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Re: Expensive links in Linked Data

From: Keith Alexander <k.j.w.alexander@gmail.com>
Date: Fri, 28 Sep 2012 16:32:31 +0100
Message-ID: <CAJrtwV62qLj3_To-G1A-jHdKO8+MwoCE9=KFCH=E84yZLKmUUA@mail.gmail.com>
To: Heiko Paulheim <paulheim@ke.tu-darmstadt.de>
Cc: SERVANT Francois-Paul <francois-paul.servant@renault.com>, "public-lod@w3.org" <public-lod@w3.org>
You can have multiple documents about the same thing. Each document
can contain a different (part of the whole) description, and can link
to the other related documents.

GET /someresource

<> foaf:primaryTopic <#thing> .
<#thing> foaf:isPrimaryTopicOf </expensiveDescription> , <> .

You can then provide more metadata about </expensiveDescription>. Perhaps:

</expensiveDescription> void:propertyPartition [ void:property
ex:expensiveProperty ] .

Or maybe Linked Data Basic Profile could be useful
http://www.w3.org/Submission/ldbp/ ?

yours,

Keith

On Fri, Sep 28, 2012 at 4:18 PM, Heiko Paulheim
<paulheim@ke.tu-darmstadt.de> wrote:
> OK, I see.
>
> Then a possible idea could be splitting the dataset into a cheap dataset and
> one (or more) expensive datasets, interlinked by sameAs links. If you
> include a VoID description [1] of all datasets with each of the datasets,
> you can inform the user about what properties to expect when following the
> links.
>
> Best,
> Heiko
>
> [1] http://www.w3.org/TR/void/
>
>
> Am 28.09.2012 16:54, schrieb SERVANT Francois-Paul:
>
>> Thanks,
>>
>> no, this doesn't solve the problem. A user gets ex:e0 (the "cheap"
>> resource). Though she can see that there is the link to the "expensive
>> resource", she doesn't know the meaning of the link (it is just an
>> owl:sameAs): she doesn't know what this is about. (Note also that there
>> could be several expensive properties)
>>
>> Best,
>>
>> fps
>>
>>
>>
>>> -----Message d'origine-----
>>> De : Heiko Paulheim [mailto:paulheim@ke.tu-darmstadt.de]
>>> Envoyé : vendredi 28 septembre 2012 16:42
>>> À : public-lod@w3.org; SERVANT Francois-Paul
>>> Objet : Re: Expensive links in Linked Data
>>>
>>> Hi Francois-Paul,
>>>
>>> how about that solution:
>>>
>>> You publish the "cheap" data about your entity under
>>> http://example.org/e0, which is the "official" URI of that entity:
>>> ex:e0 owl:sameAs ex:e0expensive
>>> ex:e0 :cheapProp ...
>>>
>>> And under http://example.org/ex:e0expensive, you publish
>>> ex:e0expensive owl:sameAs ex:e0 ex:e0expensive :expensiveProp ...
>>>
>>> So people following links in LOD will always land at a page
>>> without the expensive properties, and those who really want
>>> to know can follow the sameAs link.
>>>
>>> Does that solve your problem?
>>>
>>> Best,
>>> Heiko
>>>
>>>
>>>
>>> Am 28.09.2012 16:32, schrieb SERVANT Francois-Paul:
>>>>
>>>> Hi,
>>>>
>>>> How do you include links to results of computations in Linked Data?
>>>>
>>>> For instance, you publish data about entities of a given
>>>
>>> class. A property, let's call it :expensiveProp, has this
>>> class as domain, and you know that computing or publishing
>>> the corresponding triples is expensive. In such a case, you
>>> don't want to produce these triples each time one of your
>>> entities is accessed. You want to include in the
>>> representation of your entity only a link to that information.
>>>>
>>>> A no-brainer, at first sight.
>>>>
>>>> Are there any recommended ways to proceed?
>>>>
>>>> TIA
>>>>
>>>> fps
>>>> -- Disclaimer ------------------------------------
>>>> Ce message ainsi que les eventuelles pieces jointes
>>>
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>>>>
>>>> *** This e-mail and any attachments is a confidential
>>>
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>>>>
>>>>
>>> --
>>> Dr. Heiko Paulheim
>>> Knowledge Engineering Group
>>> Technische Universität Darmstadt
>>> Phone: +49 6151 16 6634
>>> Fax:   +49 6151 16 5482
>>> http://www.ke.tu-darmstadt.de/staff/heiko-paulheim
>>>
>>>
>> -- Disclaimer ------------------------------------
>> Ce message ainsi que les eventuelles pieces jointes constituent une
>> correspondance privee et confidentielle a l'attention exclusive du
>> destinataire designe ci-dessus. Si vous n'etes pas le destinataire du
>> present message ou une personne susceptible de pouvoir le lui delivrer, il
>> vous est signifie que toute divulgation, distribution ou copie de cette
>> transmission est strictement interdite. Si vous avez recu ce message par
>> erreur, nous vous remercions d'en informer l'expediteur par telephone ou de
>> lui retourner le present message, puis d'effacer immediatement ce message de
>> votre systeme.
>>
>> *** This e-mail and any attachments is a confidential correspondence
>> intended only for use of the individual or entity named above. If you are
>> not the intended recipient or the agent responsible for delivering the
>> message to the intended recipient, you are hereby notified that any
>> disclosure, distribution or copying of this communication is strictly
>> prohibited. If you have received this communication in error, please notify
>> the sender by phone or by replying this message, and then delete this
>> message from your system.
>>
>
> --
> Dr. Heiko Paulheim
> Knowledge Engineering Group
> Technische Universität Darmstadt
> Phone: +49 6151 16 6634
> Fax:   +49 6151 16 5482
> http://www.ke.tu-darmstadt.de/staff/heiko-paulheim
>
>
Received on Friday, 28 September 2012 15:33:02 UTC

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