- From: Luc Moreau <L.Moreau@ecs.soton.ac.uk>
- Date: Mon, 30 Apr 2012 12:34:41 +0100
- To: public-prov-wg@w3.org
Hi Paul, It's a good use case, thanks. Luc On 04/30/2012 12:31 PM, Paul Groth wrote: > My concrete use case would be to put things like confidence values on > these links. For example, in one of our systems we "guess" if there is > a tracedto and what to put some confidence value on that link. This is > one of the reasons I like attributes in the model. > > We could do this with derivation so it's not a big deal but the nice > thing is that traced to is transitive... > > cheers > Paul > > > > On Mon, Apr 30, 2012 at 1:26 PM, Luc Moreau<L.Moreau@ecs.soton.ac.uk> wrote: > >> Hi Paul, >> >> Do you have a concrete use case, in particular, with attributes? >> >> Thanks, >> Luc >> >> On 04/30/2012 12:17 PM, Paul Groth wrote: >> >>> I think traced-to is useful to sometime assert especially in the case >>> where you want to be very vague about provenance. It's also nice to >>> have attributes so that you can associate other sorts of information >>> with it. >>> >>> However, if others think it's nicer to be inference only then I won't >>> be stand in the way. >>> >>> cheers >>> Paul >>> >>> On Mon, Apr 30, 2012 at 1:02 PM, Provenance Working Group Issue >>> Tracker<sysbot+tracker@w3.org> wrote: >>> >>> >>>> PROV-ISSUE-370 (tracedTo-inference-only): Should tracedTo be moved to prov-constraints and be defined as a binary relation that can be inferred [prov-dm] >>>> >>>> http://www.w3.org/2011/prov/track/issues/370 >>>> >>>> Raised by: Luc Moreau >>>> On product: prov-dm >>>> >>>> >>>> TracedTo was introduced in the data model so as to have a transitive relation over derivations, etc. It can be inferred. In contrast, its definition as an assertion was not very compelling. In the latest version of prov-constraints, it is only defined as something that can be inferred. >>>> >>>> Really, it looks like a relation that is useful to express queries. >>>> >>>> So, in the spirit of simplification, should we move it out of prov-dm, and have it defined in prov-constraints only. >>>> >>>> At the same time, it could be simplified to a binary relation, since we have no way of inferring attributes for this relation. >>>> >>>> >>>> >>>> >>>> >>>> >>> >>> >>> >> -- >> Professor Luc Moreau >> Electronics and Computer Science tel: +44 23 8059 4487 >> University of Southampton fax: +44 23 8059 2865 >> Southampton SO17 1BJ email: l.moreau@ecs.soton.ac.uk >> United Kingdom http://www.ecs.soton.ac.uk/~lavm >> >> >> > > > -- Professor Luc Moreau Electronics and Computer Science tel: +44 23 8059 4487 University of Southampton fax: +44 23 8059 2865 Southampton SO17 1BJ email: l.moreau@ecs.soton.ac.uk United Kingdom http://www.ecs.soton.ac.uk/~lavm
Received on Monday, 30 April 2012 11:35:10 UTC