OPAL batch

This component reads RDF files and applies the following OPAL components:

• Catfish (data-cleaner-service)
• Civet (quality-metrics-service)
• Metadata-Refinement (opal-confirm-conversion-service)

How to use

• Download the latest release.
• Create a copy of the default.properties file and edit the copy.
  At least, set io.input and io.outputDirectory.
• Finally, run it by java -jar opal-batch.jar default.properties.

Get data to process

Data should be in a RDF serialization format and using the Data Catalog Vocabulary (DCAT) vocabulary.

You can find ready-to go input data at the Hobbitdata Server. Data from open data portals is available in the directories OPAL/processed_datasets and OPAL/SourceGraphs.

Credits

Data Science Group (DICE) at Paderborn University

This work has been supported by the German Federal Ministry of Transport and Digital Infrastructure (BMVI) in the project Open Data Portal Germany (OPAL) (funding code 19F2028A).