Slots as slot values

[Arno Hartholt]

Hi all,

Is there a reason why one can only select classes and instances as slot
values and not other slots?

Thanks,

Arno
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[Thomas Russ]

On Jun 7, 2006, at 11:28 AM, Arno Hartholt wrote:

>
> Hi all,
>
> Is there a reason why one can only select classes and instances as  
> slot
> values and not other slots?

Do you mean

a) You want to have a slot object itself be the value of some slot

or

b) You want slot A to have the same fillers as slot B and enforce  
this as a constraint


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[Arno Hartholt]

> > Hi all,
> >
> > Is there a reason why one can only select classes and instances as
> > slot
> > values and not other slots?
>
> Do you mean
>
> a) You want to have a slot object itself be the value of some slot

That is what I mean, yes. So I want the value of a slot to be some other
slot.

Example: we have a class Person and a class Age with a slot Age-value of
type integer. Now I want to define partial world states. In this case, I
want a definition of the state age-of-person. This definition would
consist of three slots:

Object: instance of Person
Attribute: class Age
Value: slot Age-value

At this point I'm only interested in the general definition; i.e., I
don't care that John Smith is 35, I only care what information makes up
a age-of-person state.

The line 'value: slot Age-value' is not possible in Protege, though, and
I'm wondering if there's any specific reason why it is not allowed.

Arno
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[samsontu]

A slot is an instance of :STANDARD-SLOT. Make your "Value" slot to be
instance-valued, with allowed class :STANDARD-SLOT. Then slot
"Age-value" can be the value of a slot.

Samson

Arno Hartholt wrote:

>>>Hi all,
>>>
>>>Is there a reason why one can only select classes and instances as
>>>slot
>>>values and not other slots?
>>
>>Do you mean
>>
>>a) You want to have a slot object itself be the value of some slot
>
>
> That is what I mean, yes. So I want the value of a slot to be some other
> slot.
>
> Example: we have a class Person and a class Age with a slot Age-value of
> type integer. Now I want to define partial world states. In this case, I
> want a definition of the state age-of-person. This definition would
> consist of three slots:
>
> Object: instance of Person
> Attribute: class Age
> Value: slot Age-value
>
> At this point I'm only interested in the general definition; i.e., I
> don't care that John Smith is 35, I only care what information makes up
> a age-of-person state.
>
> The line 'value: slot Age-value' is not possible in Protege, though, and
> I'm wondering if there's any specific reason why it is not allowed.
>
> Arno
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> To unsubscribe go to http://protege.stanford.edu/community/subscribe.html
>
>

--
Samson Tu                    email: [hidden email]
Senior Research Scientist    web: www.stanford.edu/~swt/
Stanford Medical Informatics phone: [phone]
Stanford University          fax: [phone]

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[Arno Hartholt]

Ah, that's making me very happy :)

Thanks!

Arno

> -----Original Message-----
> From: [hidden email] [mailto:protege-
> [hidden email]] On Behalf Of Samson Tu
> Sent: Wednesday, June 07, 2006 7:32 PM
> To: [hidden email]
> Subject: [protege-discussion] Re: Slots as slot values
>
>
>
> A slot is an instance of :STANDARD-SLOT. Make your "Value" slot to be
> instance-valued, with allowed class :STANDARD-SLOT. Then slot
> "Age-value" can be the value of a slot.
>
> Samson
>
> Arno Hartholt wrote:
> >>>Hi all,
> >>>
> >>>Is there a reason why one can only select classes and instances as
> >>>slot
> >>>values and not other slots?
> >>
> >>Do you mean
> >>
> >>a) You want to have a slot object itself be the value of some slot
> >
> >
> > That is what I mean, yes. So I want the value of a slot to be some

other
> > slot.
> >
> > Example: we have a class Person and a class Age with a slot
Age-value of
> > type integer. Now I want to define partial world states. In this
case, I
> > want a definition of the state age-of-person. This definition would
> > consist of three slots:
> >
> > Object: instance of Person
> > Attribute: class Age
> > Value: slot Age-value
> >
> > At this point I'm only interested in the general definition; i.e., I
> > don't care that John Smith is 35, I only care what information makes
up
> > a age-of-person state.
> >
> > The line 'value: slot Age-value' is not possible in Protege, though,
and
> > I'm wondering if there's any specific reason why it is not allowed.
> >
> > Arno
> >
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> > To unsubscribe go to
> http://protege.stanford.edu/community/subscribe.html
> >
> >
>
>
> --
> Samson Tu                    email: [hidden email]
> Senior Research Scientist    web: www.stanford.edu/~swt/
> Stanford Medical Informatics phone: [phone]
> Stanford University          fax: [phone]
>
>

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