Re: Predicate for quasi-synoyms (with upwards posting)?

Hi Joachim

Are you searching for a model theoretical answer or for an implementation?

For the first case maybe you look into SKOS-XL, which offers a framework to give some more semantics to labels.
In the second case - and “purely” as a hint, https://skosshuttle.ch <https://skosshuttle.ch/> has solved the nice tiny purity of SKOS by introducing custom attributes.
So your question could there be solved by using a “String” custom attribute “quasi-synonym” on the meant entity.

Kind regards / Meilleures salutations / Freundliche Grüsse
Fabio Ricci
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> On 28 Mar 2017, at 09:51, Neubert, Joachim <J.Neubert@zbw.eu> wrote:
> 
> SKOS does not distinguish between synonyms and quasi-synonyms resultig from „upwards posting“ (as mentioned in https://www.w3.org/TR/skos-primer/#secalt <https://www.w3.org/TR/skos-primer/#secalt>). To give an example (taken from https://www.slideshare.net/accessinnovations/taxonomy-fundamentals-workshop-2013/37 <https://www.slideshare.net/accessinnovations/taxonomy-fundamentals-workshop-2013/37>):
> 
> :xyz skos:prefLabel “Social class” ;
>     skos:altLabel “Elite”, “Middle class”, “Working class” .
> 
> When in a retrievel or voculary mapping application each pref- and altLabel is used as synoym for each other, this creates nasty problems: If, e.g., the user searches for “Elite”, she also gets documents with “Middle class” and “Working class”.
> 
> We consider introducing some custom sub-property of skos:altLabel to differentiate the cases, like this:
> 
> :xyz skos:prefLabel “Social class” ;
>     skos:altLabel “Social background” ;
>     custom:altLabelNarrower “Elite”, “Middle class”, “Working class” .
> 
> Is anybody aware of custom specializations of skos:altLabel for quasi-synonyms we could re-use?
> 
> Any hints appreciated – cheers, Joachim