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it's my first time working on ontology. I downloaded Virtuoso, also the RDFazer which helps me to...
I am still a bit confused on RDFs and Ontologies after reading multiple tutorials. I am currently...
I have a specific situation where I need to automatically generate SPARQL queries based on the...
I found this NuGet package interesting: a embedded rdf database in C# based on OpenLink Virtuoso,...
I'm linking a number of ontology models, all with a shared base model where all classes and...
I have RDF like this: <companyA> <heldBy> "companyB" . <companyA> <heldBy>...
I try to figure out how to work with SPARQL queries and the Getty database:...
How can I calculate the distance between two concepts in a Triple Store (RDF) using SPARQL queries?...
I have a .rdf file which I was used for Dgraph in order to import the data and the subsequently...
How do I store tree with ordered children in RDF? Input: 1. Title 1 Some text 1. 2. Title...
After googling for about an hour now, I am not be able to find anything that help me to put a...
The current procedure we now often perform is to extract data from an endpoint, perform...
My iPhone 6's screen size is 6 inches and red color. Vocabulary are the following: iPhone...
For example, Barack Obama, in Labelled Property Graph, the birth date (1965) would be modeled as a...
I want to make inferences such as the property represented by the grey-dotted line in this...
I want to be able to infer which ingredients go well together given...their properties and which...
I am creating an ontology based on a relational database. Some classes in my ontology are...
I am a newbie to semantic web, can anyone explain what does nxparser do and what does rdf and owl...
I have an ontology in OWL or RDF/XML format, say Dublin Core Terms, for example, but online and not...
I want to build wordpress based CMS using RDF (for persons) data as well as mySQL data (form news...
Manchester only allows to say something like: p some a and p only b But I want to say...
In a Wikidata SPARQL query such as the following, I want to be able to use a custom delimiter for...
I am new to Openlink Virtuoso. And I want to do some inference rules based on if-then statements,...
How might you define a subclass of an RDF List (yes, it needs to be an RDF List) such that it...
i've found a web page that explain different between...
The error I get when I change list1[0] to list1[1]: I am doing a progam that prints from a file...
4 weeks ago

Blank node and graph

I always faced the problem of adding a blank node and grouping some RDF triples in different RDF...
I am getting into RDF modeling and have difficulties of applying properties with subClasses. I want...
I'm trying to iterate over a large XML document, which uses RDF namespaces, eg. skos. How can I...
Is there a module or tool in Python that will help me visualize RDF data? I have a N-Triple file...