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Re: ESWC 2008 Linked Data Playground

From: Chris Bizer <chris@bizer.de>
Date: Thu, 29 May 2008 21:52:04 +0100
Message-ID: <007d01c8c1cd$da61fb50$c4e84d57@named4gc1asnuj>
To: "David Huynh" <dfhuynh@alum.mit.edu>, <kidehen@openlinksw.com>
Cc: <public-lod@w3.org>

Hi David,

> Now, with all that open linked data, how much work does it take to get 
> lat/lng of 2 dozen well-known organizations? Should be trivial, right?

Yes, trivial and very useful indeed.

If somebody would go though the effort and put them online somewhere, we 
would be more than happy to set RDF links from the ESWC 2008 to this data.



Chris Bizer
Freie Universitšt Berlin
+49 30 838 54057
----- Original Message ----- 
From: "David Huynh" <dfhuynh@alum.mit.edu>
To: <kidehen@openlinksw.com>
Cc: <public-lod@w3.org>
Sent: Thursday, May 29, 2008 4:35 PM
Subject: Re: ESWC 2008 Linked Data Playground

> Kingsley Idehen wrote:
>> David Huynh wrote:
>>> Hi Richard,
>>> If you look at this version
>>> http://people.csail.mit.edu/dfhuynh/projects/eswc2008/eswc2008-rdf.html
>>> you'll see that the RDF/XML file is linked directly. So, there's pretty 
>>> much zero cost in getting RDF into Exhibit (it took me about 5 minutes 
>>> to put that exhibit up). Exhibit automatically routes RDF/XML files 
>>> through Babel for conversion. In the first version, I did that 
>>> conversion and saved the JSON output so that Babel won't get invoked 
>>> every time someone views the exhibit. That's an optimization. Of course, 
>>> Babel isn't perfect in doing the conversion.
>>> Here is an iPhone mockup version for the same exhibit:
>>> http://people.csail.mit.edu/dfhuynh/projects/eswc2008/iphone/iphone-exhibit.html
>>> I only tested it on Firefox and Safari. I think the back button 
>>> functionality doesn't quite work that well, but you get the idea.
>>> David
>> David,
>> Even if you don't use RDFa to express what <> is about i.e. it's 
>> foaf:primarytopic, foaf:topic etc..
>> In the Exhibit pages <head/> You can accompany:
>> <link 
>> href="http://data.semanticweb.org/dumps/conferences/eswc-2008-complete.rdf" 
>> type="application/rdf+xml" rel="exhibit/data" />
>> with
>> <link rel="alternate" 
>> href="http://data.semanticweb.org/dumps/conferences/eswc-2008-complete.rdf" 
>> type="application/rdf+xml" />
>> I think we need to adopt a multi pronged approach to exposing Linked Data 
>> (the raw data behind the Web Page):
>> 1. Content Negotiation (where feasible)
>> 2. <link rel=.../>  (for RDF sniffers/crawlers)
>> 3. RDFa
>> Re. point 2, I've just taken a random person "Abhita Chugh 
>> <http://demo.openlinksw.com/rdfbrowser2/?uri=http%3A%2F%2Fsemanticweb.org%2Fwiki%2FAbhita_Chugh>" 
>> from <http://data.semanticweb.org> which exposes the RDF based 
>> Description of "Abhita Chugh" 
>> <http://demo.openlinksw.com/rdfbrowser2/?uri=http%3A%2F%2Fsemanticweb.org%2Fwiki%2FAbhita_Chugh> 
>> via our RDF Browser without problems (we use all 3 of the methods above 
>> to seek "Linked Data" associated with a Web Document). In this case it 
>> also eliminates the need to translate anything (e.g. routing via Babel) 
>> since the original data source is actually RDF.
>> Of course, I could take the exhibit page and slap this in myself, but I 
>> am hoping you could tweak Exhibit such that it does point 2 and maybe 
>> point 3 automatically. That would be a major boost re. Exhibit's Linked 
>> Data credentials :-)
> Exhibit can't do #2 because it only acts on the page at runtime, so the 
> author of an exhibit must put that in herself. And that I just did for the 
> ESWC 2008 exhibits.
> BTW, Semtech 2008 has a cool Exhibit-backed event browser:
>    http://www.semantic-conference.com/scheduler/
> Maybe future *SWC conferences would have use for the same service.
> So, it'd be good to get lat/lng coordinates for the affiliations and then 
> plot the speakers on a map, like what I did for ISWC 2007 (just for 
> kicks):
> http://people.csail.mit.edu/dfhuynh/projects/graph-based-exhibit/graph-based-exhibit2.html
> Now, with all that open linked data, how much work does it take to get 
> lat/lng of 2 dozen well-known organizations? Should be trivial, right?
> David
Received on Thursday, 29 May 2008 20:52:50 UTC

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