Re: [Wikidata] [wikicite-discuss] Cleaning up bibliographic collections in Wikidata

2017-12-04 Thread mathieu stumpf guntz
Haha, nice reply thank you. Le 04/12/2017 à 20:59, Finn Aarup Nielsen a écrit : Hi, I do not see any problem. SELECT ?catalog ?catalogLabel WITH {   SELECT DISTINCT ?catalog WHERE {     ?item wdt:P972 ?catalog .     FILTER NOT EXISTS { ?catalog wdt:P972 ?catalog . }   } } AS %results WHERE {

Re: [Wikidata] [wikicite-discuss] Cleaning up bibliographic collections in Wikidata

2017-12-04 Thread Finn Aarup Nielsen
Hi, I do not see any problem. SELECT ?catalog ?catalogLabel WITH { SELECT DISTINCT ?catalog WHERE { ?item wdt:P972 ?catalog . FILTER NOT EXISTS { ?catalog wdt:P972 ?catalog . } } } AS %results WHERE { INCLUDE %results SERVICE wikibase:label { bd:serviceParam wikibase:language "

Re: [Wikidata] [wikicite-discuss] Cleaning up bibliographic collections in Wikidata

2017-12-02 Thread Peter F. Patel-Schneider
It's not easy to get to a true paradox with this collection.   Not only do you have to be able to express it but you have to require that it exists. Peter F. Patel-Schneider On 12/02/2017 11:09 AM, mathieu stumpf guntz wrote: > > Hi all, > > You should in any case be sure to avoid allowing colle

Re: [Wikidata] [wikicite-discuss] Cleaning up bibliographic collections in Wikidata

2017-12-02 Thread mathieu stumpf guntz
Hi all, You should in any case be sure to avoid allowing collections which fall in Russell's paradox . So if a predicate "belongs to collection QX" is added such that an Wikidata item can be stated as being part of an other, it must be envisi

Re: [Wikidata] [wikicite-discuss] Cleaning up bibliographic collections in Wikidata

2017-11-29 Thread Brill Lyle
In addition to the Black Lunch Table project, which focuses on Visual artists from the African Diaspora, that James mentions below -- the GLAM projects for Colección Patricia Phelps de Cisneros ("CPPC") and WIKIarte, which focus on Latin American art, are both using the catalog P972 as well. https

Re: [Wikidata] [wikicite-discuss] Cleaning up bibliographic collections in Wikidata

2017-11-29 Thread fn
Dario's 1-3 is fine by me. Rather than P361 (part of), I think - as James Heald - that P972 (catalog) would be better. It is also used for artworks, for instance, https://www.wikidata.org/wiki/Q44015154 P972 https://www.wikidata.org/wiki/Q42661788 I see P972 and the associated identifier P52

Re: [Wikidata] [wikicite-discuss] Cleaning up bibliographic collections in Wikidata

2017-11-27 Thread Arthur Smith
I think the general idea of documenting collections is a good one, though I haven't thought carefully about this or some of the responses already sent. However, I think the use of P361 (part of) for this purpose might not be a good idea and a new property should be proposed for it, or some other me

Re: [Wikidata] [wikicite-discuss] Cleaning up bibliographic collections in Wikidata

2017-11-25 Thread Scott MacLeod
Hi Dario and All, Thanks, and per your "My thoughts on why we need a class to describe “(bibliographic) item collections” in @wikidata and @wikicite. Feedback welcome" - https://twitter.com/ReaderMeter/status/934204071870742528 (see reply here - https://twitter.com/WorldUnivAndSch/status/934570933

Re: [Wikidata] [wikicite-discuss] Cleaning up bibliographic collections in Wikidata

2017-11-25 Thread Sandra Fauconnier
It would be great to have federated Wikibase on meta.wikimedia.org specifically to manage these kinds of projects, institutions we work with, etc. I saw that idea appear on wishlists somewhere, but, I guess, seeing the current workload for other projects, this is not

Re: [Wikidata] [wikicite-discuss] Cleaning up bibliographic collections in Wikidata

2017-11-25 Thread Gerard Meijssen
Hoi, I "abuse" the property catalog for some time now just to get this effect. I use it to identify items that are part of a project like the "Black Lunch Table". It works really well it is used for instance to identify in queries; by associating it with a location, we know the subjects of / for a

Re: [Wikidata] [wikicite-discuss] Cleaning up bibliographic collections in Wikidata

2017-11-25 Thread James Heald
Like others in this thread, I would caution *against* overloading P31 "instance of" if possible. When a somewhat similar issue came up, re how to artists that were of interest the the "Black Lunch Table" project https://www.wikidata.org/wiki/Q28781198 that works on coverage of visual artists

Re: [Wikidata] [wikicite-discuss] Cleaning up bibliographic collections in Wikidata

2017-11-24 Thread John Erling Blad
Implicit heterogeneous unordered containers where members sees a homogeneous parent. The member properties should be transitive to avoid the maintenance burden, like a "tracking property", and also to make the parent item manageable. I can't see anything that needs any kind of special structure at

Re: [Wikidata] [wikicite-discuss] Cleaning up bibliographic collections in Wikidata

2017-11-24 Thread Andy Mabbett
On 24 November 2017 at 23:30, Dario Taraborelli wrote: > I'd like to propose a fairly simple solution and hear your feedback on > whether it makes sense to implement it as is or with some modifications. > > create a Wikidata class called "Wikidata item collection" [Q-X] This sounds like Wikimedi