[Wikidata] Re: [Wikitech-l] Re: [BREAKING CHANGE ANNOUNCEMENT] Wikidata Query Service graph split available in production; scholarly entity queries require migration by March 2025

Wed, 09 Oct 2024 07:44:37 -0700 

Denny and others,

Here’s my basic goto query for SPARQL.
|SELECT (SAMPLE(?s) as ?sample) (count(*) as ?count) ?o WHERE {?s a ?o} GROUP BY ?o ORDER BY DESC (?count) LIMIT 20 | 

SPARQL Results Links:

1.

   Solution from Our Wikidata Endpoint
   
<https://wikidata.demo.openlinksw.com/sparql?default-graph-uri=http%3A%2F%2Fwww.wikidata.org%2F&query=SELECT+%28SAMPLE%28%3Fs%29+as+%3Fsample%29+%28count%28*%29+as+%3Fcount%29+%3Fo%0D%0AWHERE+%7B%3Fs+a+%3Fo%7D%0D%0AGROUP+BY+%3Fo%0D%0AORDER+BY+DESC+%28%3Fcount%29%0D%0ALIMIT+20&format=text%2Fx-html%2Btr&timeout=30000&signal_void=on>

2.

   QLever’s Endpoint doesn’t handling this, assuming
   https://qlever.cs.uni-freiburg.de/wikidata/sk8I2D is the correct one.

What am I missing here?

Kingsley

On 10/9/24 10:31 AM, Kingsley Idehen via Wikidata wrote:


HI Denny,

On 10/2/24 5:05 AM, Denny Vrandečić wrote:
The most promising show of "we are ready" for the Virtuoso Open Source edition would be what QLever has been doing for a while: to provide a public endpoint with the data loaded, and kept up to date using the public edit stream. That would be an undeniably strong argument for "just use this!" 

Aren't you aware of the public endpoints we've provided for years?

[1] https://wikidata.demo.openlinksw.com/sparql

[2] https://wikidata.demo.openlinksw.com/fct

That's VOS based.

Is there something that's missing etc?

Kingsley




On Thu, Sep 26, 2024 at 4:32 PM Samuel Klein <[email protected]> wrote:


    An updated benchmark eval (or self-evals) for the top db
    candidates seems called for :)  we would all love to see it.

    Ideally with a canonical hardware or vm spec that all can use...

    I don't know if the QLever self-eval from the spring is the right
    place to start, but I believe these
    <https://ad-research.cs.uni-freiburg.de/benchmarks/wdqs-queries/>
    are the ~300 queries they used for a Wikidata benchmark.

    🌍🌏🌎🌑
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--
Regards,

Kingsley Idehen 
Founder & CEO
OpenLink Software
Home Page:http://www.openlinksw.com
Community Support:https://community.openlinksw.com
Weblogs (Blogs):
Company Blog:https://medium.com/openlink-software-blog
Virtuoso Blog:https://medium.com/virtuoso-blog
Data Access Drivers 
Blog:https://medium.com/openlink-odbc-jdbc-ado-net-data-access-drivers

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Legacy Blogs:http://www.openlinksw.com/blog/~kidehen/
http://kidehen.blogspot.com

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​

--
Regards,

Kingsley Idehen 
Founder & CEO
OpenLink Software
Home Page:http://www.openlinksw.com
Community Support:https://community.openlinksw.com
Weblogs (Blogs):
Company Blog:https://medium.com/openlink-software-blog
Virtuoso Blog:https://medium.com/virtuoso-blog
Data Access Drivers 
Blog:https://medium.com/openlink-odbc-jdbc-ado-net-data-access-drivers

Personal Weblogs (Blogs):
Medium Blog:https://medium.com/@kidehen
Legacy Blogs:http://www.openlinksw.com/blog/~kidehen/
              http://kidehen.blogspot.com

Profile Pages:
Pinterest:https://www.pinterest.com/kidehen/
Quora:https://www.quora.com/profile/Kingsley-Uyi-Idehen
Twitter:https://twitter.com/kidehen
Google+:https://plus.google.com/+KingsleyIdehen/about
LinkedIn:http://www.linkedin.com/in/kidehen

Web Identities (WebID):
Personal:http://kingsley.idehen.net/public_home/kidehen/profile.ttl#i
        
:http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this

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