- From: Martyn Horner <martyn.horner@profium.com>
- Date: Tue, 04 Sep 2001 08:56:44 +0200
- To: Jan Grant <Jan.Grant@bristol.ac.uk>
- CC: w3c-rdfcore-wg <w3c-rdfcore-wg@w3.org>
Jan Grant wrote: > > On Mon, 3 Sep 2001, Dan Connolly wrote: > > > Again, suppose the graph had a Bag rather than an Alt: > > > > <doc1> <dc:creator> _:a . > > _:a <rdf:type> <rdf:Bag> . > > _:a <rdf:_1> <jan> . > > _:a <rdf:_2> <dan> . > > I don't consider the two to be interchangable. Why? Compare > > http://ioctl.org/rdf/ms/rdfms#108 > "The students in course 6.001 are Amy, Tim, John, Mary, and Sue." > It seems here that the collection itself is truly considered the value > of a property, whereas... > > http://ioctl.org/rdf/ms/rdfms#111 (and #112) > "Here, any one of the items listed in the container value for > DistributionSite is an acceptable value without regard to the other > items." > > In other words, the Alt-collection itself isn't really being considered > the value of the property; the members of the Alt are being considered > so instead.* > Funny, I'd always read the bag example as `each and every member is a student in course 6.001' - that is, the property is distributed over the members of the set - not applied to the set. Therefore `alt' is a different distribution: there certainly isn't a whole-set/members difference between bag and alt - in my mind. Typically, the semantics of the properties used are intended for the individual: the use of a collection just simplifies the expression. Where does the set interpretation come from? > * although there are two kinds of alternative notion: the one in this > example is "this is true for ever member of the Alt, just pick one" (so > why isn't it just a bag?) as opposed to "this is true for at least one > member of the alt" - which is where you need some MT support (I think). -- Martyn Horner <martyn.horner@profium.com> Profium, Les Espaces de Sophia, Immeuble Delta, B.P. 037, F-06901 Sophia-Antipolis, France Tel. +33 (0)4.93.95.31.44 Fax. +33 (0)4.93.95.52.58 Mob. +33 (0)6.21.01.54.56 Internet: http://www.profium.com
Received on Tuesday, 4 September 2001 02:56:21 UTC