[DL-Learner discussion] Cannot use Pellet reasoner in DL-Learner

[Tran C. An <tc...@gm...>]

Hi all,

I tried to use Pellet reasoner with DL-Learner but could not get success.
The original Pellet reasoner wrapper class lacks of the default 
constructor (constructor with no parameter).
I tried to add a default constructor and the reasoner can be initialised 
and it can load the ontology successfully.
However, a null pointer exception occurred when the hasTypeImpl() method 
is called
(e.g. by the learning problem component for the coverage/accuracy 
calculation).

Are there anyone can use this reasoner? I would appreciate for your help 
so much if you can help me
to make use of this reasoner in Dl-Learner.

I am trying to use this reasoner because the fast instance checker seems 
to be very slow when I tried to load
the ontology in the showering-duration example in DL-Learner repository. 
It took minutes to load this ontology
while the Pellet reasoner takes only several seconds (usually less than 
10s).

Thanks,
An.