[foaf-dev] [foaf-protocols] FOAF sites offline during cleanup

Kingsley Idehen kidehen at openlinksw.com
Wed Apr 29 14:50:48 CEST 2009


Richard Cyganiak wrote:
> Kingsley,
>
> You host the subset of LOD datasets that publish RDF data dumps in 
> addition to linked data. Here, that's precise *and* comprehensible.
We host the subset of LOD datasets that publish RDF data dumps in linked 
data form, or according to LOD community linked data publishing 
guidlines. I believe either is a little more accurate :-)

>
> I doubt that the community will change its terminology or adopt random 
> neologisms just because it would be convenient to someone.
>
> Can we please get back to the thread's original topic now?
Sure, but as you can imagine, the last word has to be accurate :-)

Others: If there is more to add, let's do this on the LOD mailing list.

Kingsley
>
> Thank you,
> Richard
>
>
>
> On 29 Apr 2009, at 02:31, Kingsley Idehen wrote:
>
>> Peter Williams wrote:
>>> almost incomprehensible - to the layman. But, I believed you - to 
>>> about 51%.
>>>
>> The LOD-Cloud pictorials:
>>
>> 1. 
>> http://www4.wiwiss.fu-berlin.de/bizer/pub/lod-datasets_2009-03-27.html
>> 2.
>> http://www4.wiwiss.fu-berlin.de/bizer/pub/lod-datasets_2009-03-27_colored.png 
>>
>>
>> Problems:
>>
>> 1. The black and white clickable version does really group the bubbles
>> 2.  Neither pictorial provides clarity as to what's constructed from
>> physical RDF dumps (as per LOD community best practices), "on the fly"
>> RDFization, or Progressive Crawling.
>>
>>
>> Thus, when I say: we have a Virtuoso instance hosting the LOD-Cloud [1],
>> someone can always come along an question the accuracy of the claim (as
>> Hugh has just done).
>>
>> In anticipation of the problem I describe above, I sought to partition
>> the LOD-Cloud along the following lines: Warehouse (stuff loaded from
>> dumps) and Dynamic (RDFized Data). Then I could say with accuracy, bar
>> inadvertent omission, that we have an instance hosting the Warehouse
>> component of the LOD-Cloud.
>>
>> Hugh: So to be precise, we are claiming to host the LOD-Cloud Warehouse
>> :-) The Graph Group IRIs used in the VoiD graph [2] reflect most of the
>> partitioning you see in the colored pictorial re. the stuff available as
>> Linking Open Data community dumps [3][4].
>>
>>
>> Links:
>>
>> 1. http://lod.openinksw.com
>> 2. http://lod.openlinksw.com/void/Dataset
>> 3. http://esw.w3.org/topic/DataSetRDFDumps
>> 4. http://esw.w3.org/topic/HCLSIG/LODD/Data
>>
>>
>> Kingsley
>>
>>> ________________________________________
>>> From: foaf-dev-bounces at lists.foaf-project.org 
>>> [foaf-dev-bounces at lists.foaf-project.org] On Behalf Of Kingsley 
>>> Idehen [kidehen at openlinksw.com]
>>> Sent: Tuesday, April 28, 2009 5:16 PM
>>> To: Hugh Glaser
>>> Cc: Semantic Web; foaf-dev Friend of a
>>> Subject: Re: [foaf-dev] [foaf-protocols]  FOAF sites offline during 
>>> cleanup
>>>
>>> Hugh Glaser wrote:
>>>
>>>> Hi Kingsley.
>>>> It is great for people to be able to find a lot of the LOD cloud at 
>>>> your site, but please be careful about your claims concerning the 
>>>> data you have crawled from LOD.
>>>> To say "our actual VoiD graph for LOD cloud" is to mislead readers 
>>>> into thinking that it captures more than it does.
>>>>
>>>>
>>> Yes, and No.
>>>
>>> Remember, I did try to partition the LOD-Cloud by Warehouse,
>>> Sponged/RDFized, and Crawled, but nobody would have it.
>>>
>>> What we have right now is the LOD-Cloud Warehouse. Also note, when you
>>> look at the VoiD graph you are seeing Graph Group IRIs (containers of
>>> Graphs that contain Triples), so you need to drill down a level or two.
>>>
>>> Also, if you feel a dataset dump is missing from the LOD-Cloud
>>> pictorial, please don't hesitate to hola etc..
>>>
>>> BTW - I don't equate the LOD-Cloud pictorial as being equivalent to the
>>> Linked Data Web :-)
>>>
>>> Kingsley
>>>
>>>> Best
>>>> Hugh
>>>>
>>>>
>>>> On 28/04/2009 13:10, "Kingsley Idehen" <kidehen at openlinksw.com> wrote:
>>>> As for the % re. FOAF, I think that can be determined from our actual
>>>> VoiD graph for LOD cloud [1]. I don't know off the top of my head if
>>>> FOAF is up to 50%.
>>>>
>>>>
>>>>> The "Linked" part of the name implies that crawling is a valid tactic
>>>>> to gather the data to me.
>>>>>
>>>>>
>>>> Not disputing that, just describing what we have in the instance :-)
>>>> Remember, we've sponged (crawled and RDFized) data since inception of
>>>> our participation in this space.
>>>>
>>>> Links:
>>>>
>>>> 1. http://lod.openlinksw.com/void/Dataset
>>>>
>>>> Kingsley
>>>>
>>>>
>>>>
>>>
>>>
>>> -- 
>>>
>>>
>>> Regards,
>>>
>>> Kingsley Idehen       Weblog: http://www.openlinksw.com/blog/~kidehen
>>> President & CEO
>>> OpenLink Software     Web: http://www.openlinksw.com
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> foaf-dev mailing list
>>> foaf-dev at lists.foaf-project.org
>>> http://lists.foaf-project.org/mailman/listinfo/foaf-dev
>>>
>>>
>>
>>
>> -- 
>>
>>
>> Regards,
>>
>> Kingsley Idehen          Weblog: http://www.openlinksw.com/blog/~kidehen
>> President & CEO
>> OpenLink Software     Web: http://www.openlinksw.com
>>
>>
>>
>>
>> _______________________________________________
>> foaf-dev mailing list
>> foaf-dev at lists.foaf-project.org
>> http://lists.foaf-project.org/mailman/listinfo/foaf-dev
>
>


-- 


Regards,

Kingsley Idehen	      Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO 
OpenLink Software     Web: http://www.openlinksw.com






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