How to work with Openlink Virtuoso?

Created on 28 February 2024, 4 months ago

According to the documentation, WissKI should work with popular triple stores such as Openlink Virtuoso, which is also used by OpenEuropa. Openlink Virtuoso is probably better than Ontotext GraphDB for the former is open source and the free edition of the latter only support 2 concurrent connections. :-(

I guess we can use the WissKI SPARQL1.1 Adapter with Pathbuilder or WissKI RDF via SPARQL1.1 Adapter with Pathbuilder (which one?). The endpoint is http://localhost:8890/sparql , But I don't know how to do fill in the Default Graph text field and other things.

Could anyone share a working example, plsssss?

πŸ’¬ Support request
Status

Active

Version

3.0

Component

Documentation

Created by

πŸ‡¨πŸ‡³China fishfree

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  • Issue created by @fishfree
  • πŸ‡©πŸ‡ͺGermany Knurg

    I am unsure if virtuoso really works as WissKI does queries with e.g.
    the * operator. The typical systems we had used in the past are rdf4j,
    graphdb, blazegraph and stardog. Jena FUSEKI was not working well in
    the past because it did not do cross-graph-reasoning which is needed
    if you have a rather complex ontology tree in the backend.

    We will have to join forces on this as we don't have virtuoso up and
    running and you have it.

    You have to select the adapter according to your needs. If you want to
    do OWL you need the regular SPARQL 1.1 Adapter - that is what we
    typically do. The RDF-Adapter is just in case you don't want to do OWL
    and just want to do RDF, but it is optimized for the rdf version of
    cidoc crm and might not fit your specific needs.

    Default Graph etc. are prefilled by default with useful values that
    should work right away. It won't trouble you in the beginning :)

    There is a running docker container with an example wisski with
    example data at
    https://wiss-ki.eu/documentation/installation/docker/wisski-example

    Cheers :)

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