This does not seem to be a strong argument and seems only to reflect your
opiniion

Authority does not have to rely on administrators enforcing whatever, it
can come from agreement around common sense principle, can't it ? This case
is far more deeply rooted than GND and does not limit us in any way. It's
just a case of best practices.

You also have to account for which work this would be a problem, so we
could try to find a solution, for this to be not just rhetorics.

2016-08-14 18:02 GMT+02:00 Gerard Meijssen <[email protected]>:

> Hoi.,
> Wikidata has a real bad way of considering both arguments and authority.
> Arguments are not considered and authority leads to a cavalier way of
> interpreting responsibility. It has been obvious that administrators as a
> whole do not ensure that Wikidata policies are maintained.
>
> So authority as an argument stinks. The point of tools and representation
> of data in tools is that they make things obvious. That is a bigger help
> than calling for even more talk (most talk is just opinions with no
> reflection on previous arguments)
>
> Your notion that we can easily rollback our mistakes shows a disregard for
> the work people have done. It also shows little historic awareness. At some
> stage we "followed" for all the wrong reasons the GND. It took us a long
> time to undo all this. Really, the point of Wikidata is that our work
> supports Wikimedia projects that is primary and the rest is nice to have.
> Thanks,
>        GerardM
>
> On 14 August 2016 at 17:39, Thomas Douillard <[email protected]>
> wrote:
>
>> People may build representation in their mind, but first there is no
>> guarantee that they all have the same representations which will lead to
>> endless conflicts on incompatibilities. But mostly : there already is a
>> reference interpretation.
>>
>> This is not high level, this is very very low level and has an impact
>> everywhere on Wikidata, basically. This should not be conflictual as we
>> have a reference interpretation, a Markus and a Denny who should be
>> authoritative on the question, and we can explain and point to pointers
>> such as this thread. This is just the time to highlight this as community
>> begins to ask itself about such questions - this might not be the case
>> earlier as community used less the data and was not really seriously
>> considering all this.
>>
>> This is probably not to late either, as if wikidata is beginning to be
>> used we can probably roll back without to much trouble. Consider the
>> problems we could face if german do not share the same interpretation as
>> french and as a result the infoboxes displays wrong datas ... We need such
>> agreement, and we have strong arguments to show people the right path.
>>
>> 2016-08-14 17:25 GMT+02:00 Gerard Meijssen <[email protected]>:
>>
>>> Hoi,
>>> It is even more base. It is about the understanding of the data. When
>>> people are to understand the data and have no help, they will build
>>> constructs in their mind and not consider at all any high level conceptual
>>> considerations.
>>>
>>> I do not care too much about the "conceptual heritage of the Wikidata
>>> creators", they stand on the shoulders of giants as well. What I care about
>>> is the purpose of Wikidata. What it is there for and I repeat myself when I
>>> state that interoperability is secondary. The primary purpose of Wikidata
>>> is realised when said interoperability has an effect on the data in a
>>> qualitative way. So far it is far removed from the content in Wikidata
>>> itself and consequently the point has not been shown except abstractly.
>>>
>>> So far we have been on a path where the work developed elsewhere was
>>> considered to be of a lesser value. It is why the Freebase import is a
>>> fiasco.
>>> Thanks,
>>>        GerardM
>>>
>>> On 14 August 2016 at 17:01, Thomas Douillard <[email protected]
>>> > wrote:
>>>
>>>> More seriously maybe :
>>>>
>>>> I guess you mention tool because you argue that the correct
>>>> interpretation of datas is given by the tools and humans. I think it's
>>>> totally wrong in this case. First because it's a (very small) minimal set
>>>> of requirements that Wikibase (not Wikidata) was built on, and those set is
>>>> present since the very first conceptual data model of Wikidata. It's always
>>>> been public and present in the conceptual description and determined the
>>>> help pages if you bother read them. It's the framework that guided our
>>>> decisions more or less explicitely, and this is relatively well understood
>>>> from our core community. It just need to be spread on to the more distant
>>>> Wikimedia user circles that are less into Wikidata. This should not be a
>>>> problem. Things are very different with properties which community is able
>>>> to create, delete and use as it wishes.
