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Re: Agenda for 2020-11-27

From: Pierre-Antoine Champin <pierre-antoine.champin@ercim.eu>
Date: Fri, 27 Nov 2020 14:26:02 +0100
To: "Peter F. Patel-Schneider" <pfpschneider@gmail.com>, public-rdf-star@w3.org
Message-ID: <ccdb174a-a8d7-fbf4-2223-fc064150b0ff@ercim.eu>
On 26/11/2020 23:21, Peter F. Patel-Schneider wrote:

> Probably the most important of my proposed tests is whether malformed literals
> are correctly handled outside of embedded triples, but this test does not
> appear to have been incorporated into the test suite.
oops, I missed that one. That's fixed.
> This test could be transformed into an entailment test (instead of a
> consistency test) as follows:
>
>
>
> Are malformed literals handled correctly outside of embedded triples?
>
> prefix : <http://example.com/ns#>
> prefix xsd: <http://www.w3.org/2001/XMLSchema#>
> :a :b "c"^^xsd:integer .
>
> entails
>
> prefix : <http://example.com/ns#>
>
> :a :b :c .

You are right, but that would not solve my problem when it comes to 
checking entailment through SPARQL.

Looking briefly at https://www.w3.org/TR/sparql11-entailment/, it seems 
to me that inconsistent graphs are not expected to yield arbitrary 
triples... Anyway, the four systems that I have tested don't do that.

>
>
> peter
>
>
> On 11/26/20 3:59 PM, Pierre-Antoine Champin wrote:
>> Perer,
>>
>> Very good point, and thanks for that bunch of tests. I jave integrated them
>> in the test suite.
>>
>> And here are the updated results.
>>
>>    best
>>
>> On 26/11/2020 18:56, Peter F. Patel-Schneider wrote:
>>> Interesting results, but the test suite is not adequate to explain why some of
>>> the results are obtained.  For example, BlazeGraph might just be failing to do
>>> RDFS++ entailment correctly.
>>>
>>> So I propose the following extra test cases.
>>>
>>>
>>> Do embedded triples entail triple with term replaced by different
>>> non-blank-node trem
>>>
>>> prefix : <http://example.com/ns#>
>>> << :a :b :c >> :p1 :o1.
>>>
>>> does not entail
>>>
>>> prefix : <http://example.com/ns#>
>>> << :a :b :d >> :p1 :o1.
>>>
>>>
>>> Are malformed literals handled correctly outside of embedded triples?
>>>
>>> prefix : <http://example.com/ns#>
>>> prefix xsd: <http://www.w3.org/2001/XMLSchema#>
>>> :a :b "c"^^xsd:integer .
>>>
>>> must be a contradiction
>>>
>>>
>>> Are malformed literals handled correctly inside embedded triples?
>>>
>>> prefix : <http://example.com/ns#>
>>> prefix xsd: <http://www.w3.org/2001/XMLSchema#>
>>> << :a :b "c"^^xsd:integer >> :p1 :o1.
>>>
>>> does entail
>>>
>>> prefix : <http://example.com/ns#>
>>> prefix xsd: <http://www.w3.org/2001/XMLSchema#>
>>> << :a :b "c"^^xsd:integer >> :p1 :o1.
>>>
>>>
>>> prefix : <http://example.com/ns#>
>>> prefix xsd: <http://www.w3.org/2001/XMLSchema#>
>>> << :a :b "c"^^xsd:integer >> :p1 :o1.
>>>
>>> does not entail
>>>
>>> prefix : <http://example.com/ns#>
>>> prefix xsd: <http://www.w3.org/2001/XMLSchema#>
>>> << :a :b "d"^^xsd:integer >> :p1 :o1.
>>>
>>>
>>> prefix : <http://example.com/ns#>
>>> prefix xsd: <http://www.w3.org/2001/XMLSchema#>
>>> << :a :b "c"^^xsd:integer >> :p1 :o1.
>>> << :d :b "c"^^xsd:integer >> :p2 :o2.
>>>
>>> does entail
>>>
>>> prefix : <http://example.com/ns#>
>>> prefix xsd: <http://www.w3.org/2001/XMLSchema#>
>>> << :a :b _:x >> :p1 :o1.
>>> << :d :b _:x >> :p2 :o2.
>>>
>>>
>>> prefix : <http://example.com/ns#>
>>> prefix xsd: <http://www.w3.org/2001/XMLSchema#>
>>> << :a :b "c"^^xsd:integer >> :p1 :o1.
>>> << :d :b "d"^^xsd:integer >> :p2 :o2.
>>>
>>> does not entail
>>>
>>> prefix : <http://example.com/ns#>
>>> prefix xsd: <http://www.w3.org/2001/XMLSchema#>
>>> << :a :b _:x >> :p1 :o1.
>>> << :d :b _:x >> :p2 :o2.
>>>
>>>
>>>
>>> Is owl:sameAs handled correctly outside of embedded triples?
>>>
>>> prefix : <http://example.com/ns#>
>>> prefix owl: <http://www.w3.org/2002/07/owl#>
>>> :superman :can :fly .
>>> :clark owl:sameAs :superman.
>>>
>>> entails (under RDFS++ entailment regime)
>>>
>>> prefix : <http://example.com/ns#>
>>> :clark :can :fly .
>>>
>>> On 11/26/20 11:56 AM, Pierre-Antoine Champin wrote:
>>>> To feed tomorrow's discussion on test-cases, I have adapted my script
>>>> (attached) to run the test suite on the RDF stores I have installed. The
>>>> result is given in the attached files (raw output of the script, and a
>>>> reorganized version in TSV).
>>>>
>>>>    best
>>>>
>>>> On 26/11/2020 13:21, Pierre-Antoine Champin wrote:
>>>>> Hi all,
>>>>>
>>>>> tomorrow's call will be again on
>>>>> https://classe-publique.univ-lyon1.fr/cha-2x1-tjt-iu3
>>>>>
>>>>> and we will use W3C IRC server (http://irc.w3.org/) to minute the call, on
>>>>> channel #rdf-star
>>>>>
>>>>> I propose the following Agenda:
>>>>>
>>>>> * New people on the call introduce themselves
>>>>>
>>>>> * Review pending actions
>>>>>
>>>>>       -
>>>>> https://github.com/w3c/rdf-star/issues?q=is%3Aopen+is%3Aissue+label%3Aaction
>>>>>
>>>>> * Vote for merging Jeen Broekstra's pull request about SPARQL* result
>>>>> formats
>>>>>
>>>>>       - https://github.com/w3c/rdf-star/pull/39
>>>>>
>>>>>       - preview available here:
>>>>> http://champin.net/tmp/rdf-star-pr39.html#query-result-formats
>>>>>
>>>>> * Discuss the tests cases in the proposed semantics test-suite:
>>>>>
>>>>>       - https://github.com/w3c/rdf-star/issues/37
>>>>>
>>>>>       The goal being to mark as many of them as approved or rejected.
>>>>>
>>>>> Best
>>>>>

Received on Friday, 27 November 2020 13:26:08 UTC

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