What is the difference between RDF and OWL? Understanding the Difference Between RDF and OWL In the realm of semantic web technologies RDF Resource Description Framework and OWL Web Ontology Language ofte 3 min read 09-10-2024 27
What does slash mean in a SPARQL property path? Navigating the Web of Data Understanding Slashes in SPARQL Property Paths The Semantic Web powered by RDF Resource Description Framework and SPARQL SPARQL Proto 2 min read 07-10-2024 21
select all triples, indicating named graph if relevant Selecting Triples with Named Graphs A Comprehensive Guide Understanding how to select triples from a knowledge graph especially when dealing with named graphs i 2 min read 06-10-2024 41
Convert huge linked data dumps (RDF/XML, JSON-LD, TTL) to TSV/CSV Taming the Data Beast Converting Linked Data Dumps to TSV CSV The world of linked data is vast and complex offering incredible potential for knowledge discovery 3 min read 06-10-2024 44
Unable to load individuals from the owl/rdf file using python owlready2 Unlocking the Secrets of OWL RDF Files with Owlready2 Troubleshooting Individual Loading The Problem You ve been working diligently with Owlready2 a Python libr 2 min read 04-10-2024 37
SPARQL Encapsulated `OPTIONAL` in complex query Understanding SPARQLs Encapsulated OPTIONAL in Complex Queries SPARQL SPARQL Protocol and RDF Query Language is a powerful tool for querying and manipulating da 2 min read 24-09-2024 57
How the pattern of URIs for an rdf graph should look like Understanding URI Patterns in RDF Graphs When working with RDF Resource Description Framework graphs one of the most critical aspects is how to structure URIs U 2 min read 23-09-2024 56
Generate OWL from RDF generated data Generating OWL from RDF Data A Comprehensive Guide In the world of semantic web technologies Resource Description Framework RDF and Web Ontology Language OWL pl 3 min read 21-09-2024 50
Virtuoso 37000 Error SP031: SPARQL compiler: Variable is not allowed in a constant clause Understanding the Virtuoso 37000 Error SP 031 SPARQL Compiler Issue with Variables in Constant Clauses If you have ever encountered the Virtuoso 37000 Error SP 2 min read 20-09-2024 51
Apache Jena Fuseki Reasoning, online update and named graphs possible? Understanding Apache Jena Fuseki Reasoning Online Update and Named Graphs Apache Jena Fuseki is a powerful and flexible framework designed for serving and manag 3 min read 19-09-2024 40
Ask query returns results true but select query return nothing Understanding the Discrepancy Why Does an Ask Query Return Results While a Select Query Returns Nothing When working with databases or query languages such as S 2 min read 17-09-2024 53
Using OWL with Python Working with OWL ontologies in Python A Practical Guide Working with ontologies can be a powerful tool for representing knowledge and performing reasoning tasks 2 min read 06-09-2024 60
Protégé / OWL make a property refer to another property Modeling Dynamic Sequencing in Protege Using Properties to Define Order In ontology modeling we often need to represent the order of elements within a collectio 2 min read 03-09-2024 49
Convert Python networkx graph to RDF format Converting Python Network X Graphs to RDF Format A Practical Guide The ability to manipulate and represent graphs in different formats is crucial for many tasks 3 min read 01-09-2024 60
Inside Virtuoso named graphs can RDF String literals be represented in different encodings? h1 Inside Virtuoso named graphs can RDF String literals be represented in different encodings h1 This article addresses a common issue encountered when working 2 min read 28-08-2024 63