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Re: schema.org/sameThingAs proposal

From: Jason Douglas <jasondouglas@google.com>
Date: Fri, 22 Jun 2012 13:41:37 -0700
Message-ID: <CAEiKvUBZS73FWvP2q0VRc=t7d+YFV5aHNH+Cr+TtqdfDzAzOyA@mail.gmail.com>
To: Kingsley Idehen <kidehen@openlinksw.com>
Cc: public-vocabs@w3.org
Which of those corresponds to the "same real-world entity"?  I guess I
could see Thing/equivalentThing as an alternative name.

-jason


On Fri, Jun 22, 2012 at 1:30 PM, Kingsley Idehen <kidehen@openlinksw.com>wrote:

> On 6/22/12 11:21 AM, Dan Brickley wrote:
>
>> The idea is similar to W3C's existing 'owl:sameAs' relationship, but
>> more flexible / loose, since with schema.org markup (and
>> rdfa/microdata in general) it is very common to see mixing of
>> identifiers for things, and identifiers for pages-about-those-things.
>>
>> Basically all sameThingAs says is, "whether these are direct or
>> indirect identifiers doesn't matter for now; they point to the single,
>> same real-world entity".
>>
> So you want:
>
> Equivalence by Name -- sameAs
> Equivalence by Value -- content equivalence basically
> Equivalence by Intent -- nebulous layer above which could carry the
> semantics you seek i.e., the are loosely equivalent in some way understood
> by the claim maker, at best.
>
> Thus, Instead of "same" you would have "equivalent" where the other
> equivalences become subproperties that hook nicely into the pattern already
> established re. rdf:type.
>
> So you have:
>
> equivalentByName
> equivalentByValue
> equivalentByIntent.
>
> "same" is a problem vector for those that see the label and then interpret
> relationship semantics literally. You've already seen the distraction it
> creates for Linked Data :-)
>
> --
>
> Regards,
>
> Kingsley Idehen
> Founder & CEO
> OpenLink Software
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>
>
>
>
>
Received on Friday, 22 June 2012 20:42:06 GMT

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