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I want to build spatial index on my Jena Fuseki server. I try to follow the doc here :...
I am using fuseki-server to query a large chunk of data. The data is in .nt format and I have...
A bit of background: PropertyFunction is an interface in Jena API that allows doing performing...
I'm using this family ontology (www.cs.man.ac.uk/~stevensr/ontology/family.rdf.owl) where I've...
The problem is: I expect this code to have rdf:type property of that special Individual, but the...
I am a newbie of SPARQL and Fuseki. I set up Fuseki Server with fuseki-server --update --mem...
I got to this question: How match JAXB elements in CIM/RDF? looking for ways to create CIM/XML...
I'm running jena-fuseki server on Ubuntu 16.04. I'm trying to load the dataset as...
When i run this query on dbpedia.org SELECT DISTINCT ?resource ?label ?location WHERE { ...
In my opinion : Query the answer from the RDF 3-tuples, if no answer ,then try a reasoner. Use...
I want to read RDF binary using jena thrift this is my code FileOutputStream fos=new...
Pressure of gasTurbine is 10 and pressure of steamTurbine is 20. Now i have to select pressure of...
I have a Virtuoso server 7.20.3217 where I upload my data. According to Virtuoso documentation,...
I'm looking for a way to query against a RDF file formatted in Turtle syntax. The RDF file is...
I am running the Virtuoso SPARQL endpoint for executing the query. but while I am executing the...
I am new at this area. I have built an ontology project on eclipse by using jena. However, I would...
Given a Jena Resource object (org.apache.jena.rdf.model.Resource), how can I get the prefix of the...
I am getting below error while running SPARQL query, ERROR [main] (RDFDefaultErrorHandler.java:40)...
I have created a TDB data set and loaded data into it. I want to execute the following...
2 weeks ago

No GRAPHs in Jena TDB

I loaded two .nq files into TDB using the following code: Dataset dataset =...
I'm trying to build a java application to make semantic searching on user given search query on...
I'm following the instructions for this Docker image, which describes how to set up a new...
I am trying to save data in the following url as triples into triples store for future query. Here...
I'm using RDFConnectionFactory to connect to a remote fuseki server in a web application using...
I'm doing small task on Apache Jena. I have write script that takes CSV (comma seperated values)...
I try to start a docker container with jena, but i get an UnknownHostException My code: ...
I'm doing small assignment on Apache Jena. I'm using Eclipse (programming for Java). Basically I...
I have an RDF schema and some data which conforms to that schema. The data references the schema by...
I have a problem with the command line tools of Apache Jena. I want to create a tdb2 database for a...
I am new in sementic web. I am trying to write the results of the SPARQL describe query on file. I...