Re: YASGUI: Web-based SPARQL client with bells ‘n wistles

Hi Barry,

Thanks for your feedback, I now know what to do during the coming week end
:)

-Yes I could switch to a SPARQL Endpoint with inference so you could find
all the properties in a straight forward query. Will evaluate the impact on
the rest of the LOV services.

-I was planning for a long time now to set up an index on top of the stored
vocabularies so LOV could support autocomplete function like foaf:P ->
foaf:Person or http://purl.org/dc/elements/1.1/des ->
http://purl.org/dc/elements/1.1/description. Is this the need you
expressed?

Best regards,
Pierre-Yves.


Pierre-Yves Vandenbussche.


On Tue, Aug 20, 2013 at 6:23 PM, Barry Norton <barry.norton@ontotext.com>wrote:

>
> Thanks, Bernard.
>
> I get ~5000 instances of rdf:Property (and 1643 of rdfs:Class - and oddly
> 5 instances of rdfs:Property), but more than three times as many for:
>
> SELECT (COUNT(?property) AS ?properties)
> {
> SELECT DISTINCT ?property
> WHERE{
>     {?property rdfs:domain ?domain}
>         UNION
>     {?property rdfs:range ?range}
>         UNION
>     {?property rdfs:subPropertyOf ?super}
>         UNION
>     {?sub rdfs:subPropertyOf ?property}
> }
> }
>
> I'm guessing, therefore, no inference in this store?
>
> Since OWL-implied properties would require a much more sophisticated
> query, is it possible to get the dataset and re-index this with inference?
>
> Barry
>
>
>
>
>
> On 20/08/2013 18:02, Bernard Vatant wrote:
>
>  Hello Barry
>
>
> I had a reminder today that I never answered the question below, and I am very late indeed !
>
>
> Properties and classes of all vocabularies in LOV are aggregated in a triple store
>
>
> of which SPARQL endpoint is at http://lov.okfn.org/endpoint/lov_aggregator
>
> This is quite "raw data" but you should find everything you need in there.
>
>
>
> Otherwise can also use the new API http://lov.okfn.org/dataset/lov/api/v1/vocabs
>
> which for each vocabulary provides the prefix and link to the last version stored.
>
>
>
>
> Hope that helps
>
>
> Bernard
>
> From: Barry Norton <barry.norton@ontotext.com <barry.norton@ontotext.com?Subject=Re%3A%20YASGUI%3A%20Web-based%20SPARQL%20client%20with%20bells%20%FFn%20wistles&In-Reply-To=%3C51D7F122.5060407%40ontotext.com%3E&References=%3C51D7F122.5060407%40ontotext.com%3E>>Date: Sat, 06 Jul 2013 11:27:46 +0100
>
> Bernard, does LOV keep a cache of properties and classes?
>
> I'd really like to see resource auto-completion in Web-based tools like
> YASGUI, but a cache is clearly needed for the to be feasible.
>
> Barry
>
>
>
>