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Re: How many instances of foaf:Person are there in the LOD Cloud?

From: Mischa Tuffield <mmt04r@ecs.soton.ac.uk>
Date: Wed, 13 Apr 2011 13:37:48 +0200
Cc: Michael Brunnbauer <brunni@netestate.de>, Bernard Vatant <bernard.vatant@mondeca.com>, Linking Open Data <public-lod@w3.org>
Message-Id: <F5BFE0E0-0657-4C9B-9DDC-243ABFBD49C1@ecs.soton.ac.uk>
To: Melvin Carvalho <melvincarvalho@gmail.com>
Hi All, 

I was looking at the number of foaf files on the web over a year ago now, output looks like so : 

http://mmt.me.uk/slides/lod24022010/#(16) 

Mischa
On 13 Apr 2011, at 12:11, Melvin Carvalho wrote:

> On 13 April 2011 10:54, Michael Brunnbauer <brunni@netestate.de> wrote:
>> 
>> re
>> 
>> On Wed, Apr 13, 2011 at 10:15:46AM +0200, Bernard Vatant wrote:
>>> Just trying to figure what is the size of personal information available as
>>> LOD vs billions of person profiles stored by Google, Amazon, Facebook,
>>> LinkedIn, unameit ... in proprietary formats.
>> 
>> At www.foaf-search.net, we have ca. 3.5 mio instances of foaf:Person.
>> 
>> The biggest chunk out there is probably livejournal.com with more than 25mio
>> users which we cannot index all right now (we have 221090 of them).
>> 
>> Another big one is hi5.com but the FOAF is quite broken so we don't crawl it.
> 
> gmail at one point were publishing foaf profiles ... so that's quite a few more
> 
> facebook graph is not quite foaf but certainly machine readable JSON,
> and could easily be transformed to FOAF, so that's another chunk
> 
> there's a few bridges too such as ones last.fm, flikr and semantic tweet
> 
> So including bridge I'd guess 250 million, 99% should be alive today,
> but that number will fall over time (obviously)
> 
>> 
>> See also:
>> 
>> http://www.w3.org/wiki/FoafSites
>> http://wiki.foaf-project.org/w/DataSources
>> 
>> Regards,
>> 
>> Michael Brunnbauer
>> 
>> --
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> 



Received on Wednesday, 13 April 2011 11:38:31 UTC

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