[Pellet-users] pellet + swrl == low performance??

[Sergio Berná Niñerola]

Hello,

I have the same problem with adding a SWRL rule to an existing ontology with
over 60 individuals. The expressivity of the ontology is SHIF, and the rule
has 3 variables.

After some debugging I have narrowed the problem to the RuleStrategy
implementation. The main problem is that for 60 individuals and 3 variables
(that neither of them satisfy the type restriction expressed in the rules),
pellet generates all the  possible combinations of individuals and checks
the rule with all of them resulting in an OutOfMemoryError.

Is this the default rule strategy or can it be caused by a bad rule or
ontology specification?

Thanks in advance,

Sergio Berná

On Fri, Jun 20, 2008 at 12:39 PM, izan <quetecallesolatz at yahoo.es> wrote:

>  Hi there,
> I'm a newbie working with Pellet and I'm having some issues. I use it from
> Eclipse via the OWL-API. I've got this program which dinamically creates
> some individuals (around 15) in my ontology. It takes about 8 seconds to run
> the program. However, if I add a single SWRL rule (which has nothing to do
> with those individuals and therefore is not fired) it takes more than a
> minute :(.
> Any suggestion? (I need to add about 12 rules)
> Thanks in advance,
> Idoia
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