To get all instances of a class such as Pizza, just run the inferences
button and look at the instances using the Instances view. For
arbitrary other class expressions, just create a named class that has
the class expression as its equivalent class and then repeat the
procedure above.
Otherwise, run SPARQL on top of your OWL DL inference engine and use
queries such as
SELECT * WHERE { ?instance a :Pizza }
to get all instances of Pizza.
Holger
On Dec 30, 2008, at 4:36 PM, Christoph wrote:
>
> Thanks a lot for your answer. I like to ask a follow-on question: In
> Protege, I can just input a classname in the DL Query field and get
> all instances or subclasses, for example. How can I do this in
> Topbraid? Do I have to use Sparql Syntax or can I also just input the
> name of a class, eg., just "Pizza" and run the query?
>
> THANKS, Christoph
>
> On 29 Dez., 17:56, Holger Knublauch <[email protected]> wrote:
>> To add to this: once you have configured to use an OWL DL inference
>> engine (such as Pellet or OWLIM), you can activate inferencing on the
>> SPARQL view with the "Use currently configured inferences" button. In
>> that case the SPARQL engine will run the inferences and thus see
>> "additional" triples.
>>
>> Holger
>>
>> On Dec 29, 2008, at 8:46 AM, Scott Henninger wrote:
>>
>>
>>
>>
>>
>>> Christoph; Inferencing in Composer is configurable. Go to
>>> Inference >
>>> Configure Inferencing... Click the box to Customize settings for
>>> the
>>> file (or project or workspace). Note that you can choose which
>>> inference engines can be used (there can be more than one) and in
>>> what
>>> order they are executed.
>>
>>> -- Scott
>>
>>> On Dec 29, 10:27 am, Christoph <[email protected]> wrote:
>>>> Hello, is there a dl query tab in topbraid as in protege to run dl
>>>> query and not only sparql ones?
>>
>>>> Thanks a lot, Christoph- Zitierten Text ausblenden -
>>
>> - Zitierten Text anzeigen -
> >
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