good afternoon;
> On 2016-07-04, at 16:49, Peter F. Patel-Schneider
> wrote:
>
> On 07/03/2016 04:08 PM, james anderson wrote:
>> good morning;
> [...]
>> [i reiterate, repeat, and implore] (see
>> please,
>> https://www.researchgate.
good morning;
> On 2016-07-02, at 12:40, Peter F. Patel-Schneider
> wrote:
>
> On 07/01/2016 10:20 PM, james anderson wrote:
>>
>>> On 2016-07-01, at 22:47, Peter F. Patel-Schneider >> <mailto:pfpschnei...@gmail.com>> wrote:
>>>
>>
> On 2016-07-01, at 22:47, Peter F. Patel-Schneider
> wrote:
>
> On 07/01/2016 01:34 PM, james anderson wrote:
>> good evening;
>>
>>> On 2016-06-30, at 15:05, Peter F. Patel-Schneider >> <mailto:pfpschnei...@gmail.com>> wrote:
>>>
&
note that, in the issue descriptions which followed, the conclusions are
subject to discussion, as they follow from interpretations of the
recommendation which are not universal.
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
ts - in combination with arbitrary
sub-expressions, would follow.
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
follow this, this reduction obtains iff the project has no effect on the
scope the binding for ?x which was established by the outer extend.
is that intended?
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
> On 2016-06-17, at 23:25, Peter F. Patel-Schneider
> wrote:
>
> On 06/17/2016 12:55 PM, james anderson wrote:
>> good evening;
> [...]
>
>>>> we understand the recommendation differently.
>>>> in particular, from the document context, it should
ing
> a bunch of test cases for EXISTS to document how it works in the current spec.
> See
> https://lists.w3.org/Archives/Public/public-rdf-tests/2016Jun/0000.html
>
>> thanks,
>> .greg
>>
>> [2] https://w3c.github.io/rdf-tests/
>
> peter
---
james anderson | ja...@dydra.com | http://dydra.com
oach and suggest it would be more worthwhile
>> to argue directly for clear and adequate definitions.
>
> I agree that there needs to be an adequate definition of EXISTS.
>
> I further believe that the current definition of EXISTS, and in particular
> the current definition of substitute, is broken bad. So fixing it is not
> just a matter of clarifying and extending the definition but has to instead
> replace the definition in a way that changes the behaviour of SPARQL.
>
> To argue otherwise is to argue that some current implementations have made
> unfounded assumptions about EXISTS that don't conform to the correct
> clarification of the specification and thus should be changed. Instead the
> argument has to be that it is necessary to change the SPARQL spec in a way
> that delegitimizes some current implementations that are currently
> legitimate and legitimizes other current implementations that are currently
> illegitimate. My hope is that this latter argument will be made
> successfully!
>
> [...]
>
> peter
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
the scope
- {graph ?x … } to have scope limited by projection which did not include ?x
- {graph ?? { service … } } to limit scope
where, for the service case, i am ambivalent.
>
> I sometimes get results for this sort of query that surprise me, and so I
> tend to explicitly repeat the
good morning;
> On 2016-06-17, at 14:18, Peter F. Patel-Schneider
> wrote:
>
> On 06/17/2016 05:01 AM, james anderson wrote:
>> good afternoon;
>>
>>> On 2016-06-17, at 13:16, Peter F. Patel-Schneider >> <mailto:pfpschnei...@gmail.com>>
good afternoon;
> On 2016-06-17, at 13:16, Peter F. Patel-Schneider
> wrote:
>
>> On 17 Jun 2016, at 03:58, james anderson wrote:
>>
>> good morning;
>>
>>> On 2016-06-17, at 01:11, Peter F. Patel-Schneider
> wrote:
>>>
> [...]
&
on
> and so little explanation, that it leads to non-interoperable implementations
> and should be replaced.
would that be acceptable?
while the second is perhaps less polemic, it and its consequences are just as
severe.
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
e were the project evaluated logically later?
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
the binding for the object in the
statement pattern.
ok?
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
good morning;
> On 2016-04-18, at 11:08, Andy Seaborne <mailto:a...@apache.org>> wrote:
>
> On 17/04/16 19:59, james anderson wrote:
>> good evening;
>>
>>> On 2016-04-17, at 19:13, Andy Seaborne >> <mailto:a...@apache.org>> wrote:
>>
n operator function defined by either XQuery 1.0
> and XPath 2.0 Functions and Operators [FUNCOP] or the SPARQL operators
> specified in section 17.4.
