inverse object properties

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Jdisc Sobrename

inverse object properties

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Hi,

I would like to know If I don´t use inverse properties (objectProperties), I will loose power when reasoning over ontologies?
Will it cause any expressivity problem prohibiting this kind of properties?



best regards,





João


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Timothy Redmond

Re: inverse object properties

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I think that this is the wrong way to ask the question.  The real  
question is "what do I want to say?"  If the thing that you are trying  
to express naturally involves inverse properties then you should use  
them.  As a bonus the reasoners will see and understand the inverse  
properties that you use.  If the thing that you are trying to say  
doesn't need inverse properties, then adding inverse properties to  
your ontology will be artificial and won't improve the result.  This  
is a generic answer that is independent of what owl construct you  
would be asking about.

I can think of one reason to reject the above answer.  If you have  
chosen some restricted owl profile for improved reasoning performance,  
you would constrain yourself to that profile even when using a more  
expressive language would be more natural.

-Timothy


On Nov 5, 2009, at 11:09 AM, Jdisc Sobrename wrote:

> Hi,
>
> I would like to know If I don´t use inverse properties  
> (objectProperties), I will loose power when reasoning over ontologies?
> Will it cause any expressivity problem prohibiting this kind of  
> properties?
>
>
>
> best regards,
>
>
>
>
>
> João
>
> Veja quais são os assuntos do momento no Yahoo! + Buscados: Top 10 -  
> Celebridades - Música -  
> Esportes_______________________________________________
> protege-owl mailing list
> [hidden email]
> https://mailman.stanford.edu/mailman/listinfo/protege-owl
>
> Instructions for unsubscribing: http://protege.stanford.edu/doc/faq.html#01a.03

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