>>>>
>>>> Another POV on this : this is one of Wikidata's pillars. The conceptual
>>>> heritage of WIkidata creators.
>>>>
>>>> 2016-08-14 15:14 GMT+02:00 Gerard Meijssen <[email protected]>:
>>>>
>>>>> Hoi,
>>>>> Markus it is very much a matter of perspective and we do not all see
>>>>> things in the same way. For me the re-usability of Wikidata is very much
>>>>> secondary. Important but secondary. The primary goal of Wikidata is to
>>>>> provide a data storage for Wikimedia projects. The problem that I see is
>>>>> that much effort has gone in secondary goals largely at the cost of the
>>>>> primary perspective.
>>>>>
>>>>> For an editor of Wikidata Wikidata is hardly usable. It is very much
>>>>> because of tools like Reasonator that I can understand the data that is in
>>>>> Wikidata. It is also for this reason that "deprecation" will evolve away
>>>>> from you. It is wonderful that all these high level approaches exist but
>>>>> the problem is that it does not consider the effects on people editing
>>>>> Wikidata. SPARQL is now good enough to replace WDQ but the problem is that
>>>>> the tools build upon WDQ are not converted and SPARQL does not bring the
>>>>> easy use that I and others are accustomed to. There is no replacement for
>>>>> much of the functionality.
>>>>>
>>>>> We do agree that the architecture of Wikidata has to be stable but so
>>>>> does its tooling and this is where we fail and consequently see a
>>>>> divergence. In the past I asked you for tools and I supported additional
>>>>> funding on the promise of support for tooling. So far I have noticed that
>>>>> the quality of the engine has improved but I have not seen improvements in
>>>>> or the tooling that makes use of the SPARQL engine.
>>>>>
>>>>> For me all the attention to top level concerns have been at the cost
>>>>> of supporting people who actually enter the data. I do not see a strategy
>>>>> to converge Wikidata and Wikipedia editing and I have made the argument 
>>>>> why
>>>>> this is vital for our quality repeatedly.
>>>>>
>>>>> So as you want to preserve top level integrity do consider tooling and
>>>>> do consider what it is we aim for.
>>>>> Thanks,
>>>>>        GerardM
>>>>>
>>>>> On 14 August 2016 at 14:26, Markus Kroetzsch <
>>>>> [email protected]> wrote:
>>>>>
>>>>>> On 12.08.2016 17:24, Jean-Luc Léger wrote:
>>>>>>
>>>>>>> On 2016-08-11 22:29, Markus Kroetzsch wrote:
>>>>>>>
>>>>>>>     On 11.08.2016 18:45, Andra Waagmeester wrote:
>>>>>>>
>>>>>>>         On Thu, Aug 11, 2016 at 4:15 PM, Markus Kroetzsch
>>>>>>>         <[email protected]
>>>>>>>         <mailto:[email protected]>
>>>>>>>         <mailto:[email protected]
>>>>>>>
>>>>>>>         <mailto:[email protected]>>>
>>>>>>>         wrote:
>>>>>>>
>>>>>>>
>>>>>>>             has a statement "population: 20,086 (point in time:
>>>>>>> 2011)"
>>>>>>>         that is
>>>>>>>             confirmed by a reference. Nevertheless, the statement is
>>>>>>>         marked as
>>>>>>>             "deprecated". This would mean that the statement "the
>>>>>>>         popluation was
>>>>>>>             20,086 in 2011" is wrong. As far as I can tell, this is
>>>>>>> not
>>>>>>>         the case.
>>>>>>>
>>>>>>>
>>>>>>>         I wouldn't say that with a deprecated rank, that statement is
>>>>>>>         "wrong". I
>>>>>>>         consider de term deprecated to indicate that a given
>>>>>>> statement is no
>>>>>>>         longer valid in the context of a given resource (reference).
