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[p4-feedback] How does Protege handle the links between file name and URI?
nick.drummond at cs.manchester.ac.uk
Tue Apr 7 04:18:24 PDT 2009
2009/4/7 Nick Drummond <nick.drummond at cs.manchester.ac.uk>
> Hi Pat,
> Across sessions p4 doesn't remember where it loaded imported ontologies
> from when they were initially added or subsequently loaded, but always
> applies the same strategy.
> I believe p4 tries these locations in the following order:
> - any directory from which an ontology has been explicitly loaded
> - ontology repositories
> - the web
> - it will ask the user
> If you are loading an ontology from a local file protege will automatically
> search the containing directory to resolve imports.
> The algorithm peeks inside each potential owl file to see if it can find a
> URI that matches the one in the import statement.
> I have a feeling there are some flaws with this "peek" so please send me an
> example that breaks it if you can.
> 2009/4/7 Patrick McCrae <patrick.mccrae at informatik.uni-hamburg.de>
> Hi, Nick -
>> Could you please briefly outline what the general mechanism is that
>> Protege 4.0 uses to link file names and URIs and how its behaviour depends
>> on the system setup?
>> I still believe it is Protege's mechanism of linking these two ontology
>> attributes which have also been causing my import problems (my current
>> suspicion is that the link from URI to file always remains unchanged -
>> regardless of whether I create a new ontology with the same URI but a
>> different file name. Hence always the old ontology version gets loaded even
>> if newer versions are available locally. Would this make sense?).
>> Best regards -
>> Patrick McCrae
>> CINACS Graduate Research Group
>> Department of Informatics
>> Hamburg University
>> Vogt-Kölln-Straße 30
>> 22527 Hamburg, Germany
>> patrick.mccrae at informatik.uni-hamburg.de
>> fon: +49 . 40 . 428 83 - 23 60
>> fax: +49 . 40 . 428 83 - 25 15
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