I consider that I did not know how to explain correctly in my previous email, I repeat the two questions:
1) I read the page https://jena.apache.org/documentation/tdb/assembler.html, I do not think it is what I need. I work with large OWL2 ontologies from the OWLAPI framework, generated automatically. With thousands of individuals and more than 13 million property assertions (data and objects). As one may assume, one of the limitations I have is that OWLAPI itself can not manage these large ontologies, that is, because OWLAPI loads the whole owl file into RAM. Not to dream that some classical reasoner (Pellet, Hermit, etc.) can infer new knowledge about these great ontologies. Once explained the problem I have, comes the question: Does JENA solve this test ?, ie with JENA and TDB I can generate my great ontologies in OWL2 ?, With JENA and TDB I can use a reasoner to infer new implicit knowledge (unstated) on my big ontologies? I do not think JENA will be able to solve this problem, it would be a pleasant surprise for me. Unfortunately so far I had not read about TDB and the potentialities of JENA in external memory. Best Regards, Manuel Puebla. ----- Mensaje original ----- De: "Lorenz B." <[email protected]> Para: [email protected] Enviados: Domingo, 19 de Marzo 2017 3:52:30 Asunto: [MASSMAIL]Re: about TDB JENA > Is it possible to use some reasoner with RDF data, managed from TDB? Yes, see [1] > > Is it possible to manage an ontology in OWL2 from TDB? What means "manage"? In general you can load and query any RDF data into TDB. The serialization of an OWL ontology can be any RDF format. Obviously, querying OWL constructs via SPARQL can become weird because an OWL axiom/class expression can consists of more than one RDF triple. [1] https://jena.apache.org/documentation/tdb/assembler.html -- Lorenz Bühmann AKSW group, University of Leipzig Group: http://aksw.org - semantic web research center La @universidad_uci es Fidel. Los jóvenes no fallaremos. #HastaSiempreComandante #HastalaVictoriaSiempre
