Re: TGN place types (broader/narrower spanning ConceptSchemes)

Osma and Vladimir,

10.04.2014 15:42, Vladimir Alexiev wrote:
>> So broaderInstantial is a sort of weaker form of rdf:type.
> Yes, sort of.
> Consider this example from GND:
>    <http://d-nb.info/gnd/5055902-3> gnd:broaderTermInstantial <http://d-nb.info/gnd/4155742-6> .
>    # "Dynamo Dresden football club" BTI "Football"
> Dynamo is not an instance of Football (it's an instance of Football Club)..
> But the semantic intent is right, so if they don't have Football Club as a concept, I wouldn’t criticize GND for this case.

I definitely would, but fortunately the GND is right:
http://d-nb.info/050559028/about/rdf [SG Dynamo Dresden]
gndo:broaderTermInstantial
rdf:resource="http://d-nb.info/041557425/about/rdf" [Fußballverein@de,
football club@en]

Osma wrote:
> Thanks, this is an excellent example.

Well, the actual example from the GND exemplifies that the BTI relationhip
in thesauri is envisaged to link individuals to their resp. generic classes
(ISO 25964-1: "10.2.4.1 The instance relationship links a general concept,
such as a class of things or events, and an individual instance of that class,
which is often represented by a proper name [...]"; e.g.
http://d-nb.info/standards/elementset/gnd#broaderTermInstantial).

Individual instances in this context are usually named entities, also called
classes-of-one, corresponding to FRBRoo "manifestation singleton", and may also
include FRBRoo "manifestation product type". The ISO definition of the
instance relationship appears slightly different from rdf:type, because the
former is a semantic definition and the latter a formal one.

>    by Osma Suominen (Aalto University), 11 May 2011
>    has similar things: broaderGenericTransitive, broaderPartitiveTransitive.

I wondered why these properties were explicitly defined, because
generic hierarchies
are transitive by definition. Most authors claim partitive
relationships to be transitive
as well, but transitivity between meronyms and holonyms only holds
under certain conditions
(the parts being unique, constituent and necessary parts of the whole).



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