OWL Extraction

OWL Extraction

Follow this page for the basic setup of the project in IntelliJ:

• https://github.com/dbpedia/extraction-framework/wiki/Setting-up-IntelliJ-IDEA

Use the "owl-extraction-clean" branch, since it is the most up to date one.

• https://github.com/andreasknoepfle/extraction-framework/tree/owl-extraction-clean

The following sections list the configurations for perfoming an OWL based extraction. Replace the config in brackets ([...]) with your configuration.

Download OWL Ontology:

Download the Ontology as usual with the OntologyDownloader class

• class: org.dbpedia.extraction.util.OntologyDownloader
• arguments: ontology.xml ontology.owl [version]
• module: core
• working directory: path-to-your-extraction-framework/extraction-framework/

Download OWL Mappings:

Download the Mappings as OWL files:

• class: org.dbpedia.extraction.owlmappings.MappingsOwlDownloader
• arguments: owlmappings ontology.owl
• module: core
• working directory: path-to-your-extraction-framework/extraction-framework/

Download the Dump

Download the Dump as usual:

• class: org.dbpedia.extraction.dump.download.Download
• arguments: config = "your config file name"
  • (config=download.minimal.properties for example)
• working directory: path-to-your-extraction-framework/extraction-framework/dump
• module: dump

Start the OWL Extraction

• class: org.dbpedia.extraction.dump.owlextract.ExtractionOWL
• arguments: your config file name
  • (extraction.default.properties for example)
  • In the config file, have the following lines (with the dowloads above)
    • ontology=../ontology.owl
    • mappings=../owlmappings
• working directory: path-to-your-extraction-framework/extraction-framework/dump
• module: dump