- From: Kingsley Idehen <kidehen@openlinksw.com>
- Date: Sat, 8 Sep 2018 15:35:57 -0400
- To: public-lod@w3.org
- Message-ID: <62e95cf3-bb51-4a00-474d-62f3e264af32@openlinksw.com>
On 9/8/18 2:53 PM, Martynas Jusevičius wrote:
> http://sage.univ-nantes.fr/sparql/dbpedia-2016-04
>
> Isn’t this the endpoint?
No it isn't.
That is a Web Page in front of a SPARQL service scoped to specific
datasets.
Here's a set of commands (for Unix, Linux, or macOS) that a SPARQL
endpoint for the SPARQL Protocol would handle:
echo "
select distinct ?o
where {?s a ?o}
limit 100" > sparql-query.rq ;
cat sparql-query.rq ;
QUERY=$(<sparql-query.rq) && curl -X POST -H "Accept: text/html"
--data-urlencode "query=$QUERY" http://linkeddata.uriburner.com/sparql ;
QUERY=$(<sparql-query.rq) && curl -X POST -H "Accept:
application/sparql-results+xml" --data-urlencode "query=$QUERY"
http://linkeddata.uriburner.com/sparql ;
QUERY=$(<sparql-query.rq) && curl -X POST -H "Accept: text/html"
--data-urlencode "query=$QUERY"
http://sage.univ-nantes.fr/sparql/dbpedia-2016-04 ;
QUERY=$(<sparql-query.rq) && curl -X POST -H "Accept:
application/sparql-results+xml" --data-urlencode "query=$QUERY"
http://sage.univ-nantes.fr/sparql/dbpedia-2016-04 ;
> On Sat, 8 Sep 2018 at 20.38, Kingsley Idehen <kidehen@openlinksw.com
> <mailto:kidehen@openlinksw.com>> wrote:
>
> On 9/8/18 2:31 PM, Kingsley Idehen wrote:
>> On 9/8/18 4:23 AM, Pascal Molli wrote:
>>> Dear Kingsley,
>>>
>>> We detail how, and in which context, we achieved the SaGe result in:
>>>
>>> Thomas Minier, Hala Skaf-Molli, Pascal Molli. SaGe:
>>> Preemptive Query Execution for
>>> High Data Availability on the Web. 2018. 〈hal-01806486
>>> <https://hal.archives-ouvertes.fr/hal-01806486v1>〉
>>>
>>
>> Hi Pascal,
>>
>> You re making claims that are best verified in a live environment
>> i.e., one of the fundamental virtues of a SPARQL endpoint.
>>
>> We have many live endpoints:
>>
>> [1] http://dbpedia.org/sparql
>> [2] http://dbpedia-live.openlinksw.com/sparql
>> [3] http://linkeddata.uriburner.com/sparql
>> [4] http://lod.openlinksw.com/sparql
>>
>> many others published by others.
>>
>> We even share documents regarding configuration [1].
>>
>>>
>>> The result is confirmed with extensive benchmarks with Virtuoso,
>>> TPF and BrTPF.
>>> The paper details how to re-run the experimentations.
>>
>> No, you are observations from a setup constructed by you. I am
>> requesting that you demonstrate your claims via a live SPARQL
>> endpoint, not a paper. I am requesting this for a specific
>> reason, so can you provide this or not?
>>
>>>
>>> To improve data availability for end-users, we optimized the
>>> SaGe server for
>>> public LOD servers with read-only datasets. SaGe preempts running
>>> queries at low cost to provide a stable, responsive and
>>> unrestricted service
>>> in this context.
>>>
>>> The "Anytime Query" capability of a Virtuoso server is great but
>>> does not ensure complete
>>> answers.
>>
>> Again, until you provide a live SPARQL endpoint you will not
>> actually understand why "Anytime Query" actually exists i.e., you
>> "..is great but does not ensure complete answers" speaks for itself.
>>
>>>
>>> If you need more details about our results, we will be happy to
>>> share with you what we
>>> observed on Virtuoso.
>>
>> Can you provide a live SPARQL endpoint or not?
>>
>> Kingsley
>
>
> I forgot to add the URI of the Google Spreadsheet containing
> configuration details of various live Virtuoso instances.
>
> [1]
> https://docs.google.com/spreadsheets/d/1-stlTC_WJmMU3xA_NxA1tSLHw6_sbpjff-5OITtrbFw/
>
>
> --
> Regards,
>
> Kingsley Idehen
> Founder & CEO
> OpenLink Software (Home Page: http://www.openlinksw.com)
>
> Weblogs (Blogs):
> Legacy Blog: http://www.openlinksw.com/blog/~kidehen/
> <http://www.openlinksw.com/blog/%7Ekidehen/>
> Blogspot Blog: http://kidehen.blogspot.com
> Medium Blog: https://medium.com/@kidehen
>
> 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
>
--
Regards,
Kingsley Idehen
Founder & CEO
OpenLink Software (Home Page: http://www.openlinksw.com)
Weblogs (Blogs):
Legacy Blog: http://www.openlinksw.com/blog/~kidehen/
Blogspot Blog: http://kidehen.blogspot.com
Medium Blog: https://medium.com/@kidehen
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
Attachments
- application/pkcs7-signature attachment: S/MIME Cryptographic Signature
Received on Saturday, 8 September 2018 19:36:23 UTC