Thank you, Dave. Is there any way to incorporate Pellet into Jena library as an external reasoner? Thank you so much. Regards, Neli.
Neli P. Zlatareva, PhD Professor of Computer Science Department of Computer Science Central Connecticut State University New Britain, CT 06050 Phone: (860) 832-2723 Fax: (860) 832-2712 Web site: cs.ccsu.edu/~neli/ ________________________________ From: Dave Reynolds <[email protected]> Sent: Thursday, October 3, 2019 3:47 AM To: [email protected] <[email protected]> Subject: Re: Jena OWL Reasoner question Please be cautious: **External Email** There's not a lot details there to go on. As a general principle Pellet is a complete DL reasoner whereas the jena OWL rules are much more limited. If you want complete and performant DL inference then use a proper DL reasoner. In simple cases the jena rules can give useful results in reasonable time and they serve a useful purpose in many settings. However, for hard cases they can easily fall into exponential behaviour. Even just equality reasoning can be problematic. Ontology size it not itself an indication of reasoning complexity. Dave On 02/10/2019 13:37, Zlatareva, Neli (Computer Science) wrote: > Hi, I am trying to run a very small ontology with Jena OWLReasoner using Jena > libraries in Eclipse and it runs forever. The memory was initially an issue, > but after I added extra 16GB of RAM, it was still working after 24 hours. > This is an ontology that runs in under a second with Pellet. Any idea why is > that? I will really appreciate any suggestions. > Thank you SO MUCH. > Regards, Neli. > > Neli P. Zlatareva, PhD > Professor of Computer Science > Department of Computer Science > Central Connecticut State University > New Britain, CT 06050 > Phone: (860) 832-2723 > Fax: (860) 832-2712 > Web site: cs.ccsu.edu/~neli/ >
