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Re: FOAF and relationship

From: Yuzhong Qu <yzqu@seu.edu.cn>
Date: Sat, 26 Jun 2004 11:23:32 +0800
Message-ID: <004101c45b2c$f72f7e30$fd0b77ca@xobjects>
To: "Victor Lindesay" <victor@schemaweb.info>
Cc: "RDF-Interest" <www-rdf-interest@w3.org>
How about defining "foaf:knowsEachOther" as a sub-property of  foaf:knows?

foaf:knowsEachOther rdf:type owl:SymmetricProperty 
foaf:knowsEachOther rdfs:subPropertyOf foaf:knows

As Jeremy Carroll and Tim Nowaczyk pointed out, it may be useful to do so.


Yuzhong Qu

----- Original Message ----- 
From: "Victor Lindesay" <victor@schemaweb.info>
To: <www-rdf-interest@w3.org>
Sent: Saturday, June 26, 2004 4:01 AM
Subject: RE: FOAF and relationship


> 
> Tim wrote:
> 
> > So, foaf:knows is a symmetric property.
> 
> Not sure. I may have a 'reciprocated interaction' with a person which I
> consider significant enough to put in my FOAF but they may not know me
> from Adam :-) or worse still they might not want to know me :-(
> 
> Not defined as symmetric in the schema either.
> http://xmlns.com/foaf/0.1/index.rdf

> 
> FOAFsters on rdfweb-dev have pondered the semantic of foaf:knows at
> great length over the years and recognised that its use is a personal
> declaration which maybe useful, but nothing more. 
> 
> 
> 
Received on Friday, 25 June 2004 23:22:10 GMT

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