- From: Myers, Jim <MYERSJ4@rpi.edu>
- Date: Tue, 23 Aug 2011 14:48:38 +0000
- To: Luc Moreau <L.Moreau@ecs.soton.ac.uk>
- CC: "public-prov-wg@w3.org" <public-prov-wg@w3.org>
> That's exactly what I am saying, Which of the follow two directions, or something different? If someone downloads http://dx.doi.org/10.1007/978-3-642-17819-1_37, Can I assert: http://dx.doi.org/10.1007/978-3-642-17819-1_37 <--used-- DownloadPE <--generatedby-- LocalFileURI or is it http://lucsassertions.org/12345 = entity(http://dx.doi.org/10.1007/978-3-642-17819-1_37, [author = "Jim Myers", pagenumber={15-17}]) and http://lucsassertions.org/12345 <--used-- DownloadPE <--generatedby-- LocalFileURI Would pil let me say http://dx.doi.org/10.1007/978-3-642-17819-1_37 hasAuthor (dc:creator?) "Jim Myers" ? Or only http://lucsassertions.org/12345 hasAuthor "Jim Myers" ? Jim > -----Original Message----- > From: Luc Moreau [mailto:L.Moreau@ecs.soton.ac.uk] > Sent: Tuesday, August 23, 2011 10:36 AM > To: Myers, Jim > Cc: public-prov-wg@w3.org > Subject: Re: updates to PAQ doc for discussion > > Hi Jim, > > That's exactly what I am saying, your paper is an identified characterized > thing. And we can make assertions about it. An assertion is expressed with > the pil:Entity construct. > > I suppose that I can make the following different assertions about your > paper. I can further state that they complement each other. > > entity(http://dx.doi.org/10.1007/978-3-642-17819-1_37, [author = "Jim > Myers", pagenumber={15-17}]) > > entity(http://tw.rpi.edu/portal/File:IPAW2010_ITTIA_Myers.pdf, > [author="Jim Myers", presentationTime="10h15" ]) > > entity(http://easychair/uuid, [author="Jim Myers", reviewers={xyz, abc}, > recommendation="accept"]) > > > What does it sound like? > > Luc > > > On 08/23/2011 02:19 PM, Myers, Jim wrote: > > Luc, > > If my IPAW paper is on the web with a URL, why isn't that resource an > "identified characterized thing"? Are you saying that I must create another ID > for a pil:entity that is an assertion about that paper before I can record its > provenance? Or are you just arguing that because entities are assertions, an > asserter can make them up, i.e. a characterization that is most useful for > provenance may not be one that is already identified as a resource? > > > > I guess I'm looking for the practical impact - are you arguing that we always > have a layer of indirection when recording provenance of an existing > resource, or are you arguing something more subtle - use of a resource URL > in pil as an entity is an assertion that the resource is characterized in a way > that is suitable for the provenance being recorded (i.e. the resource is > immutable to the types of processes being recorded and we're not talking, > for example, about a live web page going through edit processes)? > > > > Jim > > > > > >> -----Original Message----- > >> From: public-prov-wg-request@w3.org [mailto:public-prov-wg- > >> request@w3.org] On Behalf Of Luc Moreau > >> Sent: Tuesday, August 23, 2011 5:54 AM > >> To: public-prov-wg@w3.org > >> Subject: Re: updates to PAQ doc for discussion > >> > >> > >> Hi all, > >> > >> I am joining late this conversation, but I'd like to comment on Paul's > >> sentence: > >> > >> > It may be the case that the resource (e.g. a web page) is a pil:Entity. > >> > >> I don't think this makes sense at all. A pil:Entity is a construct of the data > >> model. > >> > >> Definition: An Entity represents an identifiable characterized thing. > >> > >> So, it is reasonable to compare resource and thing (as in the model > >> document), but not resource and pil:entity. > >> > >> However, we can say a pil:entity is an assertion about a resource. > >> For a given resource, there may be many pil:entity about that resource. > >> > >> Luc > >> > >> On 08/11/2011 07:01 PM, Paul Groth wrote: > >> > >>> Hi Jim, Khalid: > >>> > >>> In the model, provenance is described with respect to pil:Entities. In > >>> the PAQ document, we describe access primarily with respect to the > Web > >>> Architecture. It may be the case that the resource (e.g. a web page) > >>> is a pil:Entity. If so, then the access approach says go ahead and use > >>> the url of that resource to find the provenance of it within an > >>> identified set of