owl

I am struggling to load most of the Drug Ontology OWL files and most of the ChEBI OWL files into GraphDB free v8.3 repository with Optimized OWL Horst reasoning on. is this possible? Should I do something other than "be patient?" Details: I'm using the loadrdf offline bulk loader to populate an AWS r4.16xlarge instance with 488.0 GiB and 64 vCPUs Over the weekend, I played around with different pool buffer sizes and found that most of these files individually load fastest with a pool buffer of 2,000 or 20,000 statements instead of the suggested 200,000. I also added -Xmx470g to the loadrdf

In OWL this query works fine "person and hasChild min 3" it works fine and it gives me all persons who have more than 3 children but this one does not work "person and hasChild max 3" it should give me all persons who have less than 3 children however it does not work does any one have an idea about this?? why "min" works while "max" does not give any results!?? Thanks The reason why the 2nd query "does not work" is Open World Assumption , and possibly also (the lack of) Unique Name Assumption . Say you state: John lives in Paris. Mary lives in Paris. The following questions are answered in

I have some data coming in from a RabbitMQ. The data is formatted as triples, so a message from the queue could look something like this: :Tom foaf:knows :Anna where : is the standard namespace of the ontology into which I want to import the data, but other prefixes from imports are also possible. The triples consist of subject, property/predicate and object and I know in each message which is which. On the receiving side, I have a Java program with an OWLOntology object that represents the ontology where the newly arriving triples should be stored temporarily for reasoning and other stuff. I

I have question based on the topic: SOF - Einstein puzzle in OWL In the owl, all cardinality restrictions are based on functional and inverse functional properties of Object Properties. I have remodeled it using QCRs. Old model (example): man drinks some beverage; drinks -> functional, inferse functional New model /EDITED/ : man drinks exactly 1 beverage; beverage drinkedBy exactly 1 man; drinks -> domain:man, range:beverage drinkedBy -> domain:beverage, range:man drinks inverseOf drinkedBy I replaced all "some" with "exactly 1". I think the first type is equivalent to the second model, but

is it possible to use Arbitrary Length Path Matching in protege SPARQL query tab? You are using the Snap SPARQL Query Plugin , not the SPARQL Query plugin . Unlike the SPARQL Query plugin, the Snap SPARQL Query plugin supports querying over inferred knowledge, but does not support property paths. From Snap-SPARQL: A Java Framework for working with SPARQL and OWL (section 4): SPARQL 1.1 contains property path expressions that allow regular-expression-like paths of properties to be matched. However, these are not supported by the Snap-SPARQL framework. While this would be a significant

i want to query from Linked Movie Database at linkedmdb.org locally. is there some rdf or owl version of it that can i download query locally instead of remotely I tried to query it and got the following error: org.openjena.riot.RiotException: <E:\Applications\linkedmdb-latest-dump\linkedmdb-latest-dump.nt> Code: 11/LOWERCASE_PREFERRED in SCHEME: lowercase is preferred in this component org.openjena.riot.system.IRIResolver.exceptions(IRIResolver.java:256) org.openjena.riot.system.IRIResolver.access$100(IRIResolver.java:24) org.openjena.riot.system.IRIResolver$IRIResolverNormal.resolveToString