Visual Queries: Explore Europeana and other data sets
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Register as a new user (email checking not done), then create a new project; to start working with Europeana, choose 'Initialize by Europeana example project'.
Alternatively, the same project contents can be uploaded after the project creation from this site.
Check out the code to set up the visual query tool locally (Docker-based running options available, as well).
https://github.com/LUMII-Syslab/obis-schemaextractor
An executable .jar file is available in build folder within the service.
The executable starts a service that can be accessed at localhost:8080/swagger-ui.html Use 'Many small queries with direct properties' as the query extraction mode for the Europeana SPARQL endpoint.
Europeana schema extraction protocol, including SPARQL queries. Schena extraction duration 1h31min.
Europeana data schema (can be loaded into the tool, or viewed textually)
Pre-configured project with initial examples (can be loaded into ViziQuer environment)
PRELIMINARY VERSION. Retrieved Europeana SHACL schema (to be updated).
In the current release SHACL schema is obtained via export from the visual query environment (export in OWL format is available, as well). It is planned to provide direct SHACL generation in the future.