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Re: "oh yeah?" - button

From: Reto Bachmann-Gmuer <reto@apache.org>
Date: Wed, 8 Sep 2010 11:31:01 +0200
Message-ID: <AANLkTima1DQsh+Xrbpkn9iv6U2aU=sC9RPGN6PLPYh_5@mail.gmail.com>
To: Paul Groth <pgroth@gmail.com>
Cc: public-xg-prov@w3.org
Thanks Paul for the pointers.

Both the concept of content as well as the seal seem to be based on
the notion of original content by a single source, and metadata on
which entailment and inference is to be applied. When it comes to
facts about a shared world multiple parties may come to assert the
same triples independently. In this case the inference is not
something applied on the provenance record but to the believes that
are the object of provenance. Alice has reason to believe that there
is something that is a cat and can fly because:

- Bob says that :Felix can fly and Susanne says that :Felix is a cat
- John says that tigers can fly and Peter says that tigers are cats

I think the provenace of artifacts and contents which the use cases
seem to focus on is an application of the more general question on the
provenance/justification of believes.


On Tue, Sep 7, 2010 at 4:39 PM, Paul Groth <pgroth@gmail.com> wrote:
> Hi Reto,
> If you take a look at the discussion of justifications for decisions in the
> Content section of the User Requirements document
> (http://www.w3.org/2005/Incubator/prov/wiki/User_Requirements#Content).
> There's a notion of using provenance to justify why a system presents a
> particular outcome, in your case Why something is both a cat and a flying
> object.
> Also, in the News Aggregator Scenario, there's a notion of a seal (similar
> to the "oh yeah button") where users can find out why a post was constructed
> in a particular fashion.
> I hope that clarifies things.
> Paul
> Reto Bachmann-Gmuer wrote:
>> Hello
>> I was just having a first read of the use cases and requirements. Most
>> use cases seem to assume single provenances of assertion and I was
>> wondering where a "oh yeah?"-button would fit in.
>> Something Alices presses on when she reads [ rdf:type eg:cat; rdf:type
>> eg:flyingObject] to get an enumeration of sets  of (sub)graphs and
>> their (somehow trusted) source that entail that there is something
>> that flies and is a cat.
>> Cheers,
>> reto
Received on Wednesday, 8 September 2010 09:31:29 UTC

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