Re: Question on qualified linking between two resources

Hi Hugo,

There isn't a specific slot in the model for putting a predicate that
should be associated between body and target resources.  Would it be
sufficient just to add the triple to the graph and keep the motivation as
oa:linking?

For example:

{
  "motivation": "linking",
  "body": {
    "@id": "data.europeana.eu/item/1",
    "edm:isSimilarTo" : "data.europeana.eu/item/2"
  },
  "target": "data.europeana.eu/item/2"
}

Rob


On Mon, Jan 18, 2016 at 2:23 AM, Hugo Manguinhas <
Hugo.Manguinhas@europeana.eu> wrote:

> Hi all,
>
> We have a question on linking... how can we model an annotation expressing
> a qualified link between two resources? ... meaning that we would like the
> user when suggesting that two objects are related to be able to
> specifically express which kind of relation it is... ideally, using a
> predicate/property (from an ontology/schema) to state the type/kind of link.
>
> So that the user, for example, could make an annotation linking two
> similar items together: http://data.europeana.eu/item/09102/_UEDIN_214, a
> buccin trombone from the University of Edinburgh and
> http://data.europeana.eu/item/09102/_UEDIN_1000 another object from the
> same institution... other kinds of relations can be envisioned besides
> similarity, like derivations, composition, etc.
>
> in a typical scenario for linking, an annotation would look something like
> this:
> {
>   "motivation": "oa:linking",
>   "body": "http://data.europeana.eu/item/09102/_UEDIN_214",
>   "target": "http://data.europeana.eu/item/09102/_UEDIN_1000"
> }
> … meaning that the resource referenced in the body would be related
> (linked) to the resource referenced in the target, the way it is expressed
> also denotes direction which can be relevant for specific relations such as
> edm:isDerivativeOf.
>
> … but how could we express the type of the relation?
>
> A possible way could be to add yet another body with the type (in this
> case a SpecificResource referencing to an RDF property), much like a
> semantic tagging scenario, like so (note that in this case the role is
> crucial to distinguish the two bodies):
> {
>   "motivation": "oa:linking",
>   "body": [
>     "http://data.europeana.eu/item/09102/_UEDIN_214",
>     {
>       "@type": "SpecificResource",
>       "source": "http://www.europeana.eu/schemas/edm/isSimilarTo",
>       "role": "tagging"
>     }
>   ],
>   "target": "http://data.europeana.eu/item/09102/_UEDIN_1000"
> }
> … I am not so keen on this option since the body should be about the
> target, and in this case the edm:isSimilarTo should be categorizing the
> relation instead.
>
> Has anyone worked with similar use cases? or have ideas on how this could
> be modeled?
>
> Thank you in advance!
>
> Best regards,
> Hugo
>
> *Hugo Manguinhas*
>
> Technical R&D Coordinator
>
>
>
> T: +31 (0)70 314 0967
> M:
> E: Hugo.Manguinhas@europeana.eu
>
> Skype: hugo.manguinhas
>
>
>
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-- 
Rob Sanderson
Information Standards Advocate
Digital Library Systems and Services
Stanford, CA 94305