> ]]
where, again, is the definition in 17.4.1.7 intended to fit into that table?
>
>
>
> On 17/04/16 17:53, james anderso
sed - it would return false in that case.
this is still confusing.
sorry, but it is.
>
> Andy
>
> On 16/04/16 11:38, james anderson wrote:
>>
>>> On 2016-04-16, at 11:55, Andy Seaborne wrote:
>>>
>>> On 16/04/16 07:23, Michael Schmidt wrote:
>>>&
uct the monolithic open-world
tests into individual tests, each of which demonstrates a significant
combination - or, given the combinatorics, some region of the table.
is there any interest in this?
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
rofile parameter
and service description property.
>
> I have raised JENA-1126 for Jena and proposed a change to pick a defined
> value.
>
> Thanks
> Andy
>
>> In any case it would be cool if there was a small example (like the one
>> above) that clarifies the behaviour.
>>
>> Jörn
>
>
> [JENA-1126]
> https://issues.apache.org/jira/browse/JENA-1126
>
>
---
james anderson | ja...@dydra.com | http://dydra.com
be surprising.
once one realizes that { } is not the same as ( ), what is the “surprise” which
remains?
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
s ?citedPaper.
> }
> }
> WHERE { ?paper ex:isJournalAndCites* ?influentialPaper }
>
> This is just to say that I don't think CONSTRUCT subqueries in FROM/FROM
> NAMED can be considered completely "subsumed" by the subquery forms available
> in SPARQL 1.1.
&g
RE { { SELECT ?P1 ?P2
WHERE { GRAPH <http://.../biblio.rdf>
{ ?Pub :author ?A1 .
?Pub :author ?A2 .
FILTER ( !(?A1 = ?A2) ) } } }
?P1 :mail ?M1 .
?P2 :mail ?M2 }
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
good evening;
> On 2015-12-05, at 21:30, Tara Athan wrote:
>
> […]
>
>
> On 12/5/15 12:38 PM, james anderson wrote:
>> good evening;
>>
>>> On 2015-12-05, at 14:29, Tara Athan
>>> <mailto:taraat...@gmail.com> wrote:
>>>
&g
blank nodes in quad data templates
>> in the graph position.
>>
>> It's in the SPARQL errata.
>>
>> http://www.w3.org/2013/sparql-errata
>>
>> (because I have just added it :-)
>>
>>>
>>> Tara
>>
>> ARQ supports blank node addressing for when you must.
>> IRI(blank node) returns a suitable IRI.
>>
>> Andy
>>
>>
>>
>
>
---
james anderson | ja...@dydra.com | http://dydra.com
lutions to all posses the same dimensions (the solution
mapping “domain”).
best regards, from berlin,
—
(1) http://www.w3.org/TR/2013/REC-sparql11-query-20130321/#sparqlSolutions
<http://www.w3.org/TR/2013/REC-sparql11-query-20130321/#sparqlSolutions>
---
james anderson | ja...@dydra.com | http://dydra.com
t, if
they appear as graph identifiers in your dataset, for graphs which satisfy the
metadata constraint in your example query, they will be bound to ?name and be
present in the solutions which are projected through the construct template.
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
from the insert syntax.
so far, "TriG-with-variables" does not convince that it would be worth the
effort.
specify the service description feature and you have something to target.
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
good evening;
> On 2015-11-29, at 16:04, Andy Seaborne wrote:
>
> On 29/11/15 11:33, james anderson wrote:
>> good morning;
>>
>>> On 2015-11-29, at 11:33, Andy Seaborne wrote:
>>> […]
>>>
>>>>
>>>> Is there any the
d a production of
the form
( 'GRAPH’ )? VarOrIri '{' TriplesTemplate? ‘}’
- which end does the elision serve?
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
similar situations apply to the sub-select and service cases.
whether the projection is ‘*’ or limited does not affect whether a binding
introduces a scope.
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
der to
recognize that the " .. RDF payload ..” was to be understood in the context of
the respective content media type.
