- From: Young,Jeff (OR) <jyoung@oclc.org>
- Date: Sat, 4 Dec 2010 17:37:10 -0500
- To: "Karen Coyle" <kcoyle@kcoyle.net>
- Cc: "public-lld" <public-lld@w3.org>
The practical use cases I can think of for skosxl:Label is an object property link to audio pronunciation or possibly a datatype property for phonetic spelling. I suspect that FRSAD Nomen has thoughts of other possibilities. The Nomen is where they attached their "schema" property, which is a possibility for skos:inScheme. Normally, though, this would be assigned to the skos:Concept. Jeff > -----Original Message----- > From: Karen Coyle [mailto:kcoyle@kcoyle.net] > Sent: Saturday, December 04, 2010 4:07 PM > To: Young,Jeff (OR) > Cc: public-lld > Subject: RE: SemWeb terminology page > > Quoting "Young,Jeff (OR)" <jyoung@oclc.org>: > > > Karen, > > > > Note that skosxl:Label is available for the "two thing" model you > refer > > to. SKOS-aware processing should presumably treat skos:prefLabel and > > skosxl:prefLabel interchangeably: > > Thanks, Jeff, > > Other than generating more lines of code and making systems work > harder :-), can you see any advantage to the two thing model with > skosxl? Are there functions you have that you wouldn't have using > Concept and prefLabel? > > kc > > > > > ex:hunger a skos:Concept ; > > skos:inScheme ex:myScheme ; > > skos:prefLabel "Hunger" ; > > skosxl:prefLabel ex:hungerLabel ; > > > > ex:hungerLabel a skosxl:Label ; > > skos:inScheme ex:myScheme ; > > skosxl:literalForm "Hunger" ; > > > > ex:myScheme a skos:ConceptScheme . > > > > "Controlled vocabulary" systems should be able to choose either or > both > > approaches. > > > > Jeff > > > >> -----Original Message----- > >> From: public-lld-request@w3.org [mailto:public-lld-request@w3.org] > On > >> Behalf Of Karen Coyle > >> Sent: Saturday, December 04, 2010 10:29 AM > >> To: Antoine Isaac > >> Cc: public-lld > >> Subject: Re: SemWeb terminology page > >> > >> Antoine, I agree with your thinking, but I'm not sure how to make it > >> acceptable to libraries, especially if they continue to see the name > >> as the "thing," which I believe is the prevalent viewpoint. cf. > FRSAD > >> which has two entities: thema (the concept) and nomen (the name > given > >> to the concept). I would tend to model subject authorities as a > >> concept (with a URI), a variety of labels (prefLabel, altLabel, > etc.), > >> and a good definition. In my version, there is only one "thing": the > >> concept. In the library version there are two things: the concept > and > >> the name. Is this a difference that matters? Or is it just two ways > of > >> saying the same thing? > >> > >> As for MADS, all of the MADS elements have been defined as > subordinate > >> to SKOS. In fact, I think that madsrdf:authoritativeLabel might be > >> skos:prefLabel with provenance. FRAD defines it that way, in a > sense, > >> by adding guidance rules and the producing agency to both the > >> identifier and the name. This fits in with the madsrdf definition of > >> authority: > >> > >> "Authoritative (also Authority, Authoritative form): the endorsed > form > >> of something" > >> > >> That definitely implies that there is an agent doing the endorsing. > >> > >> kc > >> > >> Quoting Antoine Isaac <aisaac@few.vu.nl>: > >> > >> > Hi Karen, > >> > > >> > Trying to reformulate your objections would lead me to something > >> like: > >> > - a linked data reference dataset focuses on reference URIs > >> > - a library reference dataset focuses on the terms > >> > So a "Library Linked Data reference dataset" should aim at giving > >> > URIs and not forget the terminological aspect? > >> > > >> > I don't think this in real contradiction with the idea of what a > LD > >> > reference dataset should be: of course on LD providing URIs is > >> > important but most often you want to put relevant data for these > >> > URIs. And there's no constraint on what should be relevant or not: > >> > it's not because it's LD that labels do not count. After all, one > >> > main interest of the dbPedia dataset for many LOD scenarios is > also > >> > that it comes with all these traductions, and sometimes > synonyms... > >> > There is clearly value for the entire LD world if the reference > >> > datasets can come with better terminological information > contributed > >> > by the library domain. > >> > > >> > Now indeed this does not say precisely how to get from a > traditional > >> > library authority file to a LD reference set. In fact there are > many > >> > solutions: see how VIAF, from traditional authority data, > generates > >> > all these representations (foaf:person, skos:Concept) which can be > >> > useful on the LD space. It is more a matter of being ready to > accept > >> > that the authority data can be re-packaged according to many > >> > different models. > >> > > >> > By the way on the specific MADS/SKOS issue: > >> > madsrdf:authoritativeLabel is a sub-property of skos:prefLabel. > >> > > >> > Antoine > >> > > >> > > >> >> Quoting Antoine Isaac <aisaac@few.vu.nl>: > >> >> > >> >>> Hello Karen, > >> >>> > >> >>> Would that definition of Svenonius be compatible with the view > in > >> [1]? > >> >> > >> >> I don't believe it is, which is why I posted it here. This > >> >> definition has also helped me think about the models developed by > >> >> FRAD and FRSAD, which both have an entity for the authoritative > >> >> term itself. (And this relates to the post I forwarded about > MADS.) > >> >> A primary purpose of library authority data is to control the > text > >> >> string itself as a surrogate for the thing it represents. This is > >> >> in addition to developing an identity for the thing. (I'm not > >> >> saying this is *right*, I'm just saying this is what libraries > >> >> claim to be doing.) > >> >> > >> >> I think it is easiest to see this in terms of subject (concept) > >> >> authorities. The concepts have relationships to each other, such > as > >> >> broader and narrower. Those can be modeled with URIs that > represent > >> >> the concepts. Each concept, however, also has one authoritative > >> >> expression in "natural" language. In the library sense of > >> >> controlled vocabulary, those terms identify the concept for the > >> >> user and control the interaction between the library data and the > >> >> library (human) user. > >> >> > >> >> One thing that may undermine the library emphasis on controlling > >> >> actual language terms is that these terms are allowed to change > >> >> (after careful and lengthy deliberation :-)). In this sense they > do > >> >> seem to me to be a kind of prefLabel rather than an actual > >> >> identifier (because when you change an identifier you have a > >> >> different thing; when you change a label the thing has not > > changed). > >> >> > >> >> Now the question is: is skos:prefLabel = controlled vocabulary > >> >> term? The MADS in RDF creates madsrdf:authoritativeLabel, > >> >> presumably because skos:prefLabel was not considered adequate to > >> >> express this. In a sense this becomes a question about SKOS and > the > >> >> meaning of prefLabel. > >> >> > >> >> If skos:prefLabel had been named skos:authorityLabel, I think > >> >> librarians would be more willing to use it. "Authority" is a > >> >> stronger concept than "preference." But in the end I think that > the > >> >> library emphasis on terminology is an artifact of past > >> >> technologies. I consider the library practice to be out-dated, > but > >> >> I note that the practice is being carried forward into RDF and LD > >> >> representations. > >> >> > >> >> So.... I would like to hear Marcia's take on this from the FRSAD > >> >> "thema, nomen" point of view. > >> >> > >> >> kc > >> >> > >> >>> I have the feeling that yes: reference datasets in LD still > >> >>> control the terminology, even if in the LD case the importance > of > >> >>> "terms" becomes secondary to the one of the resources that these > >> >>> terms refer to. But I'm really curious to hear from you (and > >> >>> others of course :-) ) on this. > >> >>> > >> >>> Antoine > >> >>> > >> >>> [1] http://lists.w3.org/Archives/Public/public- > >> lld/2010Dec/0029.html > >> >>> > >> >>> > >> >>>> In her book "The intellectual foundation of information > >> >>>> organization" Svenonius has a section on controlled and > >> >>>> uncontrolled vocabularies. Her statement about controlled > >> >>>> vocabularies says: > >> >>>> > >> >>>> "[Controlled vocabularies] are constructs in an artificial > >> >>>> language; their purpose is to map users' vocabulary to a > >> >>>> standardized vocabulary and to bring like information > together." > >> >>>> (p.88) [1] > >> >>>> > >> >>>> Do we agree that this is the role of our #1 group? I ask > because > >> >>>> I perceive this to be different from the original proposed > >> >>>> definition: > >> >>>> > >> >>>> "These describe concepts that are used in actual metadata." > >> >>>> > >> >>>> If you look at FRAD [2] you see that the assignment of > >> >>>> terminology to the concept is of equal or greater importance > than > >> >>>> any description of the concept itself. In fact, that's what I > >> >>>> would emphasize as the role of a controlled vocabulary: that it > >> >>>> is a method to *control* *language terms*. Many controlled > >> >>>> vocabularies have minimal information about the concepts, but > all > >> >>>> exist to make a selection of particular terms of use. > >> >>>> > >> >>>> kc > >> >>>> > >> >>>> [1] http://openlibrary.org/works/OL475973W -- a basic > foundation > >> >>>> for how librarianship views KO. > >> >>>> [2] > >> >>>> http://www.ifla.org/publications/functional-requirements-for- > >> authority-data > >> >>>> > >> >>>> Quoting "Young,Jeff (OR)" <jyoung@oclc.org>: > >> >>>> > >> >>>>>>> It would be odd to dismiss SKOS because we determined it was > >> >>>>> designed > >> >>>>>> to > >> >>>>>>> manage "concepts" rather than "controlled vocabularies". > >> >>>>>> > >> >>>>>> I certainly wouldn't want to dismiss SKOS! The point is that > >> >>>>>> SKOS organizes sets of lexical strings via underlying > concepts. > >> >>>>> > >> >>>>> I would argue that "organizing" concepts or labels is getting > >> into > >> >>>>> optional features of SKOS. Your other comments indicate you > > would > >> agree. > >> >>>>> The essential features for authority control, in my view, are > > the > >> >>>>> ability to identify something real (a skos:Concept), associate > >> them in a > >> >>>>> scheme (via skos:inScheme) and give them skos:pref/altLabels > >> >>>>> (potentially "real" via skosxl:Label). Some forms of authority > >> control > >> >>>>> may want to use additional gravy from SKOS, but others could > > just > >> as > >> >>>>> well link out to other models via foaf:focus and organize from > >> there. > >> >>>>> Either or both ways, SKOS can act as a schematic naming > network. > >> >>>>> > >> >>>>> Jeff > >> >>>>> > >> >>>>> > >> >>>>> > >> >>>> > >> >>>> > >> >>>> > >> >>> > >> >>> > >> >>> > >> >> > >> >> > >> >> > >> > > >> > > >> > > >> > >> > >> > >> -- > >> Karen Coyle > >> kcoyle@kcoyle.net http://kcoyle.net > >> ph: 1-510-540-7596 > >> m: 1-510-435-8234 > >> skype: kcoylenet > >> > >> > > > > > > > > > > > > -- > Karen Coyle > kcoyle@kcoyle.net http://kcoyle.net > ph: 1-510-540-7596 > m: 1-510-435-8234 > skype: kcoylenet >
Received on Saturday, 4 December 2010 22:44:41 UTC