>>>>>>> I
>>>>>>>         agree, in
>>>>>>>         this specific case the use of the deprecated rank is wrong,
>>>>>>> since no
>>>>>>>         references are given to that specific statement.
>>>>>>>         Nevertheless, I think it is possible to have disagreeing
>>>>>>>         resources on an
>>>>>>>         identical statement, where two identical statements exists,
>>>>>>> one with
>>>>>>>         rank "deprecated" and one with rank "normal". It is up to the
>>>>>>>         user to
>>>>>>>         decide which source s/he trusts.
>>>>>>>
>>>>>>>
>>>>>>>     The status "deprecated" is part of the claim of the statement.
>>>>>>> The
>>>>>>>     reference is supposed to support this claim, which in this case
>>>>>>> is
>>>>>>>     also the claim that it is deprecated. The status is not meant to
>>>>>>>     deprecate a reference (not saying that this is never useful,
>>>>>>>     potentially, but you can only use it in one way, and it seems
>>>>>>> much
>>>>>>>     more practical if deprecated statements get references that
>>>>>>> explain
>>>>>>>     why they are deprecated).
>>>>>>>
>>>>>>>
>>>>>>> Yes. I think a complete deprecated statement should look like this :
>>>>>>>
>>>>>>> Rank: Deprecated
>>>>>>> Value: <some value>
>>>>>>> Qualifier: P2241:reason for deprecation + <some reason>
>>>>>>>
>>>>>>> References
>>>>>>> * P248:Stated in (or any other property for a reference)   --> a
>>>>>>> reference where the value is true (explaining why we added it)
>>>>>>>   Value: <name of the reference>
>>>>>>>   + any additional qualifiers
>>>>>>> * P1310:statement disputed by                              --> a
>>>>>>> reference explaining why the claim is deprecated
>>>>>>>   Value: <name of the reference>
>>>>>>>   + any additional qualifiers
>>>>>>>
>>>>>>
>>>>>> I am afraid that this is not a good approach, and it will lead to
>>>>>> problems in the future. The status "deprecated" refers to the *complete
>>>>>> claim, including all qualifiers*. So if you add a qualifier P2241, it 
>>>>>> would
>>>>>> also be part of what is "deprecated", which is clearly not intended here.
>>>>>> This is part of the general data structure in Wikidata, and tools using 
>>>>>> the
>>>>>> data would expect this to hold true. Ranks are a built-in feature of the
>>>>>> software, so this aspect is not really open to interpretation.
>>>>>>
>>>>>> What you are doing here is giving up part of the pre-defined
>>>>>> structure and replacing it by some local (site-specific) consensus. I 
>>>>>> know
>>>>>> that this might be a bit subtle and not so easy to see at first, but it 
>>>>>> is
>>>>>> a big step away from structured data that is easy to share across
>>>>>> applications.
>>>>>>
>>>>>> For example, imagine an application wants to compare "normal"
>>>>>> statements with "deprecated" statements to see if there is any apparent
>>>>>> contradiction (the same statement being given with both ranks). This 
>>>>>> would
>>>>>> no longer work if you add meta-information to deprecated statements in 
>>>>>> the
>>>>>> form of qualifiers. For a software tool, an additional quantifier simply
>>>>>> changes the meaning. Imagine that one statement has an additional "end
>>>>>> date" qualifier that the other one is lacking -- clearly, it would be
>>>>>> perfectly reasonable that the statement with the end date is deprecated
>>>>>> while the one that has only a start but no end is not. Technically, there
>>>>>> is no difference between this situation and the situation where you add a
>>>>>> new qualifier "P2241".
>>>>>>
>>>>>> Now you could say: "Software should know the special meaning of P2241
>>>>>> and treat it accordingly." But this is only working for one site 
>>>>>> (Wikidata
>>>>>> in this case). A future Wikibase-enabled Commons or Wiktionary would use
>>>>>> different properties. You end up with having to change software for each
>>>>>> site, and severely reducing interoperability across sites (imagine you 
>>>>>> want
>>>>>> to combine data from two sites before processing it).
