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Re: Fwd: Knowledge Graph links to Freebase

From: Kingsley Idehen <kidehen@openlinksw.com>
Date: Sun, 03 Jun 2012 15:32:38 -0400
Message-ID: <4FCBBBD6.7010709@openlinksw.com>
To: lotico-list@googlegroups.com, "semantic-web@w3.org" <semantic-web@w3.org>, lod2 <lod2@lists.informatik.uni-leipzig.de>
On 6/3/12 2:20 PM, Marco Neumann wrote:
> Here is an interesting geek find, and further evidence for how Google
> uses unique identifiers directly from the freebase database.
>
> I mean we all new that Google bought freebase so it's fair play they
> use their assets. wondering why they add the base64 gzip and redirect
> overhead though.
>
> maybe Google hashes them to index them for another store. Vini is
> Google working on the Pregel store?
>
> Marco
>
>
>
>
> ---------- Forwarded message ----------
> From: Andreas Thalhammer<andreas.thalhammer@sti2.at>
> Date: Sun, Jun 3, 2012 at 10:05 AM
> Subject: Knowledge Graph links to Freebase
> To: semantic-web@w3.org
>
>
> Dear all,
>
> I want to take the opportunity to present my findings after analysing
> the patterns of Google's Knowledge Graph.
>
> Each summary has a unique identifier. This identifier is used when
> linking to other entities, e.g.
>
> H4sIAAAAAAAAAONgVuLQz9U3MKs0LgIAXXSnTQwAAAA
>
> stands for the summary of Steve Jobs.
>
> The URI to get the summary is
> https://www.google.com/search?hl=en&sa=X&q=steve+jobs&stick=H4sIAAAAAAAAAONgVuLQz9U3MKs0LgIAXXSnTQwAAAA
>
> I found out that this key is created with 2 tools, namely base64 and gzip.
>
> We can use this key to find out what the original content was (hoping
> to find a link to Freebase).
>
> The way to go is the following:
>
> 1. Store the identifier above (H4sl..) in a file, e.g. id.b64
> 2. console:$ base64 -d id.b64>  id.gz
> 3. console:$ gunzip id.gz
> 4. console:$ cat id
>
> -->  /m/06y3r
>
> Now, add the freebase namespace to that:
>
> http://rdf.freebase.com/ns/m/06y3r
>
> This redirects to:
>
> http://www.freebase.com/view/en/steve_jobs
>
> Have a nice Sunday!
>
> Andreas
>
> --
> Andreas Thalhammer
> PhD Student
> Semantic Technology Institute
> University of Innsbruck
> http://www.sti2.at/
>
> phone: +43 (0) 512507 6454
> email: andreas.thalhammer@sti2.at
>
>
>
>

FYI

It speaks volumes all by itself. Thus, I return to my contemptuous 
silence re., this matter :-)

-- 

Regards,

Kingsley Idehen	
Founder&  CEO
OpenLink Software
Company Web: http://www.openlinksw.com
Personal Weblog: http://www.openlinksw.com/blog/~kidehen
Twitter/Identi.ca handle: @kidehen
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Received on Sunday, 3 June 2012 19:33:06 GMT

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