I have a subsequent request to the community. Given that all of the triplestores seems to support some sort of JSON RDF representation, and I don't really want to have to install and/or pay for the various triplestores, would people running any of ones listed below do me a little favour? Would you import the sample turtle file htttp://mmt.me.uk/misc/example.ttl into your triplestore and then output the triples in the JSON format your installed triplestore supports?

Anzo 	
Allegrograph 
ARC2 
Mulgara 
RDF::Query 
Virtuoso 

I have done this for 4store (using libraptor) there are two available json formats in libraptor "json" and "json-triples", the output of the example turtle file in the two formats can be found at the end of these two urls: 


"json" 			http://mmt.me.uk/misc/example.json.ttl
"json-triples"		http://mmt.me.uk/misc/example.json.ttl 

sample turtle file  http://mmt.me.uk/misc/example.ttl 

I will then add the outputted data to the wiki page on w3.org, I am hoping this may help the RDF JSON task-force out with what they are planning to do. 

Feel free to email me links and or files, I am happy get them all up somewhere nice and tidy. 

Regards, 

Mischa

On 6 Apr 2011, at 15:19, Mischa Tuffield wrote:

> Hi All, 
> 
> Sorry for cross-posting, but I thought I would send this out to WG and to the Semantic Web community at large. 
> 
> I have been putting together a table listing the various RDF serialisations supported by triplestores, in terms of import formats and output formats via SPARQL's CONSTRUCT verb. Please have a look at the table, and let me know if I have missed anything out, and if you feel that I have misrepresented any of the systems.
> 
> http://www.w3.org/2011/rdf-wg/wiki/TriplestoreRDFSupport
> 
> If you don't have access to the wiki to make the changes yourself, do let me know and I will aim to make any changes as soon as I can.
> 
> Regards, 
> 
> Mischa
> ___________________________________
> Mischa Tuffield PhD
> Email: mischa.tuffield@garlik.com
> Homepage - http://mmt.me.uk/
> Garlik Limited, 1-3 Halford Road, Richmond, TW10 6AW
> +44(0)208 439 8200  http://www.garlik.com/
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___________________________________
Mischa Tuffield PhD
Email: mischa.tuffield@garlik.com
Homepage - http://mmt.me.uk/
Garlik Limited, 1-3 Halford Road, Richmond, TW10 6AW
+44(0)208 439 8200  http://www.garlik.com/
Registered in England and Wales 535 7233 VAT # 849 0517 11
Registered office: Thames House, Portsmouth Road, Esher, Surrey, KT10 9AD



Received on Wednesday, 6 April 2011 19:21:11 GMT

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