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RE: `void :triples` redefined to be an estimate (#89)

From: Markus Lanthaler <markus.lanthaler@gmx.net>
Date: Wed, 7 Jan 2015 00:58:59 +0100
To: "'Hydra'" <public-hydra@w3.org>
Message-ID: <050201d02a0c$be1621c0$3a426540$@gmx.net>
On 6 Jan 2015 at 10:32, Ruben Verborgh wrote:
>> According to
>> http://www.hydra-cg.com/spec/latest/triple-pattern-fragments/ the
>> object of the property void:triples is
>> an integer literal expressing the estimated total number of matching
>> But http://www.w3.org/TR/void/ states:


>> that void:triples was intended for precise numbers, not estimates.
> I got a verbal confirmation of Richard Cyganiak, co-author of VoID,
> that "void:triples was never meant to be an exact number".
> But of course, if that's not what the spec says, we should be careful.

Is there something we can point to? Even if it's just a post on some mailing

>> I think it would be better to define and use a new property
>> or hydra:triplesEstimate. Maybe that property can be defined as a
>> of void:triples.
> That might reduce its usefulness though.
> If we proceed with another property, "triples" should not be part of its
> (Perhaps hydra:estimatedItems, analogous to hydra:totalItems.)
> Personally, I think an estimate is fine as value, but I'm open to other

+1 to what Ruben said above.

Markus Lanthaler
Received on Tuesday, 6 January 2015 23:59:23 UTC

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