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Re: Several questions about Linked Data

From: Tim Berners-Lee <timbl@w3.org>
Date: Wed, 23 Mar 2011 15:21:00 +0530
Cc: wenlei zhou <wenlei.zhouwl@gmail.com>, public-lod@w3.org
Message-Id: <74B25DFC-0F3B-439E-861F-90FB25D4F417@w3.org>
To: Richard Light <richard@light.demon.co.uk>
Richard

When you have a triple which is in your linked data set
which includes a URI in another dataset, then that is called a link.
Just as when you have an HTML document which has the URI
of an anchor of another HTML document.

Not sure why you say there is no real linking going on.
You can follow the links with a (RDF) browser,
you need to do link maintenance just like for HTML links if the other server goes away, etc

Tim

On 2011-03 -23, at 15:02, Richard Light wrote:

> In message <AANLkTi=vY_7qWK2+ZS97erTOUzim42KsYTZH3EcRrWH7@mail.gmail.com>, wenlei zhou <wenlei.zhouwl@gmail.com> writes
>> Hi, every one
>> I'm a novice to Linked Data. In the learning of linked data, I got several
>> questions.
>> 
>> 1. When public a new data set, how does it connect to other data sets in
>> the Linked Data Cloud. Just use the record linkage techniques to connect
>> two identifiers which are actually telling the same entity? Or, is this
>> method only applied to publishing large new data set, not small one?
>> 2. Where is the rdf data stored, which connects two data sets?  Is it just
>> stored in a third party?
> 
> Hi,
> 
> The way I see it, the name "Linked Data" isn't totally helpful. It should be "Linkable Data" or "Potentially Linked Data". There is no actual "connection to other data sets" going on, except by the well-established web techniques of spidering Linked Data resources, and aggregating what is found into a single point of search.
> 
> What "connects two data sets" is simply the fact that they [may] use the same URL to represent the same concept, and that they express statements in a simple graph language which makes it easy to merge sets of statements from different sources, and to query across them without the need for physical merging.
> 
> Others may offer differing views on this issue ...
> 
> Best wishes,
> 
> Richard
> 
> -- 
> Richard Light
> 
> 
Received on Wednesday, 23 March 2011 09:51:28 UTC

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