>>>>>>
>>>>>> Even if you are only interested in a single site (Wikidata), you are
>>>>>> changing the way in which statements should be interpreted over time. If
>>>>>> the community uses qualifiers to change the data model like this, then 
>>>>>> the
>>>>>> current definition of these qualifiers dictates how statements should be
>>>>>> interpreted. Then if you want to analyse history, things can be very
>>>>>> difficult.
>>>>>>
>>>>>> What to do? It is quite simple: P2241 clearly belongs into the
>>>>>> reference of a deprecated statement, not into its qualifiers. This will
>>>>>> retain the same information while keeping the distinction between the 
>>>>>> claim
>>>>>> that is deprecated (and which may have qualifiers) and the meta-data that
>>>>>> explains why this is the case. Indeed, giving justification and 
>>>>>> explanation
>>>>>> for a statement is precisely what the references are for, so P2241 fits
>>>>>> there
>>>>>>
>>>>>>
>>>>>> I am not so sure if the rest of your modelling can work either, since
>>>>>> it seems to me that you cannot in general capture two references (the
>>>>>> original "P248" one and the correcting "P1310" one) in a single 
>>>>>> reference.
>>>>>> Giving them both as two individual references would be a bad idea, since 
>>>>>> it
>>>>>> would again change the meaning of the data, since you would give two
>>>>>> mutually contradicting references for the same claim, and site-specific
>>>>>> extra information would be needed to understand what is going on.
>>>>>>
>>>>>> In fact, this is another expectation that is implicit in the Wikidata
>>>>>> data model: if you have a claim C with two references A and B, then you
>>>>>> could as well have claim C twice, once with reference A and once with
>>>>>> reference B. References therefore should never have cross-dependencies or
>>>>>> play different roles.
>>>>>>
>>>>>> Maybe I misunderstood and you meant something else: you could of
>>>>>> course make a single reference and use a specific form (with only two
>>>>>> properties, P248 and P1310). But then you need to use single items for 
>>>>>> each
>>>>>> of the references. Many references on Wikidata are not expressed by 
>>>>>> single
>>>>>> items but by many property-value pairs (think of "reference URL + 
>>>>>> retrieved
>>>>>> + ..."). Such compound references would then not work in this encoding.
>>>>>>
>>>>>> What to do? In general, I think it is most important to give the
>>>>>> reference that explains the deprecation, not the (mistaken) one that 
>>>>>> claims
>>>>>> a wrong thing. This also makes sense for other reasons: if we create
>>>>>> statistics such as "80% of all Wikidata statements have references" then 
>>>>>> we
>>>>>> don't want to count deprecated statements where the only reference given
>>>>>> claims that the wrong thing is actually true. A "deprecated statement 
>>>>>> with
>>>>>> reference" should always be one where we have a reference that supports 
>>>>>> the
>>>>>> claim that the statement is not true (justifies why it is deprecated).
>>>>>> Again, you can see here how important it is to stick to certain 
>>>>>> boundaries
>>>>>> of interpretation when you want to process data with tools later on.
>>>>>>
>>>>>>
>>>>>> If my suggestions somehow don't work in practice, then the best way
>>>>>> would be to file a feature request for having additional meta-data for
>>>>>> deprecated statements. Since the ranks are built into the software, any
>>>>>> solution that really needs to change the meaning of the software needs to
>>>>>> be implemented in code. Then it would be the same approach on all future
>>>>>> Wikibase sites and software could work with it. However, I really hope 
>>>>>> that
>>>>>> the reference-based approach is acceptable to the Wikidata community in
>>>>>> practice.
>>>>>>
>>>>>> Best regards,
>>>>>>
>>>>>> Markus
>>>>>>
>>>>>>
>>>>>> _______________________________________________
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>>>>>>
>>>>>
>>>>>
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