Hello, I've been moving from OWLIM Lite 4.3 to OWLIM-SE 4.3 lately, and started to play with the wordNet ontology. I am doing those first trials on my desktop computer, Windows 7, 8GB Ram, 3GB allowed to TomCat, hoping this small configuration is ok for tests. About repository configuration: When doing some pretty heavy SPARQL queries on an ontology as WordNet, with ?p variable for properties which could be any of the wordnet property, is the "Use predicate indices" of any help ? The documentation says "One should consider using this index for datasets that contain a very large number (~1000) different predicates." WordNet has less than 100 predicates. If it does not help, could it make things worse ? About the rule-set: I first created the repository with no rule-set. I did load WordNet with, of course, no inference. Than, using SPARQL Update I changed the repository rule-set to "owl-horst-optimized". As expected, nothing happened as the inferences are carried out at load time. Then I did reload all the files but couldn't find any inferred triple. I had to delete/recreate the repository with the rule-set from start, and then the inferences where done. Any idea if I might have done something wrong or if there is something to be careful about ? About inferred triples: If I remember well, OWLIM 3.5 had an 'implicit' context where I could find all inferred triples. Is it correct that this no more exists with vers 4.3 ? (I saw in the user guide how to query the explicit/implicit triples, it is just a question for understanding). Then I have a question about what happens on disk: I had my repository loaded with WordNet T-Box + A-Box. Then I changed the ontology with Protégé, adding a new property as sub-property of all the wordNet properties. Then, to update my T-Box, I did simply load the new file in the same context, without first removing the old one. Is it the correct way to do it ? My size on disk did of course increase. My Triples count did rise from about 5Mio to 6Mio. Then I removed the T-Box, which took 2 hours on my desktop computer (I guess it is something to expect), and the triples drop from 6Mio to 2Mio (no more inference). But what is unexpected here, is that the I would think the hard drive storage folder would also come back to the original size without inference, but on the contrary, it did still increase a little. So a repository with no inference was about 150 MB. With inferences it is around 600MB. And after doing those manipulations and removing the inferences it was arounnd 900MB (but I was expecting around 150MB). At first glance, I think "pso" and "pos" where much bigger than the "clean" ones. Thank you once again for any help Fabian
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