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

The VoID landing page is alive at http://rdfs.org/ns/void --> http://vocab.deri.ie/void

It also appears to support HTTP conneg.

From: Pieter Colpaert <pieter.colpaert@ugent.be>
Sent: Wednesday, 18 September, 2019 17:16
To: public-lod@w3.org
Subject: 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><mailto:kidehen@openlinksw.com>
Gesendet: Mittwoch, 18. September 2019 03:10
An: public-lod@w3.org<mailto: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>

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Michel Dumontier
Distinguished Professor of Data Science
Maastricht University
http://dumontierlab.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


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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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