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Re: Improving EXISTS

From: Peter F. Patel-Schneider <pfpschneider@gmail.com>
Date: Thu, 30 Jun 2016 08:45:44 -0700
To: Karima Rafes <karima.rafes@gmail.com>
Cc: Andy Seaborne <andy@apache.org>, public-sparql-dev@w3.org
Message-ID: <9595e624-6aae-4397-0278-8b9fe5ba1d80@gmail.com>
That's interesting, but when I click on any of the systems, I get asked for a
password so I can't see the actual results.

peter


On 06/30/2016 05:04 AM, Karima Rafes wrote:
> Hello
> 
>> The CG would document a solution and create tests to pass over to the "RDF Tests" CG [3].
> 
> My company can join at this effort and can fusion the tool sparqlscore
> [1] and a SPARQL editor [2], if the W3C needs to help.
> With this new tools, the process to create a new test would be very
> short and a new benchmark would be available in 24h .
> 
> Karima
> [1] http://sparqlscore.com/
> [2] https://io.datascience-paris-saclay.fr/exampleInsertUpdate.php
> 
> 2016-06-30 13:45 GMT+02:00 Peter F. Patel-Schneider <pfpschneider@gmail.com>:
>> I would join.
>>
>> peter
>>
>> On 06/30/2016 04:40 AM, Andy Seaborne wrote:
>>> There are bugs in the SPARQL specification with regards to EXISTS. The RDF
>>> Data Shapes working group uses EXISTS, and other related mechanisms, in SHACL
>>> [1].
>>>
>>> W3C process for corrections is recognized generally to be inflexible. It
>>> is normally to wait for the next WG to run and end which is a multiyear
>>> cycle - that does not fit with the RDF Data Shapes WG timescale.
>>>
>>> Community Groups can publish reports. These are not W3C standards. They
>>> do provide a way to record consensus or enumerate alternatives. This could be
>>> used to supplement the SPARQL errata process [2].
>>>
>>> A suggestion is to use the W3C Community Group mechanism to describe a
>>> solution to this specific area in a timely manner. The CG would document a
>>> solution and create tests to pass over to the "RDF Tests" CG [3].  If there is
>>> no single consensus on one solution within the SPARQL community, including
>>> implementers and users, we can at least document a small set of approaches and
>>> note the approaches taken by implementations.
>>>
>>> Thoughts and comments?
>>>
>>> Please indicate if you would join such an effort.
>>>
>>>     Andy
>>>
>>> [1] http://w3c.github.io/data-shapes/shacl/
>>> [2] https://www.w3.org/2013/sparql-errata
>>> [3] https://www.w3.org/community/rdf-tests/
>>>
>>>
>>
Received on Thursday, 30 June 2016 15:46:22 UTC

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