The way skos:broader is being used in our case is a tree like structure
with some having multiple parents that can be broader but will point back
to the same main broad concept which branches out to its children,
grandchildren, etc. I need the shortest path from whichever instance is
selected to all of its descendants. All will have the connection to each
other through the skos:broader within the family tree (some can have more
than 1 direct skos:broader concept (parent)).
Do you have any example documentation on how those functions can be
utilized?
On Sat, Feb 17, 2024 at 2:44 AM Holger Knublauch <hol...@topquadrant.com>
wrote:
> Hi Marie,
>
> we do have some built-in functions including spif:shortestObjectsPath and
> swa:shortestPathsBetweenNodes that may help.
>
> To clarify your requirements, is it true that one of the nodes is always
> an (indirect) parent of the other node, or does the algorithm also need to
> walk in one direction and then in another direction of the tree structure?
>
> And are we talking about tree structures at all, or arbitrary graphs?
>
> Holger
>
>
> On 16 Feb 2024, at 10:48 pm, Marie Valadez <mevalade...@gmail.com> wrote:
>
> I have searched and tested out multiple ways to get the distance between
> two nodes. I want a query that will show the child concepts and how far
> away they are from the current concept so that I can create a table on a
> form showcasing this.
>
> The following query works if a ?sub concept does not have two connection
> through skos:broader. But once a ?sub has two parent concepts with the
> skos:broader it overcounts. I have included a basic example diagram on the
> issue I am dealing with. Any ideas on how to get an accurate count?
>
> SELECT ?sub (count(distinct ?mid) as ?distance)
> WHERE {
> $this ^skos:broader* ?mid .
> ?mid ^skos:broader+ ?sub .
> }
> group by $this ?sub
>
>
>
>
>
>
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