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Re: Size matters -- How big is the danged thing

From: Richard Cyganiak <richard@cyganiak.de>
Date: Sat, 22 Nov 2008 16:11:43 +0000
Cc: "Giovanni Tummarello" <giovanni.tummarello@deri.org>, "Jim Hendler" <hendler@cs.rpi.edu>, "Michael Hausenblas" <michael.hausenblas@deri.org>, public-lod@w3.org
Message-Id: <A4B6E3C3-F401-4F79-9743-64E5B2451296@cyganiak.de>
To: Yves Raimond <yves.raimond@gmail.com>

Yves,

On 21 Nov 2008, at 22:30, Yves Raimond wrote:
> On Fri, Nov 21, 2008 at 8:08 PM, Giovanni Tummarello
> <giovanni.tummarello@deri.org> wrote:
>>
>> IMO considering myspace 12 billion triples as part of LOD, is quite a
>> stretch (same with other wrappers) unless they are provided by the
>> entity itself (E.g. i WOULD count in livejournal foaf file on the
>> other hand, ok they're not linked but they're not less useful than  
>> the
>> myspace wrapper are they? (in fact they are linked quite well if you
>> use the google social API)
>
> Actually, I don't think I can agree with that. Whether we want it or
> not, most of the data we publish (all of it, apart from specific cases
> e.g. review) is provided by wrappers of some sort, e.g. Virtuoso, D2R,
> P2R, web services wrapper etc. Hence, it makes not sense trying to
> distinguish datasets on the basis they're published through a
> "wrapper" or not.
>
> Within LOD, we only segregate datasets for inclusion in the diagram on
> the basis they are published according to linked data principles. The
> stats I sent reflect just that: some stats about the datasets
> currently in the diagram.
>
> The origin of the data shouldn't matter. The fact that it is published
> according to linked data principles and linked to at least one dataset
> in the cloud should matter.

I think this view is too simplistic.

I think what Giovanni and others mean when they try to distinguish  
“wrappers” from other kinds of LOD sites is not about the  
implementation technology. It's not about wether the data comes from a  
triple store or RDBMS or flat files or REST APIs or whatever.

It's about licenses and rights.

If I wrap an information service provided by a third party into a  
linked data interface, then I should better watch out that the terms  
of service permit this, and that no copyright laws are violated.

There are some sites in the LOD cloud that, as far as I can tell,  
violate the TOS of the originating service. The MySpace wrapper and  
the RDF Book Mashup are maybe the clearest examples. Others are in the  
grey area.

This is always an issue when party A wraps a service provided by party  
B. I think it's reasonable to treat all these datasets with extra  
caution, unless A has provided a clear argument and documentation to  
the effect that B'a license permits this kind of service.

Best,
Richard




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>> Giovanni
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Received on Saturday, 22 November 2008 16:12:19 UTC

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