provenance information. > >>> > >>> However, it may be the case that the resource is not a pil:Entity. In > >>> that case, we provide a mechanism (Target-URIs) that let you associate > >>> the resource to a pil:Entity (the target) such that you can identify a > >>> characterization of the resource and thus find it in some provenance > >>> provenance information. > >>> > >>> This approach also lets you have multiple pil:Entities associated with > >>> a particular resource. > >>> > >>> We are just rying to find a simple way to let the accessor know when > >>> they get some provenance information what they should be looking for > >>> within that provenance information. > >>> > >>> Now, if one says that every resource is a pil:Entity, we may not need > >>> this. Is that what you're saying? and can you explain how this is the > >>> case? > >>> > >>> I hope this clarifies what we are trying to enable. > >>> > >>> Paul > >>> > >>> > >>> > >>> > >>> > >>> Myers, Jim wrote: > >>> > >>>> I think the gist of the discussion on the modeling side lately and > >>>> the decision to have 'only Bobs' would shift this towards just > >>>> talking about the link between provenance and resources with the > >>>> model then having a mechanism to indicate when some resources are > >>>> views of others, i.e. one URI is the page content on a given date and > >>>> the other URI is the live page, but both are resources that can have > >>>> provenance, and their provenance can contain links that indicate > >>>> their relationship. > >>>> > >>>> Jim > >>>> > >>>> *From:*public-prov-wg-request@w3.org > >>>> [mailto:public-prov-wg-request@w3.org] *On Behalf Of *Khalid > >>>> Belhajjame > >>>> *Sent:* Thursday, August 11, 2011 10:13 AM > >>>> *To:* Paul Groth > >>>> *Cc:* public-prov-wg@w3.org > >>>> *Subject:* Re: updates to PAQ doc for discussion > >>>> > >>>> Hi, > >>>> > >>>> My main concern reading sections 1 and 3, is the use of both resource > >>>> and target entity. I understand that the idea is that a web resources > >>>> may be associated with multiple target entities, and that there is a > >>>> need to identify which target the provenance describes. However, > >>>> having to go through the two levels resource then entity is a bit > >>>> confusing, specially for a reader is not aware of the discussions > >>>> that we had about the two concepts. > >>>> > >>>> Suggestion: Would it be really bad if we confine ourselves to the > >>>> provenance vocabulary and describe how the provenance of an Entity, > >>>> as opposed to a resource, can be accessed? > >>>> > >>>> Other comments: > >>>> > >>>> - In the definition of a resource, it said that "a resource may be > >>>> associated with multiple targets". It would be good if we could > >>>> clarify this relationship a bit more. > >>>> > >>>> - I find the definition of provenance information a bit vague, the > >>>> body of the definition says pretty much the same thing as the title > >>>> of the definition. If we don't have a better idea of what can be > >>>> said, it is probably better to remove it. > >>>> > >>>> In Section 3, Second paragraph, "Once provenance information > >>>> information" -> "once provenance information" > >>>> > >>>> In the same paragraph: "one needs how to identify" -> "one needs to > >>>> know how to identify". > >>>> > >>>> Khalid > >>>> > >>>> > >>>> > >>>> > >>>> On 10/08/2011 20:37, Paul Groth wrote: > >>>> > >>>> Hi All, > >>>> > >>>> Graham and I have been making some changes to the PAQ document > [1] > >>>> that we would like to request feedback on at tomorrow's telecon. > >>>> > >>>> In particular, we have updated Sections 1 and 3. We've added a > >>>> section on core concepts and made section 3 reflect these concepts. > >>>> We think this may address PROV-ISSUE-46 [2]. > >>>> > >>>> Please take a look and let us know what you think. > >>>> > >>>> Thanks, > >>>> Paul > >>>> > >>>> Note: Section 4 Provenance discovery service is still under heavy > >>>> editing > >>>> > >>>> > >>>> [1] > >>>> http://dvcs.w3.org/hg/prov/raw-file/default/paq/provenance- > >>>> > >> access.htm > >> > >>>> l [2] http://www.w3.org/2011/prov/track/issues/46 > >>>> > >>>> > >>> > >> -- > >> 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 Tuesday, 23 August 2011 14:49:10 UTC