Re: invitation to try ImageSnippets

On 4/28/13 12:27 PM, Margaret Warren wrote:
> Hello All,
>
> Metadata Authoring Systems, LLC has released a completely new kind of
> application for images
> that uses linked data for metadata creation and saves the data in html+RDFa.
>
> ImageSnippets can be used both for digital asset management within the
> application
> and/or as an image publishing platform - with images shared/embedded in
> metadata wrappers.
>
> The application has a lot of features for linked data professionals, but it
> is designed to be
> very easy to use by people who have little or no understanding of the
> semantic web. In preliminary
> testing, most users who had no knowledge of linked data learned how to use
> the system very rapidly.
>
> But the system also has a number of features for advanced users,
> oranizations or specialized communities.
> Custom datasets can be built on the fly and by request, custom releases of
> ImageSnippets can be loaded
> with specialized vocabularies.
>
> The system is in very early beta testing and works best in Chrome so we urge
> you to test
> it that way. Firefox has some known bugs and other browsers have not yet
> been tested at all.
> Also - at this time, any image you link or upload into the system will be
> publically searchable.
>
> We welcome your feedback!
>
> http://www.imagesnippets.com
>
> Thank you,
> Margaret Warren

Very interesting project and certainly a useful contribution to the 
growing tools collection associated with RDF and RDF based Linked Data.

A few questions (* Not A Criticism *):

1. What is the URL of your SPARQL endpoint? -- I ask because the results 
in your SPARQL query form don't expose the actual SPARQL service 
endpoint thereby not allowing me to access data using the 
SPARQL-Protocol URL patterns.

2. Are you exposing 5-star Linked Data URIs via this service? -- I ask 
because I took a random URI (plus one for an image I annotated) from 
your sample SPARQL query and passed it through the Vapour Linked Data 
URI verifier, without successful results [1][2].

I ask the question above because you are minting URIs that denote 
entities in a domain controlled by your app/service. Thus, you do have 
the ability to put content negotiation to use by virtue of your URI 
pattern choices. By that I mean, your content negotiation can be 
explicit  (using HTTP response metadata) or implicit (hash based HTTP 
URIs give you that).

For instance, I was able to figure out that by substituting ".png" with 
".html"  in the URIs generated by your service is how I get to an  
(X)HTML+RDFa document that exposes the RDF metadata for the image I 
uploaded and annotated [3]. I successfully passed the document through 
the W3C RDFa distiller to get a Turtle based description document [4].


Links:

1. 
http://uriburner.com:8000/vapour?uri=http%3A%2F%2Fwww.imagesnippets.com%2Fimgtag%2Fimages%2Fmm%40carmapro.com%2FP1010996.JPG&defaultResponse=dontmind&userAgent=vapour.sourceforge.net 
-- vapour report on a sample URI

2. 
http://uriburner.com:8000/vapour?uri=http%3A%2F%2Fwww.imagesnippets.com%2Fimgtag%2Fimages%2Fkidehen%40openlinksw.com%2FLinked_Data_Semiotic_Triangle.png&defaultResponse=dontmind&userAgent=vapour.sourceforge.net

3. 
http://www.imagesnippets.com/imgtag/images/kidehen@openlinksw.com/Linked_Data_Semiotic_Triangle.html

4. 
http://www.w3.org/2007/08/pyRdfa/extract?uri=http%3A%2F%2Fwww.imagesnippets.com%2Fimgtag%2Fimages%2Fkidehen%40openlinksw.com%2FLinked_Data_Semiotic_Triangle.html&format=turtle&warnings=false&parser=lax&space-preserve=true 
.

Kingsley
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-- 

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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