In my RDF store I have the following triples For schema: For instances: I want to: Get properties of class ex:animal Get the instan ...
In my RDF store I have the following triples For schema: For instances: I want to: Get properties of class ex:animal Get the instan ...
I am trying to delete a known URI from our triplestore. It can be a subject or an object, by its predicates. So what I like to do is the following: ...
I know I can select default and/or named graphs for queries, but my question is: Can I hide any named graphs in Apache Jena from being listed or quer ...
I have rdf files in xml format. I am building out a graph db, but was hoping everything could be in Accumulo format instead. Basically I would just ne ...
For learning SPARQL it might be useful to have full control both over the query text and the data (RDF triples). While there are many public SPARQL en ...
I would need to get all data related to a subject. I tried to query for But the problem is that some of the ?o objects are URIs and I also need tho ...
I need to modify the header (specifically the Content-Type) of a request (eg: update) of an RDFConnection object in a Jena transaction. More precisely ...
I'm learning the semantic-web technologies and the power of linked data. Use of RDF, RDFS, OWL inference could come really handy. Sparql query to read ...
I have more records of the same subject and predicate, but different object, like: How could I query the data to get the result with comma separate ...
I have basically a triple store in a mongoDB: It is a huge collection of data where every row contains an entry for "subject", "property" and "object" ...
I am currently trying to read the files of an RDF4J triplestore from the universAAL platform and put them into an InfluxDB to merge the data from diff ...
I have an RDF ontology in a triplestore that users can make changes to. I want to increment/alter the ontology version with each change. One way to do ...
I am playing with Blazegraph. I insert some triples representing 'events', each of 'event' contains 3 triples and looks like this: Timestamps repre ...
Using virtuoso 7 open source edition, This query below is fast, it return the result instantly, This query is so slow, took 10 seconds for the res ...
I used this code for training a model. I now have 3 files: model.ckpt-1.meta model.ckpt-1.index model.ckpt-1.data-00000-of-00001 How (with ...
Considering the following dataset I am trying to find all friends-of-friends but stop expanding the path as soon as one of the friends is e.g. a Lawye ...
I was reading a book where I came across this line: "The SPARQL FROM clause provide another way to define custom union graphs. The FROM clause is use ...
I am new to using Blazegraph and am have been developing with it locally as part of a project over the past few months. I am currently trying to host ...
Consider a tree: Every bottom node represents one path. How can I count the number of "class changes" when following the path from the root node ...
I am developing a .Net API and connecting it with RDF Triple Store, with the help of dotNetRdf library. I am successfully able to load the data and qu ...