[DL] Use of Semantic web reasoner in ontology based Question Answering

Cristiano Longo longo at dmi.unict.it
Sat Aug 17 16:12:40 CEST 2013

Dear Olivier, in general inferred statements are regarded as "native" 
ones, so that they partecipate in the executions of the query. I 
personally used just pellet as reasoning engine, and ARQ to provide the 
sparql endpoint. However, you may use a faster reasoner if the 
constructs in your ontology falls in some specific fragments (see EL++ 
for example).

Hope it helps,
Cristiano Longo

On 14/08/2013 00:53, Olivier Austina wrote:
> Hi All,
> I would like to have a feedback about using a semantic web reasoner 
> over OWL ontology of Question Answering System. The system use SPARQL 
> as query language. Initially the reasoner is not supposed to be used. 
> But it seems to  enhance the system.
> How to put them together and which free reasoner is recommended? Thanks.
> Regards
> Olivier
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