Re: Discovery Protocol? (was: LODCloud SPARQL Endpoints Spreadsheet)

Hi Jens,

VOID once described this protocol: https://www.w3.org/TR/void/#well-known

However, all URIs of VOID don’t dereference any longer. When I contacted 
the authors, only 1 replied that he moved on and wasn’t able to get it 
back online. I agree that we need better dataset and interface discovery 
for Linked Data APIs/protocols. Currently there is a void (badum ts) 
between DCAT-AP and Hydra that a VOID2.0 could fix.

I would then not only want discovery protocols for SPARQL endpoints, but 
for the entire spectrum of Linked Data Fragments [1].

Kind regards,

Pieter

[1] http://linkeddatafragments.org

On 18/09/2019 08.55, Jens Scheidtmann wrote:
>
> Hi everyone,
>
> Is there a way to discover SPARQL endpoints? “Way” meaning ideally a 
> protocol or at least a linked data way of publishing the existence of 
> a SPARQL endpoint or some such.
>
> Jens
>
> *Von:*Kingsley Idehen <kidehen@openlinksw.com>
> *Gesendet:* Mittwoch, 18. September 2019 03:10
> *An:* public-lod@w3.org
> *Betreff:* Re: LODCloud SPARQL Endpoints Spreadsheet
>
> On 9/17/19 7:57 PM, Michel Dumontier wrote:
>
>     Hi,
>
>      So, Bio2RDF's datasets are now just served from one sparql
>     endpoint, and are loaded into different (versioned) graphs. how do
>     you want to deal with this?
>
>     m.
>
> Hi Michel,
>
> Is there now a canonical endpoint that renders all the others 
> redundant? Anyway, just add the endpoint in question or indicate the 
> ones to be dropped.
>
> Kingsley
>
>     On Tue, Sep 17, 2019 at 3:15 PM Kingsley Idehen
>     <kidehen@openlinksw.com <mailto:kidehen@openlinksw.com>> wrote:
>
>         Hi Everyone,
>
>         As part of the LODCloud effort (starting in 2007), a number of
>         SPARQL Endpoints emerged around the initial SPARQL endpoint
>         provided by DBpedia. Today, that cloud has grown into the
>         largest Knowledge Graph on earth (by far!) and continues to
>         drive new frontiers related to Artificial Intelligence and
>         Machine Learning.
>
>         Having established itself as the preeminent global Knowledge
>         Graph on earth, it is extremely important that we maintain an
>         active list of SPARQL endpoints using practices that scale.
>         Thus, we are providing a shared Google Spreadsheet for
>         crowd-sourcing the maintenance of SPARQL endpoints that make
>         up this important Knowledge Graph.
>
>         Please contribute your SPARQL endpoint(s) to the spreadsheet.
>
>         *Links*
>
>         ·SPARQL Endpoint Google Spreadsheet 1
>         <https://community.openlinksw.com/t/open-invitation-for-contributions-to-an-up-to-date-list-of-query-service-endpoints-that-underlie-the-massive-lodcloud-knowledgegraph/1202>
>
>         ·What is the LODCloud, and why is it important?
>         <https://medium.com/virtuoso-blog/what-is-the-linked-open-data-cloud-and-why-is-it-important-1901a7cb7b1f>
>
>         -- 
>
>         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
>
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>
>         Google+:https://plus.google.com/+KingsleyIdehen/about
>
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>
>         Web Identities (WebID):
>
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>
>                  :http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this
>
>
>     -- 
>
>     Michel Dumontier
>     Distinguished Professor of Data Science
>
>     Maastricht University
>     http://dumontierlab.com
>
> -- 
> 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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