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Re: Release of SAGE 1.0: a stable, responsive and unrestricted SPARQL query server

From: Kingsley Idehen <kidehen@openlinksw.com>
Date: Sun, 9 Sep 2018 11:47:42 -0400
To: public-lod@w3.org
Message-ID: <7226add3-61f1-ec2a-77e8-193073f62d56@openlinksw.com>
On 9/8/18 7:08 PM, Hugh Glaser wrote:
> Hi.
> Not really my business (:-) - but that has never stopped me!), but I really don't understand the request for a live endpoint.
> If I want to evaluate different implementations of a software system, what I do is download or implement on my own server, and then run them (multiple times) over the same datasets on the same hardware configuration etc, so that I am comparing the same things while controlling as many variables as possible.
> Running stuff on other peoples' servers, with no reliable knowledge of the hardware or possibly even the datasets, seems of no value in terms of relative performance.
> So why are you asking for a SPARQL endpoint?
> Best
> Hugh

Hi Hugh,

This is about proving or disproving a claim along the following lines:

1. Apples vs Apples -- are we comparing SPARQL Protocol endpoints or Web
Pages pegged to specific datasets running canned queries?

2. Conceptual understanding -- the concepts behind our "Anytime Query"
feature are only demonstrable using a live endpoint, in this context
i.e., the revealing claim about complete or incomplete solutions

As I think you know, I am not going to accept questionable claims made
in public forums about our products.

If I made these audacious claims be rest assured I would have a live
instance for objective verification. I wouldn't be directing folks to a
paper.

Thanks.

Kingsley
>
>> On 8 Sep 2018, at 19:31, Kingsley Idehen <kidehen@openlinksw.com> 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〉
>> 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 
>>> --
>>> Pascal
>>>
>>>
>> -- 
>> Regards,
>>
>> Kingsley Idehen	      
>> Founder & CEO 
>> OpenLink Software   (Home Page: 
>> http://www.openlinksw.com
>> )
>>
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>>
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>>
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>>
>>
>>

-- 
Regards,

Kingsley Idehen	      
Founder & CEO 
OpenLink Software   (Home Page: http://www.openlinksw.com)

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Received on Sunday, 9 September 2018 15:48:08 UTC

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