Schema Extractor for ViziQuer

Load extracted schemas into ViziQuer

About Extract RDF data graph schema from an OWL ontology or directly from a SPARQL endpoint (by examining its structure).

Check the README file at the code repository for a more detailed description.

Online service Check the running service.
Contact Kārlis Čerāns to resolve occasional downtimes.

Local setup Check out binary (java jar) or the open source code to set up the service locally.


Data format Download the schema format description.

The data schema (created e.g. by the schema extractor) is a custom-formatted JSON file listing the classes and properties, as well as subclass information, information about property applicability to class instances, and cardinalities.

Check code repository for a data schema example.

Note. There are services for saving the schema as OWL ontology from within the ViziQuer tool.