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Re: best practice RDF in HTML

From: Sebastian Hellmann <hellmann@informatik.uni-leipzig.de>
Date: Tue, 12 Jun 2012 18:22:50 +0200
Message-ID: <4FD76CDA.5080202@informatik.uni-leipzig.de>
To: Mark Birbeck <mark.birbeck@webbackplane.com>
CC: public-lod <public-lod@w3.org>, semantic-web <semantic-web@w3.org>
Dear Mark,
my main concerns are:
1. What are the best practices to include invisible RDFa in an HTML 
document. I think Keith answered that. Maybe at the end of the body 
would be the most unobtrusive way.  The same question was raised here: 
http://answers.semanticweb.com/questions/10161/is-visually-hidden-rdfa-an-anti-pattern 

I just wanted to reassure that hidden RDFa is not contradicting the 
intention of RDFa.
Are there any practical disadvantages (besides the obvious increase in 
byte size)?

2. Are there any alternatives to RDFa to include RDF in HTML ?

All the best,
Sebastian


On 06/12/2012 05:52 PM, Mark Birbeck wrote:
> Hi Sebastian,
>
> It's not clear to me whether you are saying that you don't want to use
> RDFa because:
>
> * you don't like it, or;
>
> * you think that it needs to have some user-oriented manifestation.
>
> There is no requirement that the RDFa in a document is displayed to
> the user in any way, or that the triples somehow 'double-up'. This
> means that your example could also be marked up like this:
>
>    <div
>      xmlns:cd="http://www.recshop.fake/cd#"
>      about="http://www.recshop.fake/cd/Empire_Burlesque"
>    >
>       <span property="cd:artist" content="Bob Dylan"></span>
>      <span property="cd:dbpedia"
> resource="http://dbpedia.org/resource/Empire_Burlesque"></span>
>    </div>
>
> Regards,
>
> Mark
>
>
> On Tue, Jun 12, 2012 at 3:02 PM, Sebastian Hellmann
> <hellmann@informatik.uni-leipzig.de>  wrote:
>> Dear list,
>> What are the best practice to include a set of RDF triples in HTML.
>> *Please note*: I am not looking for the RDFa way to include triples. I just
>> want to add a set of triples somewhere in an HTML document. They are not
>> supposed to show up like "Wikinomics", "Don Tapscott" in  the following
>> example:
>>
>> <div  xmlns:dc="http://purl.org/dc/elements/1.1/"
>>   about="http://www.example.com/books/wikinomics">
>>   <span  property="dc:title">Wikinomics</span>
>>   <span  property="dc:creator">Don Tapscott</span>
>>   <span  property="dc:date">2006-10-01</span>
>> </div>
>>
>> I don't want to use the strings in the HTML document as objects in the
>> triples. My use case is that I just have a large set of triples, e.g. 1000
>> that I want to include as a bulk somewhere and ship along with the html.
>> Which way is the best? Do the examples below work?
>> All the best,
>> Sebastian
>>
>> *******************************************
>> Include in head
>> ******************************************
>> <html>
>> <head>
>> <script type="application/rdf+xml">
>> <rdf:RDF
>> xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
>> xmlns:cd="http://www.recshop.fake/cd#">
>>
>> <rdf:Description
>> rdf:about="http://www.recshop.fake/cd/Empire Burlesque">
>> <cd:artist>Bob Dylan</cd:artist>
>> <cd:dbpedia rdf:resource="http://dbpedia.org/resource/Empire_Burlesque">
>> </rdf:Description>
>> </rdf:RDF>
>> </script>
>> </head>
>> <body>
>> </body>
>> </html>
>> ******************************
>> attach after html
>> *****************************
>> <html>
>> <head>
>> </head>
>> <body>
>> </body>
>> </html>
>> <rdf:RDF
>> xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
>> xmlns:cd="http://www.recshop.fake/cd#">
>>
>> <rdf:Description
>> rdf:about="http://www.recshop.fake/cd/Empire Burlesque">
>> <cd:artist>Bob Dylan</cd:artist>
>> <cd:dbpedia rdf:resource="http://dbpedia.org/resource/Empire_Burlesque">
>> </rdf:Description>
>> </rdf:RDF>
>>
>>
>> --
>> Dipl. Inf. Sebastian Hellmann
>> Department of Computer Science, University of Leipzig
>> Projects: http://nlp2rdf.org , http://dbpedia.org
>> Homepage: http://bis.informatik.uni-leipzig.de/SebastianHellmann
>> Research Group: http://aksw.org
>>
>>
>


-- 
Dipl. Inf. Sebastian Hellmann
Department of Computer Science, University of Leipzig
Projects: http://nlp2rdf.org , http://dbpedia.org
Homepage: http://bis.informatik.uni-leipzig.de/SebastianHellmann
Research Group: http://aksw.org
Received on Tuesday, 12 June 2012 16:23:35 UTC

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