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
ype)
8 (join
9 (extend ((?type (uri (concat ?typeBase "Person"
10 (table unit))
11 (bgp (triple ?s ?p ?o
12 (filter (= ?o ?type)
13 (join
14 (extend ((?type (uri (concat ?typeBase "Animal"
15 (table unit))
16 (bgp (triple ?s ?p ?o
> Also here I’d expect the empty result.
as would appear correct from the algebra expression.
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
space.
>
> In any case, I'll report this problem to both, according to Postel's law [5],
> but I'm curious about how other interpret this problem, and the general
> consensus if there is one...
>
>
> [1] http://www.w3.org/TR/rdf-sparql-XMLres/
> [2] http://ww
scalarvals) now in X
>> # note scalarvals may be omitted, then it's equivalent to the empty set
>> A
>> i
>> := Aggregation(args, R, scalarvals, G)
>> Replace R(...) with agg
>> i
>> in Q
>> i := i + 1
>> End
>> End
>>
>>
>
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
o
> return a list of phones (Bob's phone and John's phone) and I can not use
> FILTER.
you describe, that you would like to specify the sub-graph in which a given
subject set is connected to the respective object terms through given
predicates.
in what sense is t
nterpretation for the simple variable reference introduces a
unwarranted asymmetry in the way sample expressions are to be interpreted.
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
undef)
(<http://example.org/s6> undef <http://example.org/o2> 1)
(<http://example.org/s7> <http://example.org/p6> <http://example.org/o3> 1)
(<http://example.org/s8> undef <http://example.org/o3> 1)
}
} group by ?o
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
y
extensions.
as this version three, in turn, references xsd 1.1, that appears to be the
semantics to look for going forward and we decided to adopt that for our
temporal extension implementation.
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
identical
with arq’s, that implementation has been invaluable in filling in for the
recommendation.
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
understand, appeared with ARQ’s algebra
notation (http://www.w3.org/2011/09/SparqlAlgebra/ARQalgebra) - or, in any
case, that is where i recall first having seen it.
best regards, from berlin
---
james anderson | ja...@dydra.com | http://dydra.com
.
best regards, from berlin,
———
[1] : http://www.w3.org/TR/xpath20/
[2] : http://www.w3.org/TR/xpath20/
[3] : http://www.w3.org/TR/xquery-operators/#numeric-functions
[4] : http://www.w3.org/TR/xpath-functions-30/#op.numeric
---
james anderson | ja...@dydra.com | http://dydra.com
)” might indicate, but because the operator is
defined to be non-deterministic.
>
> On 8 Jul 2014, at 11:17, james anderson wrote:
>
>> good afternoon,
>>
>> On 8 Jul 2014, at 11:56, Steve Harris wrote:
>>
>>> I suspect that’s less surprising than
t;> { BIND(2 as ?a) BIND(2 as ?b)}
>> }
>>
>>
>> I think the principal of least surprise would suggest that a single select
>> should use the same solution to pick out the sample values, giving either
>> 1,1 or 2,2 as possible solutions here.
>>
>> Jeremy
>>
>>
>>
>
>
>
---
james anderson | ja...@dydra.com | http://dydra.com
remain ones expectation in this case as well?
SELECT (SAMPLE(?a) as ?A) (SAMPLE(?b) as ?B)
{
{ BIND(1 as ?a) }
UNION
{ BIND(2 as ?b)}
UNION
{ BIND(3 as ?b)}
}
>
> Jeremy
>
>
> On Jul 7, 2014, at 3:49 PM, james anderson wrote:
>
>> good morning;
>>
>&g
ons here.
what would be the consequence of a solution in which one of the variables was
not bound?
>
> Jeremy
>
>
>
---
james anderson | ja...@dydra.com | http://dydra.com
rom an improper query or simply return the empty set? (Obviously, under
> some engine implementations it makes no difference.)
>
> Regards,
>
> Thomas Visel
>
>
>
> Thomas A. Visel, Senior Translation Engineer
> Office: 512-651-5834
> Email: tviselalgebraixdata.com
> www.algebraixdata.com
>
---
james anderson | ja...@dydra.com | http://dydra.com
good afternoon;
On 21 Aug 2013, at 11:29 AM, Steve Harris wrote:
> On 20 Aug 2013, at 23:42, Rob Vesse wrote:
>
>> I have some comments around the definitions of CONCAT and COALESCE that have
>> originated from private discussions with a user and may lead to additional
>> errata for the SPARQ
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