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Re: How to connect one individual to multiple classes

From: Xu, Ningfeng <nfxu@yahoo.com>
Date: Wed, 13 May 2009 11:33:11 -0700 (PDT)
Message-ID: <309693.81283.qm@web52010.mail.re2.yahoo.com>
To: Uli Sattler <sattler@cs.man.ac.uk>
Cc: public-owl-dev@w3.org

Uli, thanks for your reply.

Originally, carrying the Object Oriented Analysis spirit, and being new to semantic world, I started with:

1 Let the business be instance of an owl:Class Business;
2 The categories are classes, so it is easy to make a hierarchy and all siblings disjointed with each other;
3 Class Business has one object property, hasSite, which has the category as the value. In case of multiple categories, one business instance has multiple hasSite properties.

While, obviously, this ontology is OWL Full, since hasSite has owl:Class as its value.

I haven't tried to convert categories from owl:Class to instance so hasSite is good for OWL DL. But how much can reasoner get out from property value? For example:

business1 hasSite Orchard
business2 hasSite AgriculturalField

If we want to list all businesses which is under AgriculturalField, can business1 and business2 both be returned? I don't know...


Ningfeng


--- On Wed, 5/13/09, Uli Sattler <sattler@cs.man.ac.uk> wrote:

> From: Uli Sattler <sattler@cs.man.ac.uk>
> Subject: Re: How to connect one individual to multiple classes
> To: "Xu, Ningfeng" <nfxu@yahoo.com>
> Date: Wednesday, May 13, 2009, 11:01 PM
> Hi Xu, I can't see where the problem
> is: you can say that an individual is a member of more than
> one class...
> 
> Conceptually, you might want to *relate* them: instead of
> saying "this business *is a* restaurant and a water park,
> you might want to say that, among the things/services it
> *offers*, there is a restaurant and a water park.
> 
> 
> Cheers, Uli
> 
> On 13 May 2009, at 13:09, Xu, Ningfeng wrote:
> 
> > Hi,
> > 
> > Recently I am trying to build an OWL model for
> touring/entertainment related businesses. I have categorized
> these businesses into one category hierarchy like the
> following:
> > 
> > Site(Root)
> > +---WaterPark
> > +---Resort
> > .......
> > +---AgriculturalField
> >    +---Orchard
> > +---CollectionExhibition
> >    +---ExhibitionHall
> >    +---Memorial
> >    +---Museum
> > +---SportsField
> >    +---Playground
> >    +---Stadium
> > .......
> > 
> > The goal is, given any category in the hierarchy, we
> can return all related businesses back. For example, given
> "Museum" as the category, we are supposed to return all
> museums; given "CollectionExhibition", all museums,
> memorials and exbitionHalls are returned.
> > 
> > One thing is one business might have more than one
> services to offer. Here is an example: a resort has hotels,
> bars and some other regular facilities, it also has one
> indoor water park because of its hot spring water resource..
> So this resort should be categorized into 2 different
> categories: "Resort" and "WaterPark". Given either "Resort"
> or "WaterPark" is chosen as the category, this resort should
> be returned as a match.
> > 
> > The another one is that one business may fall into
> non-leaf categories, like "AgriculturalField" instead of
> "Orchard".
> > 
> > Technically I would prefer:
> > 
> > 1 Businesses are individuals of an owl:Class.
> Categories could be antything, if it supports reasoning.
> This is different from the Protege Pizza sample, while pizza
> are classes.
> > 
> > 2 When adding new businesses, we only need to add new
> business individual(maybe we need to add more categories),
> and connect the new individuals to the categories.
> > 
> > I have been trying different ways, but still no
> success.
> > 
> > Any help would be highly appreciated.
> > 
> > Ningfeng
> > 
> > 


      
Received on Wednesday, 13 May 2009 18:33:51 GMT

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