[Pellet-users] A lot of descendant queries

[Alan Ruttenberg]

On May 3, 2007, at 2:03 PM, bijan at clarkparsia.com wrote:
>  It's a little tricky since not every edge is necessarily  
> manifested in any way and we have the possibility of blocked edges  
> (disjoint classes, negated roles).

Thanks for pointing this out. I can see how negated roles would need  
to be considered. How would disjoint classes affect the calculation?
FWIW, in GO, I believe the sibling classes should be considered  
disjoint, even if it is not currently stated, and there are  
(currently) no negated roles.

I suppose I could code up the OWL 1.1 example using role chains and  
see how it performs. The only issue is that my programming  
environment isn't quite tooled up to author OWL 1.1 yet.

-Alan


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